@article{StoeckliLililienNaeherNoeetal.1991, author = {St{\"o}ckli, K. A. and Lililien, L. E. and N{\"a}her- No{\´e}, M. and Breitfeld, G. and Hughes, Richard A. and Raff, M. C. and Thoenen, Hans and Sendtner, Michael}, title = {Regional distribution, developmental changes, and cellular localization of CNTF-mRNA and protein in the rat brain}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31172}, year = {1991}, abstract = {Ciliary neurotrophic factor (CNTF) is a potent survival molecule for a variety of embryonic neurons in culture. The developmental expression of CNTF occurs clearly after the time period of the physiological cell death of CNTF-responsive neurons. This, together with the sites of expression, excludes CNTF as a target-derived neuronal survival factor, at least in rodents. However, CNTF also participates in the induction of type 2 astrocyte differentiation in vitro. Here we demonstrate that the time course of the expression of CNTF-mRNA and protein in the rat optic nerve (as evaluated by quantitative Northern blot analysis and biological activity, respectively) is compatible with such a glial differentiation function of CNTF in vivo. We also show that the type 2 astrocyte-inducing- activity previously demonstrated in optic nerve extract can be precipitated by an antiserum against CNTF. Immunohistochemical analysis of astrocytes in vitro and in vivo demonstrates that the expression of CNTF is confined to a subpopulation of type 1 astrocytes. The olfactory bulb of adult rats has comparably high levels of CNTF to the optic nerve, and here again, CNTF-immunoreactivity is localized in a subpopulation of astrocytes. However, the postnatal expression of CNTF in the olfactory bulb occurs later than in the optic nerve. In other brain regions both CNTF-mRNA and protein levels are much lower.}, language = {en} } @article{MasuWolfHoltmannetal.1993, author = {Masu, Yasuo and Wolf, Eckhard and Holtmann, Bettina and Sendtner, Michael and Brem, Gottfried and Thoenen, Hans}, title = {Disruption of the CNTF gene results in motor neuron degeneration}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33038}, year = {1993}, abstract = {CNTF is a cytosolic molecule expressed postnatally in myelinating Schwann cells and in a subpopulation of astrocytes. Although CNTF administration prevents lesion-mediated and genetically determined motor neuron degeneration, its physiological function remained elusive. Here it is reported that abolition of CNTF gene expression by homologous recombination results in a progressive atrophy and loss of motor neurons in adult mice, which is functionally reflected by a small but significant reduction in muscle strength.}, language = {en} } @article{MengSendtnerSmith1995, author = {Meng, Li and Sendtner, Michael and Smith, Austin}, title = {Essential function of LIF receptor in motor neurons}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34219}, year = {1995}, abstract = {D EVELOPME'iT and maintenance of the mammalian nervous system is dependent upon neurotrophic cytokines. One class of neurotrophic factor acts through rcccptor complexes involving the lowaffinity leukaemia inhibitor y faclor receptor subunit (LlF-R). Members of this fa mily of cytokines, such as ciliary neurotrophic factor (CNTF) and leukaemia inhibitory factor (LIF), have profound effects on the survival and maintenance of motor neurons, Recently it was reported that mice lacking LlF-R die shortly after birth unlike mice lacking CNTF or LIF which are viable. Here we describe histopathological analyses of lifr mutants tha t reveal a loss > 35\% of facia l motor neurons, 40\% of spinal motor neurons and 50\% of neurons in the nucleus ambiguus. These findings point to the existence of a ligand for LIF-R tha t is required for the normal development of motor neurons in both brainstem nuclei and spinal cord.}, language = {en} } @article{StoeckliLottspeichSendtneretal.1989, author = {St{\"o}ckli, K. A. and Lottspeich, F. and Sendtner, Michael and Masiakowski, P. and Carroll, Patrick and G{\"o}tz, Rudolf and Lindholm, D. and Thoenen, Hans}, title = {Molecular cloning, expression and regional distribution of rat ciliary neurotrophic factor}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34229}, year = {1989}, abstract = {CILIARY neurotrophic factor (CNTF) was originally characterized as a survival factor for chick ciliary neurons in vitro. More recently, it was shown to promote the survival of a variety of otherneuronal cell types and to affect the differentiation of E7 chick sympathetic neurons by inhibiting their proliferation and by inducing the expression of yasoactiYe intestinal peptide immunoreactiyity (VIP-IR). In cultures of dissociated sympathetic neurons from newborn rats, CNTF induces cholinergic differentiation as shown by increased levels of choline acetyltransferase (ChAT.}, language = {en} } @article{Ellgring1982, author = {Ellgring, Johann Heinrich}, title = {Video-unterst{\"u}tzte Therapie und Supervision - ein {\"U}berblick}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33599}, year = {1982}, abstract = {No abstract available}, language = {de} } @article{BuenemannPott1993, author = {B{\"u}nemann, Moritz and Pott, Lutz}, title = {Membrane-delimited activation of muscarinic K current by an albumin-associated factor in guinea-pig atrial myocytes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31300}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{VortkampGesslerPaslieretal.1994, author = {Vortkamp, Andrea and Gessler, Manfred and Paslier, D. Le and Elaswarapu, R. and Smith, S. and Grzeschik, Karl-Heinz}, title = {Isolation of a yeast artificial chromosome contig spanning the Greig cephalopolysyndactyly syndrome (GCPS) gene region}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30182}, year = {1994}, abstract = {Disruption of the zinc finger gene GLI3 has been shown to be the cause of Greig cephalopolysyndactyly syndrome (GCPS), at least in some GCPS translocation patients. To characterize this genomic region on human chromosome 7p13, we have isolated a VAC contig of more than 1000 kb including the GLI3 gene. In this contig the gene itself spans at least 200-250 kb. A CpG island is located in the vicinity of the 5' region of the known GLI3 cDNA, implying a potential promoter region.}, language = {en} } @article{MaschwitzFialaDolling1987, author = {Maschwitz, U. and Fiala, Brigitte and Dolling, W. R.}, title = {New trophobiotic symbioses of ants with South East Asian bugs}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34030}, year = {1987}, abstract = {A trophobiotic relationship between two species of phloem-feeding plataspid bugs and an ant, Meranoplus mucronatus, was discovered on tree trunks in Malaysia. Similar relationships were found between coreid bugs and Crematogaster sp. and Anoplolepis longipes, on bamboo in the same area. The ants recruit to groups of the bugs and feed on the liquid, sugar-rich faeces of the larvae, stimulating release of the honeydew by tactile signals. They protect all stages of the bugs from disturbance by biting and by the use of defensive secretions. Phloem-feeding bugs in the families Plataspidae and Coreidae need long sty lets to pierce the thick bark of their host tree. The different methods of accommodating the resting stylets in these two families are described. The plataspids are described as Tropidotylus servus sp. novo and T. minister sp. novo A coreid previously reported in association with M. mucronatus in Malaya is described as Hygia cliens sp. novo The coreids on bamboo were determined as Cloresmus spp. and Notobitus affinis.}, language = {en} } @article{MorenoDiazdelaEspinaFrankeKrohneetal.1982, author = {Moreno-Diaz de la Espina, Susana and Franke, Werner W. and Krohne, Georg and Trendelenburg, Michael F. and Grund, Christine and Scheer, Ulrich}, title = {Medusoid fibril bodies: a novel type of nuclear filament of diameter 8 to 12 nm with periodic ultrastructure demonstrated in oocytes of Xenopus laevis}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34116}, year = {1982}, abstract = {No abstract available}, language = {en} } @article{HadjiolovaRoseScheer1986, author = {Hadjiolova, Krassimira and Rose, Kathleen M. and Scheer, Ulrich}, title = {Immunolocalization of nucleolar proteins after D-galactosamine-induced inhibition of transcription in rat hepatocytes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33205}, year = {1986}, abstract = {No abstract available}, language = {en} } @article{MaschwitzFialaMoogetal.1991, author = {Maschwitz, Ulrich and Fiala, Brigitte and Moog, J. and Saw, L. G.}, title = {Two new myrmecophytic associations from the Malay Peninsula: ants of the genus Cladomyrma as partners of Saraca thaipingensis and Crypteronia griffithii}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32992}, year = {1991}, abstract = {In Peninsular Malaysia the trees Saraca thaipingensis (Caesalpiniaceae) and Crypteronia griffithii (Crypteroniaceae) are inhabited by ants. In the vicinity ofGombak, near Kuala Lumpur, the hollow internodes of young Saraca thaipingensis plants are colonized mainly by two Cladomyrma species. In larger trees a Crematogaster sp. is also found. Crypteronia griffithii is inhabited by a third species of Cladomyrma. None of these species is conspecific with any of the three Cladomyrma taxa so far described. The colonies are founded by single mated queens, which have a conspicuous, sphecid wasp-like behaviour when searching for host plants and nest sites. They chew holes into the plant intern odes and hollow them out to provide nest sites. Coccids and pseudococcids are cultivated within the internodes. The homopterans are not carried by queens on their nuptial flights. They apparently find their way by themselves into the cavities or are perhaps carried there by the worker ants. The Cladomyrma ants on Crypteronia are not aggressive, in contrast to those on Saraca thaipingensis. The relationship of Crypteronia with ants seems to be obligatory, whereas Saraca was only partly colonized by Cladomyrma. The interaction of Saraca with Crematogaster sp. is loose and facultative, since the Crematogaster sp. also lives on other tree species. Our studies have now revealed four Cladomyrma spp. which are regularly associated with plants. The genus therefore seems to have an entirely myrmecophytic way of life.}, language = {en} } @article{LillienSendtnerRohreretal.1988, author = {Lillien, Laura E. and Sendtner, Michael and Rohrer, Hermann and Hughes, Simon M. and Raff, Martin C.}, title = {Type-2 Astrocyte Development in Rat Brain Cultures is initiated by a CNTF-like protein produced by type-1 astrocytes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31708}, year = {1988}, abstract = {No abstract available}, language = {en} } @article{SchuesslerSkinnerRoland1993, author = {Sch{\"u}ssler, Ulrich and Skinner, David N. B. and Roland, Norbert W.}, title = {Subduction-related Mafic to Intermediate Plutonism in the Northwestern Wilson Terrane, North Victoria Land and Oates Coast, Antarctica}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31805}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{Schuessler1993, author = {Sch{\"u}ssler, Ulrich}, title = {Zur geologischen Situation der Erzlagerst{\"a}tte Kupferberg-Neufang in der Umrahmung der M{\"u}nchberger Gneismasse}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31791}, year = {1993}, abstract = {Die Kupfer-Zink-Lagerst{\"a}tte von Kupferberg-Neufang im Bereich der M{\"u}nchberger Deckenstruktur besteht aus einem etwa 4 km langen Zug einzelner stratiformer Vererzungslinsen, der in NW-SE-Richtung vom anchimetamorphen Pal{\"a}ozoikum "Bayerischer" Faziesentwicklung in die Prasinit-Phyllit-Serie hin{\"u}berzieht. Bisherige lagerst{\"a}ttenkundliche Untersuchimgen interpretierten die gesamte Lagerst{\"a}tte als einheitliche, submarin-exhalativ entstandene stratiforme Bildung in Zusammenhang mit ordovizischem basischem Vulkanismus, der in den Rahmengesteinen der Lagerst{\"a}tte durch die Diabase der anchimetamorphen Randschieferserie bzw. die Prasinite der Prasinit-Phyllit-Serie dokumentiert ist. Diese Vorstellung steht jedoch in deutlichem Widerspruch zu den Ergebnissen neuerer geochemischer und biostratigraphischer Untersuchungen, die f{\"u}r die Diabase und Prasinite eine v{\"o}llig unterschiedliche Zusammensetzung ergaben und die zeigten, daß die Prasinit-Phyllit-Serie schon im Oberproterozoikum, die erzf{\"u}hrenden Schichten im anchimetamorphen Pal{\"a}ozoikum aber erst im Unterdevon sedimentiert wurden. F{\"u}r eine Kl{\"a}rung der Situation sind weitere Untersuchungen im Bereich der Lagerst{\"a}tte erforderlich.}, language = {de} } @article{KreuzerSeidelSchuessleretal.1989, author = {Kreuzer, Hans and Seidel, Eberhard and Sch{\"u}ssler, Ulrich and Okrusch, Martin and Lenz, Karl-Ludwig and Raschka, Helmut}, title = {K-Ar geochronology of different tectonic units at the northeastern margin of the Bohemian Massif}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31811}, year = {1989}, abstract = {No abstract available}, language = {en} } @article{SchuesslerRichterOkrusch1989, author = {Sch{\"u}ssler, Ulrich and Richter, P. and Okrusch, Martin}, title = {Metabasites from the KTB Oberpfalz target area, Bavaria - geochemical characteristics and examples of mobile behaviour of "immobile" elements}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31021}, year = {1989}, abstract = {No abstract available}, language = {en} } @article{SchuesslerOppermannKreuzeretal.1986, author = {Sch{\"u}ssler, Ulrich and Oppermann, Uwe and Kreuzer, Hans and Seidel, Eberhard and Okrusch, Martin and Lenz, Karl-Ludwig and Raschka, Helmut}, title = {Zur Altersstellung des ostbayerischen Kristallins - Ergebnisse neuer K-Ar Datierungen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31778}, year = {1986}, abstract = {No abstract available}, language = {de} } @article{Ruhe1991, author = {Ruhe, Ernstpeter}, title = {Ahmed Sefrioui: La bo{\^i}te {\`a} merveilles.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36766}, year = {1991}, abstract = {No abstract available}, language = {de} } @article{Ruhe1989, author = {Ruhe, Ernstpeter}, title = {Die Turnierkunst des Huon de M{\´e}ry}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36753}, year = {1989}, abstract = {No abstract available}, language = {de} } @article{Ruhe1977, author = {Ruhe, Ernstpeter}, title = {Rezeptionsgeschichte und Trivialliteratur: Ein Leser der Nouvelle H{\´e}loise im Jahre 1838.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36728}, year = {1977}, abstract = {No abstract available}, language = {de} } @article{Ruhe1984, author = {Ruhe, Ernstpeter}, title = {Der Roman als totales Spiel: Alain Robbe-Grillet, Topologie d'une cit{\´e} fant{\^o}me.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36889}, year = {1984}, abstract = {No abstract available}, language = {de} } @article{Ruhe1985, author = {Ruhe, Ernstpeter}, title = {Aim{\´e} C{\´e}saires Bearbeitungen von Une saison au Congo}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36837}, year = {1985}, abstract = {No abstract available}, language = {de} } @article{Ruhe1978, author = {Ruhe, Ernstpeter}, title = {Caliban als Dialektiker}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36850}, year = {1978}, abstract = {No abstract available}, language = {de} } @article{Ruhe1970, author = {Ruhe, Ernstpeter}, title = {A Johenne, ma dame et m'amie}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36735}, year = {1970}, abstract = {No abstract available}, language = {fr} } @article{Ruhe1970, author = {Ruhe, Ernstpeter}, title = {Enanchet - "semplice compilatore"?}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36967}, year = {1970}, abstract = {No abstract available}, language = {fr} } @article{PletichaGeuder1989, author = {Pleticha-Geuder, Eva}, title = {Die Drucke des W{\"u}rzburger "Kreises der J{\"u}ngeren"}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36296}, year = {1989}, abstract = {No abstract available}, subject = {W{\"u}rzburg}, language = {de} } @article{PletichaGeuder1988, author = {Pleticha-Geuder, Eva}, title = {Ex Bibliotheca Monasterii Neustatt ad Moenum. Zur Geschichte der Bibliothek von Kloster Neustadt am Main bis zur S{\"a}kularisation.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35469}, year = {1988}, abstract = {No abstract available}, subject = {W{\"u}rzburg / Universit{\"a}tsbibliothek}, language = {de} } @article{PletichaGeuder1989, author = {Pleticha-Geuder, Eva}, title = {Erl{\"a}uterungen zu den Miniaturen der Handschrift}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35451}, year = {1989}, abstract = {Die Fries-Chronik des F{\"u}rstbischofs Julius Echter von Mespelbrunn : eine fr{\"a}nkische Prachthandschrift des 16. Jahrhunderts aus dem Bestand der Universit{\"a}tsbibliothek W{\"u}rzburg Codex M.ch. f.760 ; [Ausstellung zur 500. Wiederkehr des Geburtstages von Magister Lorenz Fries (1489 - 1550), 19. Oktober - 3. Dezember 1989, Universit{\"a}tsbibliothek W{\"u}rzburg]}, subject = {Fries}, language = {de} } @article{Daut1980, author = {Daut, Volker}, title = {Die Entwicklung der Todesvorstellung bei Kindern und Jugendlichen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-36069}, year = {1980}, abstract = {No abstract available}, language = {de} } @article{HeuerReusch1992, author = {Heuer, D. and Reusch, Wolfgang}, title = {Das belastete Potentiometer - Ein Beispiel f{\"u}r Absch{\"a}tzungen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30634}, year = {1992}, abstract = {No abstract available}, language = {de} } @article{Ruhe1994, author = {Ruhe, Ernstpeter}, title = {Sir{\`e}ne en (n)ixe. Mytheninversion in Mallarm{\´e}s Sonett 'A la nue accablante'}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33863}, year = {1994}, abstract = {No abstract available}, language = {de} } @article{DunkelHildelResseguier2007, author = {Dunkel, Franz G. and Hildel, Werner and Ress{\´e}guier, Peter}, title = {Hieracium fallax Willd. und weitere Hieracium echioides-Zwischenarten im nordwestlichen Bayern}, doi = {10.3264/FG.2007.0427}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35337}, year = {2007}, abstract = {Die Grenze des riesigen eurasiatisch-kontinentalen Areals von Hieracium echioides Lumn. verl{\"a}uft durch Mitteldeutschland, Zwischenarten aus der Hieracium echioides-Verwandtschaft (sect. Echinina) dringen westlich bis in die Oberrheinebene vor, sind aber im {\"u}brigen S{\"u}den und S{\"u}dosten Deutschlands sehr selten oder fehlen. In den letzten Jahren wurden im Nordwesten Bayerns neue Wuchsorte von Hieracium auriculoides L{\´a}ng (MTB 5526.31, 5924.44, 6125.13, 6223.22), H. calodon Tausch ex Peter (6123.21, 6125.13) und H. fallax Willd. (6223.21) nachgewiesen. Dies stellt den zweiten aktuellen Nachweis von H. fallax in Bayern dar, bemerkenswert ist ein Nachweis von H. auriculoides in der Rh{\"o}n in ca. 700 m Meeresh{\"o}he.}, subject = {Habichtskraut}, language = {de} } @article{Ewald2007, author = {Ewald, J{\"o}rg}, title = {Ein pflanzensoziologisches Modell der Schattentoleranz von Baumarten in den Bayerischen Alpen}, doi = {10.3264/FG.2007.0803}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35345}, year = {2007}, abstract = {The ecological niche, as a summary of the environment in which a tree species can live, is a central concept in vegetation ecology and its application in silviculture. While the fundamental niche focusses on the physiological constraints of survival and growth, the realised niche takes competition in real communities into account. To understand realised niches in a causal fashion requires knowledge of the life cycle of plant species. The concept of regeneration niche is based on the notion that establishment and juvenile growth are particularly sensitive stages. Obviously, silviculturalists must be particularly interested in regeneration niches. The database BERGWALD contains 4,934 phytosociological plots from mountain forests and related vegetation types of the Bavarian Alps. The detailed information on plant species composition (trees, tree regeneration, shrubs, herbs and bryophytes) and cover has so far been used extensively for deriving vegetation units, site types and groups of indicator species. In the present study the database content was analysed with regard to the ecology of tree species in general and their regeneration niche in particular. The availability of light as a crucial resource that changes during forest succession was estimated by calculating average Ellenberg indicator values (mL) based on total field and bryophyte layer composition. The relative frequency of plots across the mL gradient in the total database was juxtaposed to the occurrence of the 16 most common tree species in the tree and in the regeneration layer, respectively. [...] As expected, the realised niches of tree species on the light gradient corresponded broadly to Ellenberg's L-value of tree regeneration. As the regional climax, Abies alba and Fagus sylvatica have coincident optima of tree layer and juvenile occurrences in closed, mature stands. Ulmus glabra and Fraxinus excelsior, as species of lower altitude, exhibit niches most similar to these climax species, followed by Acer pseudoplatanus and Picea abies, two of the most frequent species, that occur from low elevations to the timber line. The intermediate role of these four species is confirmed, as regeneration occurs mostly at light levels higher than those found under adult trees of the same species. Against expectations, Taxus baccata clearly prefers stands with moderate to high light, as do Sorbus aria, Sorbus aucuparia and Alnus incana. While Larix decidua and Pinus cembra occupy very similar overall niches, tree layer and regeneration niches of Larix differ markedly, whereas coincident layer niches in Pinus cembra underpin its status as a climax species at tree line. Pinus sylvestris and Salix eleagnos are typical shade-intolerant pioneers, of which regeneration is practically restricted to non-forest vegetation. Pinus rotundata and Juniperus communis are small trees that are entirely restricted to open stands subject to geomorphological activity. The results demonstrate the potential of phytosociological databases for studying the niches of tree species. To be sure, such analyses are no replacement for physiological and experimental studies. The research community is invited to use this source as a reference framework and an empirical validation for more specialised research.}, subject = {Baumart}, language = {de} } @article{Meierott2008, author = {Meierott, Lenz}, title = {Cerastium brachypetalum Desp. ex Pers. und Cerastium tenoreanum Ser. (Caryophyllaceae) in Franken}, doi = {10.3264/FG.2008.1022}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35354}, year = {2008}, abstract = {F{\"u}r Cerastium tenoreanum Ser. und die Variet{\"a}ten von Cerastium brachypetalum Desp. ex Pers. werden ihre korrekte Nomenklatur, ihre Unterscheidungsmerkmale und ihre Verbreitung in S{\"u}ddeutschland und Franken mitgeteilt. Die gegenw{\"a}rtige Ausbreitungstendenz annueller Cerastien wird diskutiert.}, subject = {Hornkraut}, language = {de} } @article{GottschlichDrenckhahn2005, author = {Gottschlich, G{\"u}nter and Drenckhahn, Detlev}, title = {Iconography of the Genus Hieracium in central Europe - Part 1: General Description and Morphotypes}, doi = {10.3264/FG.2005.0502}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35363}, year = {2005}, abstract = {The genus Hieracium comprises more than one thousand sexual and apomictic species in Europe, with numerous intermediates and microspecies. Only a small fraction of the members of the genus Hieracium has been illustrated or photo-documented in the literature. Since many of these publications are difficult to obtain, only a few specialists are familiar with most of the species and subspecies described in the literature. In order to overcome this problem and encourage geobotanical research on the genus Hieracium, we decided to edit an iconography of central and southern European Hieracia in an electronical journal (Forum geobotanicum) with free international access through the internet. Part I of this endeavour contains descriptions and photographs of the morphological spectrum of the genus Hieracium. Here, we categorize the genus into 15 basic morphotypes. These types conform partly to the sections and subsections of the genus Hieracium, but are in some cases informal and may even include members of different sections. Classification of morphotypes is considered helpful to obtain a first rough picture of an unknown species that then can be traced to the species and subspecies level by using keys or, after completion of this iconography, simply by screening the relevant images. One particularly novel aspect of the present endeavour will be the regular inclusion of magnified images and scanning electron micrographs.}, subject = {Habichtskraut}, language = {en} } @article{Dunkel2005, author = {Dunkel, Franz G.}, title = {Zur Kenntnis des Ranunculus auricomus-Komplexes in Deutschland: Ranunculus suborbicularis spec. nova}, doi = {10.3264/FG.2005.1222}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35377}, year = {2005}, abstract = {Die bei Schwarz (1949) als R. vertumnalis abgebildeten Pflanzen entsprechen nicht dem Typusmaterial, sondern weichen durch fast kreisf{\"o}rmige Blattspreiten der Schlussbl{\"a}tter und geringe Blattteilung ab. Sie werden hier als R. suborbicularis spec. nov. beschrieben und mit ihrem Blattzyklus und weiteren Belegen abgebildet. Die bekannte Verbreitung erstreckt sich auf Berlin (wohl erloschen), Th{\"u}ringen und Bayern. Insgesamt ist aufgrund der kleinen Zahl der Populationen eine starke Gef{\"a}hrdung anzunehmen.}, subject = {Gold-Hahnenfuß}, language = {de} } @article{RostanskiMeierott2006, author = {Rostanski, Krzysztof and Meierott, Lenz}, title = {Zur Gattung Oenothera L. in Franken - mit besonderer Ber{\"u}cksichtigung von Oenothera stucchii Soldano (neu f{\"u}r Deutschland)}, doi = {10.3264/FG.2006.0310}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35388}, year = {2006}, abstract = {In August 2004 the authors of this report undertook a survey on the Genus Oenothera (evening-primroses) in the valley of the river Main between the cities of Schweinfurt and Bamberg (Bavaria, Lower and Upper Franconia). 22 different taxa were identified, most of which are new to Bavaria, one new for Europe (Oenothera hazelae Gates) and another one new for Middle Europe (Oenothera stucchii Soldano). In this report a list of all Oenothera species found in Franconia is given and Oenothera stucchii, a particular tall (up to > 2 m) species with extremely long Hypanthia of 50-70 mm and fruit capsules with truncated teeth, is described and depicted in more detail.}, subject = {Nachtkerze }, language = {de} } @article{RoederJeschkeKiehl2006, author = {R{\"o}der, Daniela and Jeschke, Michael and Kiehl, Kathrin}, title = {Vegetation und B{\"o}den alter und junger Kalkmagerrasen im Naturschutzgebiet "Garchinger Heide" im Norden von M{\"u}nchen}, doi = {10.3264/FG.2006.1013}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35397}, year = {2006}, abstract = {Das Naturschutzgebiet "Garchinger Heide" ist ein Relikt der ehemals ausgedehnten Kalkmagerrasen auf Pararendzinen {\"u}ber Niederterrassenschotter im Alpenvorland. Bei jahrhundertelanger extensiver Landnutzung hat sich auf trockenen n{\"a}hrstoffarmen B{\"o}den eine artenreiche Vegetation mit zahlreichen seltenen und gef{\"a}hrdeten Arten entwickelt. Die "Altheide", welche den gr{\"o}ßten Teil des Naturschutzgebiets einnimmt, ist gepr{\"a}gt durch flachgr{\"u}ndige, n{\"a}hrstoffarme B{\"o}den, welche eine geschlossene Vegetation mit einem hohen Anteil an Arten der Halbtrockenrasen (haupts{\"a}chlich Mesobromion erecti und Cirsio-Brachypodion) tragen. Das 1945 durch Oberbodenabtrag begonnene, aber nicht mehr ausgebaute und verwendete „Rollfeld" weist einen niedrigen Feinbodenanteil, welcher auf eine geringe Wasserverf{\"u}gbarkeit schließen l{\"a}sst, sowie niedrige Gehalte an Gesamtstickstoff und CAL-austauschbaren P2O5 auf. Die Vegetation ist l{\"u}ckig mit einem hohen Anteil an Trockenrasenarten (Xerobromion, Sedo-Scleranthetea, Sesleritalia albicantis). Das heutige Vorkommen zahlreicher Arten, welche in fr{\"u}heren Untersuchungen (1956 und 1986) nicht gefunden wurden, l{\"a}sst auf eine fortschreitende Sukzession der Vegetation des Rollfeldes hin zu der der Altheide schließen. Der 1959 zum Naturschutzgebiet hinzu gekaufte ehemalige Acker unterscheidet sich immer noch deutlich von der Altheide. Eine allm{\"a}hliche Ann{\"a}herung der Standortbedingungen ist jedoch zu beobachten. So sanken die Gehalte an CAL-austauschbarem P_ 2 O_5 und K_2 O im Vergleich zu Werten aus dem Jahr 1993 deutlich ab. Trotz des immer noch hohen Anteils an Gr{\"u}nlandarten (Molinio-Arrhenatheretea) konnten sich im Vergleich zu 1986 mehr Magerrasenarten etablieren.}, subject = {Vegetation}, language = {de} } @article{ArgosDandekar1994, author = {Argos, P. and Dandekar, Thomas}, title = {Delineating the main chain topology of four-helix bundle proteins using the genetic algorithm and knowledge based on the amino acid sequence alone}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33807}, year = {1994}, abstract = {No abstract available}, subject = {Proteine}, language = {en} } @article{HuebnerWissemann2004, author = {H{\"u}bner, Stefanie and Wissemann, Volker}, title = {Morphometrische Analysen zur Variabilit{\"a}t von Prunus spinosa L. - Populationen(Prunoideae, Rosaceae) im mittleren Saaletal, Th{\"u}ringen}, doi = {10.3264/FG.2004.1215}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35207}, year = {2004}, abstract = {Prunus spinosa L. (Rosaceae) is one of the most widespread members of the genus Prunus in middle europe. Its morphological plasticity resulted in a number of described taxa at subspecific level. Since the early neolithic times, drupes of the plum family are recorded and exhibit already a remarkable diversity in size and form. Here we present a short historical account to the use of P. spinosa and an overview of the different taxonomic treatments. We examined distribution patterns in general and in particular in the central valley of the river Saale (Thuringia) with respect to ecological, edaphic and climatic factors. We assessed within 16 populations the variability of 22 metric and 10 qualitative morphological characters at 7 different locations. Population sites included forest-, way- and fieldsides, as well as lightish pine forests. Pollen fertility did not increase during the flowering period, all flowers were directly fully fertile from the beginning. In contrast, glucose content varied significantly depending of the status of fertilization. Epicuticular wax structure was without variation amongst the populations. P. spinosa leaves are covered with a smooth layer of slightly striated wax. Morphological characters were scored on 270 branches and 506 fruits. Most of the characters showed enormous variability among and within populations such as metrics of leaves, thorns and character states of flower morphology. The lowest variability among populations and therefore not dependend of modificatory factors was found in fruit characters. Since kernel morphology seems to be genetically rather than modificatory controlled, we applied the 3 taxonomical concepts of Werneck, K{\"u}hn and Scholz u. Scholz to identify evolutionary units at subspecific levels. However, population variability was still so high, that from our study here we can not support an infraspecific classification of Prunus spinosa L.}, subject = {Prunus}, language = {de} } @article{Ewald2004, author = {Ewald, J{\"o}rg}, title = {{\"O}kologie der Weißtanne (Abies alba Mill.) im bayerischen Alpenraum}, doi = {10.3264/FG.2004.1109}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35193}, year = {2004}, abstract = {Based on queries of the phytosociological databank BERGWALD, a compilation of 3.504 forest vegetation plots from the Bavarian Alps, the ecological niche of Abies alba is re-assessed. The tree species occurs mostly admixed in mountain forests with Fagus and Picea rather than forming distinctive communities of its own. Climatically, Abies is widely distributed to the upper limit of the montane belt, but occurs only sparsely in subalpine forest. Analysis of Ellenberg indicator values based on total species composition yielded the following results: As a tolerant species Abies regeneration has a marked preference for shady forest, which in turn Abies tree layers themselves help create. It also has a clear preference for acidic topsoil conditions. Sites with low N-supply, such as early successional stages on raw carbonate soils, are rarely colonised by Abies. Also, dry and markedly wet forest sites in the region are avoided by Abies. Permutation-based indicator species analysis found a large number of common forest species as being significantly associated with Abies and its frequent companion Fagus sylvatica, whereas there is a negative relationship with more specialised Seslerion and Erico-Pinion species. As Abies alba has very few specific companion species not shared with either Fagus or Picea, the delimitation of Abietetum-syntaxa appears mostly motivated by ecological rather than phytosociological considerations. As a result of its susceptibility towards game browsing, Abies regeneration is an indicator of high woody species richness. The study broadly confirms Abies alba's status as a climax species intermediate between Fagus and Picea, and demonstrates the potential of large phytosociological databanks for niche modelling.}, subject = {Weißtanne}, language = {de} } @article{Rostas2007, author = {Rost{\´a}s, Michael}, title = {The effects of 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one on two species of Spodoptera and the growth of Setosphaeria turcica in vitro}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35079}, year = {2007}, abstract = {Maize seedlings contain high amounts of glucosidically bound 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA). The effects of DIMBOA on the feeding behaviour and performance of two noctuids, Spodoptera exigua H{\"u}bner and S. frugiperda Smith, were compared. The question was raised whether S. frugiperda, preferring maize and other Poaceae, is better adapted to DIMBOA than S. exigua. In addition, the effects of DIMBOA on the mycelial growth of the plant pathogen Setosphaeria turcica Leonard et Suggs (causal agent of northern corn leaf blight) was assessed in vitro. DIMBOA had an antifeedant effect on S. exigua but stimulated feeding in S. frugiperda in dual-choice experiments. In a no-choice setup, larvae of S. exigua gained less biomass and had a prolonged development when feeding on an artificial diet containing DIMBOA. However, pupal weight was not significantly different between treatments. In contrast, larvae of S. frugiperda were not affected by DIMBOA. Strong detrimental effects of DIMBOA were found on the mycelial growth of the pathogen S. turcica.}, subject = {Eulen }, language = {en} } @article{Drenckhahn2004, author = {Drenckhahn, Detlev}, title = {Neue und wieder entdeckte Hieracien auf R{\"u}gen}, doi = {10.3264/FG.2004.0127}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34843}, year = {2004}, abstract = {The island of R{\"u}gen (Rugia), located in the Baltic sea, is the most northeastern (NE) part of Germany. Due to its particular geographic position at the border between scandinavian, middle european and continental european floral elements, R{\"u}gen harbours several hawkweed species (Hieracia) of the scandinavian area such as Hieracium fuscocinererum, H. subramosum, H. subrigidum and H. diaphanoides subsp. neoornatum and, at the same time, is the most northwestern location of H. echioides. Two endemic Hieracium species have been identified recently, i. e. H. muorum subsp. rugianum and H. caesium subsp. zabelianum (Gottschlich et al. 1998, Bot. Rundbr. Mecklenburg-Vorpommern 31:1-94). In the present communication, two further novel endemic Hieracium taxa will be described, which are restricted to the chalk cliffs of Cape Arkona and Jasmund, i. e. H. swantevitii and H. lachenalii subsp. litocretaceum. H. swantevitii (Swantevit's hawkweed) is intermediate between H. caesium/H. bifidum and H. lachenalii with hairy, modestly glandular involucre and slightly serrated elongated leaves . This view of an intermediate position of H. swantevitii between these species was further supported by the ultrastructure of epidermal papillae of the outer bracts of the involucre visualized by scanning electron microscopy. H. lachenalii subsp. litocretaceum (chalk cliff hawkweed) is characterized by its narrow anguste to almost linear denticulate leaves in combination with mode rately glandular heads. In addition to the description of these two new hawkweed taxa , the rediscovery of three further species will be reported for R{\"u}gen, i. e. H. echioides (W. Gager in SE R{\"u}gen), H. cymosum subsp. cymosum (close to G{\"o}hren in SE R{\"u}gen) and H. subrigidum E Glowe in N R{\"u}gen. The locality of H. echioides appears to be most north-western site in middle Europe, the locality of H. cymosum is one of the last growth sites in the northern German lowlands and H. subrigidum (so far only known as a single herbarium specimen, collected 1858 in R{\"u}gen) has so far not been recorded in other localities of middle Europe.}, subject = {Habichtskraut}, language = {de} } @article{WuBeckerWaagetal.1991, author = {Wu, Y. S. and Becker, Charles R. and Waag, A. and Bicknell-Tassius, R. N. and Landwehr, G.}, title = {The effects of laser illumination and high energy electrons on molecular-beam epitaxial growth of CdTe}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30795}, year = {1991}, abstract = {We report the results of a detailed investigation on the Te-stabilized (2 x 1) and the Cdstabilized c( 2 X 2) surfaces of ( 100) CdTe substrates. The investigation demonstrates for the first time that both laser illumination and, to a greater extent, high-energy electron irradiation increase the Te desorption and reduce the Cd desorption from ( 100) CdTe surfaces. Thus it is possible by choosing the proper growth temperature and photon or electron fluxes to change the surface reconstruction from the normally Te-stabilized to a Cd-stabilized phase.}, language = {en} } @article{KleinschmidtScheerDabauvalleetal.1983, author = {Kleinschmidt, J{\"u}rgen A. and Scheer, Ulrich and Dabauvalle, Marie-Christine and Bustin, Michael and Franke, Werner W.}, title = {High mobility group proteins of amphibian oocytes: a large storage pool of a soluble high mobility group-1-like protein and involvement in transcriptional events}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33250}, year = {1983}, abstract = {No abstract available}, language = {en} } @article{Ruhe1976, author = {Ruhe, Ernstpeter}, title = {Nouvelle critique und Strukturalismus}, isbn = {3-87452-263-6}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32324}, year = {1976}, abstract = {No abstract available}, subject = {Romanische Sprachen}, language = {de} } @article{Ruhe1992, author = {Ruhe, Ernstpeter}, title = {Centre vide, cadre plein: les Romanesques d'Alain Robbe-Grillet}, isbn = {3-8233-4120-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30524}, year = {1992}, abstract = {No abstract available}, subject = {Autobiographie ; Robbe-Grillet}, language = {fr} } @article{GrafeSchmuckLinsenmair1992, author = {Grafe, T. Ulmar and Schmuck, Richard and Linsenmair, Karl Eduard}, title = {Reproductive energetics of the African Reed Frogs, Hyperolius viridiflavus and Hyperolius marmoratus}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31187}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{Linsenmair1994, author = {Linsenmair, Karl Eduard}, title = {Biologische Vielfalt und {\"o}kologische Stabilit{\"a}t}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31157}, year = {1994}, abstract = {No abstract available}, language = {en} } @article{PlakhutinArbuznikov1992, author = {Plakhutin, B. N. and Arbuznikov, Alexei V.}, title = {Equations for determination of vector coupling coefficients in systems with two open shells. Ions of transition metals with p\(^M\)d\(^N\) configuration}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30746}, year = {1992}, abstract = {No abstract available}, language = {en} }