TY  - JOUR
A1  - Dandekar, Thomas
A1  - Argos, Patrick
T1  - Amiloride-sensitive epithelial Na\(^+\) channel is made of three homologous subunits
N2  - No abstract available
Y1  - 1994
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-29734
ER  - 
TY  - JOUR
A1  - Rostás, Michael
A1  - Eggert, Katharina
T1  - Ontogenetic and spatio-temporal patterns of induced volatiles in Glycine max in the light of the optimal defence hypothesis
N2  - Plants attacked by herbivorous insects emit a blend of volatile compounds that serve as important host location cues for parasitoid wasps. Variability in the released blend may exist on the whole-plant and within-plant level and can affect the foraging efficiency of parasitoids. We comprehensively assessed the kinetics of herbivore-induced volatiles in soybean in the context of growth stage, plant organ, leaf age, and direction of signal transport. The observed patterns were used to test the predictions of the optimal defence hypothesis (OD). We found that plants in the vegetative stage emitted 10-fold more volatiles per biomass than reproductive plants and young leaves emitted >2.6 times more volatiles than old leaves. Systemic induction in single leaves was stronger and faster by one day in acropetal than in basipetal direction while no systemic induction was found in pods. Herbivore-damaged leaves had a 200-fold higher release rate than pods. To some extent these findings support the OD: i) indirect defence levels were increased in response to herbivory and ii) young leaves, which are more valuable, emitted more volatiles. However, the fact that reproductive structures emitted no constitutive or very few inducible volatiles is in seeming contrast to the OD predictions. We argue that in case of volatile emission the OD can only partially explain the patterns of defence allocation due to the peculiarity that volatiles act as signals not as toxins or repellents.
KW  - Chemische Ökologie
KW  - Pflanzeninhaltsstoff
KW  - Verteidigung
KW  - Pflanzenfressende Insekten
KW  - Indirekte Abwehr
KW  - Sojabohne
KW  - Spodoptera frugiperda
KW  - Tritrophische Interaktionen
KW  - indirect plant defence
KW  - soybean
KW  - Spodoptera frugiperda
KW  - tritrophic interactions
Y1  - 2008
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-26991
ER  - 
TY  - JOUR
A1  - Maric, Dario
T1  - Das System der Aussprachefehler der Bosnisch/Kroatisch/Serbisch lernenden Deutschen
N2  - Im vorliegenden Beitrag werden Phoneminventare des Deutschen und des Bosnisch-/Kroatisch-/Serbischen einander gegenübergestellt mit dem Ziel der Aufstellung eines regelmäßigen konsequenten, nur für die Bosnisch/Kroatisch/Serbisch lernenden Deutschen charakteristischen Systems der Aussprachefehler, das aus der zu feststellenden Verschiedenheit der Lautsysteme des Deutschen und des B/K/S hervorgeht. Die Phoneme und Allophone beider Sprachen werden vom artikulatorischen Standpunkt aus beschrieben, es wird auf ihre Distribution innerhalb des Wortes hingewiesen, schließlich wird ihr phonologischer Status innerhalb des Lautsystems festgestellt. Die Einflüsse der deutschen Dialekte auf die Perzeption und die Artikulation des B/K/S bei den B/K/S lernenden Deutschen werden hier nicht in Betracht gezogen.
N2  - Confronting the phonetic (vocal) systems of German and Bosnian/Croatian/Serbian language in this essay, it s tried to establish their diversities from which comes unique system of pronunciation mistakes. This system is applied to German learners of Bosnian/Croatian/Serbian language. Outside this already mentioned system, we have pronunciation mistakes that come from diversity of B/C/S phonetic system and phonetic systems of German local dialects, because they are not equally applied for all Germans, and pronunciation mistakes that are made under influence of b/c/s spelling, but this is not the reason for them not to be mentioned in this essay. Pronunciation mistakes mainly occur because of the absence of non distinctive and distinctive characteristics in German language: middle degree of openness, that is, confinement of vowels, palatalization of some affricates, laterals, nasals, fricatives, then the presence of voice of some fricatives and affricates, inexistence of alveolar thrills and inexistence of musical accent.
KW  - Südslawische Sprachen
KW  - Phonologie
KW  - Deutsch
KW  - bosnisch-/kroatisch-/serbische Sprache
KW  - deutsche Sprache
KW  - System der Aussprachefehler
KW  - Phoneminventar
KW  - Interferenz
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-17496
ER  -