TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort: Anmerkung zur Einschätzung reformpädagogischer Konzepte. (Das Kind (1992) 12) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1992 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43345 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1991) 10) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1991 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43335 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1992) 11) N2 - No abstract available KW - Kind KW - Erziehung KW - Montessori Y1 - 1992 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43312 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1993) 14) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1993 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43293 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1993) 13) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1993 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43288 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1991) 9) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1991 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43307 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1994) 15) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1994 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43087 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1994) 16) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1994 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-43074 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1988) 4) N2 - No abstract available KW - Kind KW - Erziehung KW - Montessori Y1 - 1988 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42806 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1989) 5) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1989 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42789 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1989) 6) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1989 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42779 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1990) 8) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1990 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42744 ER - TY - JOUR A1 - Harth-Peter, Waltraud T1 - Vorwort (Das Kind (1990) 7) N2 - No abstract available KW - Kind KW - Erziehung Y1 - 1990 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42721 ER - TY - JOUR A1 - Fiala, Brigitte A1 - Maschwitz, Ulrich T1 - Extrafloral nectaries in the genus Macaranga (Euphorbiaceae) in Malaysia: comparative studies of their possible significance as predispositions for myrmecophytism. N2 - So me species of the paleotropical tree genus Macaranga (Euphorbiaceae) live in elose association with ants. Thc genus comprises the full range of species from those not regularly inhabited by ants to obligate myrmecophytes. In Malaysia (peninsular and Borneo) 23 ofthe 52 species areknown to be ant-associated (44%). The simplest structural adaptation of plants to attract ants are extrafloral nectaries. We studied the distribution of extraflural nectaries in the genus Macaranga to assess the significance of this character as a possible predisposition for the evolution of obligate myrmecophytism. All species have marginal glands on the leaves. However, only the glands of nonmyrmecophytic species function as nectaries, whereas liquids secreted by these glands in myrmecophytic species did not contain sugar. Some non-myrmecophytic Macaranga and transitional Macaranga species in addition have extrafloral nectaries on the leaf blade near the petiole insertion. All obligatorily myrmecophytic Macaranga species, however, lack additional glands on the lamina. The non-myrmecophytic species are visited by a variety of different ant species, whereas myrmecophytic Macaranga are associated only with one specific ant-partner. Since these ants keep scale insects in the hollow sterns, reduction of nectary production in ant-inhabited Macaranga seems to be biologically significant. We interpret this as a means of (a) saving the assimilates and (b) stabilization of maintenance of the association's specificity. Competition with other ant species for food rewards is avoided and thereby danger ofweakening the protective function ofthe obligate antpartner for the plant is reduced. A comparison with other euphorb species living in the same habitats as Macaranga showed that in genera in which extrafloral nectaries are widespread, no myrmecophytes have evolved. Possession of extrafloral nectaries does not appear to be essential for the development of symbiotic ant-plant interactions. Other predispositions such as nesting space might have played a more important role. KW - Macaranga KW - extrafloral nectaries KW - ant-plant interactions KW - evolution of myrmecophytism KW - Malaysia Y1 - 1991 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42863 ER - TY - JOUR A1 - Fiala, Brigitte A1 - Mebert, M. T1 - Partnerschaft fürs Überleben. Ameisenbäume im tropischen Regenwald. N2 - No abstract available Y1 - 1990 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42900 ER - TY - JOUR A1 - Fiala, Brigitte T1 - Partnerschaften von Pflanzen und Ameisen: Ameisenbäume im malaysischen Regenwald. N2 - No abstract available Y1 - 1991 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42936 ER - TY - JOUR A1 - Maschwitz, Ulrich A1 - Fiala, Brigitte A1 - Linsenmair, K. Eduard T1 - A new ant-tree from SE Asia: Zanthoxylum myriacanthum (Rutaceae), the Thorny Ivy-Rue N2 - Zanthoxylum myriacanthum, a small Rutaceous tree growing mainly in secondary hill forests in SE Asia, is a true myrmecophyte. It possesses stem domatia in the form of hollow branches with slitlike openings. Branch hollows and entrance slits are produced by the plant itself through pith degene~.tion ?u.d growth proceSses. If the entrance is not kept open by ants it closes again by growth ol the surrounding tissue after some time. The domatia are colonized opportunistic ally by different arboreous ants, e.g. Crematogaster and Campono tus. Additionally many small extrafloral nectaries are found on the leaflets of Zanthoxylum myriacanthum. Judging from herbarium studies and literature records at least four more true ant trees are found in the genus Zanthoxylum namely Z. rhetsa in SE Asia, Z. conspersipunctatum, Z. pluviatile and Z. vinkii in New Guinea. We could not confirm ant inhabitation in Drypetes pendula (Euphorbiaceae) on the Malay Peninsula, which has also been recorded to be an anttree. Y1 - 1992 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42967 SN - 0025-1291 ER - TY - JOUR A1 - Meierott, Lenz T1 - Ernst Koch (1843–1926), seine floristischen Aktivitäten in Südthüringen und Franken und sein bisher unveröffentlichtes Manuskript "Neue Funde von Pflanzen – Unterfranken" T1 - Ernst Koch (1843-1926), botanical activities in Southern Thuringia and in Franconia including his hitherto unpublished manuscript "New locations of plants - Lower Franconia" N2 - Ernst Koch (1843-1926), Gymnasiallehrer in Meiningen (Südthüringen), hat sich neben seinen Forschungen zu Geschichte und Landeskunde des Herzogtums Meiningen in den Jahren zwischen 1895 und 1906 auch intensiv mit der Flora von Südthüringen und angrenzender Gebiete Unterfrankens beschäftigt. Seine floristischen Aktivitäten werden dargestellt und seine Beziehungen zum Thüringischen Botanischen Verein anhand des noch erhaltenen Briefwechsels beschrieben. N2 - Ernst Koch (1843-1926) was teacher at a gymnasium (high school) in Meiningen (Southern Thuringia). Beside his studies on history and applied geography of the Duchy of Meiningen he investigated the flora of Southern Thuringia and adjacent northern areas of Lower Franconia between 1895 and 1906. The present report deals with his botanical activities and his critical relations to the Botanical Society of Thuringia documented by exchanged letters. KW - Botanik KW - Flora KW - Unterfranken KW - Südthüringen Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-41935 ER - TY - JOUR A1 - Koch, Ernst T1 - Neue Funde von Pflanzen – Unterfranken (bearbeitet und herausgegeben von Lenz Meierott) T1 - New locations of plants - Lower Franconia (edited and published by Lenz Meierott) N2 - Ein umfangreiches, bisher nicht veröffentlichtes Manuskript Kochs zur Flora Unterfrankens mit Schwerpunkt auf den Naturräumen Rhön, Grabfeld und Haßberge (ca. 1900-1906[1907]) wird kommentiert und erstmals herausgegeben. N2 - A detailed hitherto unpublished manuscript of the Flora of Lower Franconia with main focus on the natural landscapes Rhön, Grabfeld and Haßberge (~ 1900-1906[1907]) is published here with comments. KW - Botanik KW - Flora KW - Rhön KW - Grabfeld KW - Haßberge KW - Unterfranken Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-41959 ER - TY - JOUR A1 - Hughes, Colin A1 - Müller, Dorothee A1 - Hacker, Jörg A1 - Goebel, Werner T1 - Genetics and pathogenic role of Escherichia coli hemolysin N2 - While clear evidence exists for the direct involvement of cytolysins in the pathogenesis of Gram-positive bacteria, the significance of Gram-negative haemolysins remains unclear. This paper presents briefly data indicating a role for haemolysin production in infections caused by Escherichia coli and also experiments which have allowed an analysis of the molecular basis of the haemolysis among pathogenic and non-pathogenic strains of this species. KW - Toxicity ; plasmids KW - gene-cloning Y1 - 1982 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-40082 ER -