@article{BaumannEckermannKrauseetal.1994, author = {Baumann, Ingrid and Eckermann, Nora and Krause, Udo and Baumann, Guido}, title = {Effects of sucrose in the culture medium on cytological characteristics, pigments and photosynthetic activity of green callus cultures of sugar beet}, year = {1994}, language = {en} } @article{SchubertSchluckebierBackmannetal.1994, author = {Schubert, Dieter and Schluckebier, Gerd and Backmann, Jan and Granzien, Joachim and Kisker, Caroline and Choe, Hui-Woog and Hahn, Ulrich and Pfeil, Wolfgang and Saenger, Wolfram}, title = {X-ray crystallographic and calorimetric studies of the effects of the mutation Trp59Tyr in ribonuclease T1}, year = {1994}, language = {en} } @article{WollenbergerNeumannRiedeletal.1994, author = {Wollenberger, Ursula and Neumann, B. and Riedel, K. and Scheller, Frieder W.}, title = {Enzyme and microbial sensors for phosphate, phenols, pesticides and peroxides}, year = {1994}, language = {en} } @article{Pfeil1994, author = {Pfeil, Wolfgang}, title = {Native-like intermediates in protein folding}, year = {1994}, language = {en} } @article{JustWalz1994, author = {Just, Frank and Walz, Bernd}, title = {Salivary glands of the cockroach, Periplaneta americana : new data from light and electron-microscopy}, issn = {0362-2525}, year = {1994}, language = {en} } @article{PfeilNoeltingJung1993, author = {Pfeil, Wolfgang and N{\"o}lting, Bengt and Jung, Christiane}, title = {Apocytochrome P450cam is a native protein with some intermediate-like properties}, year = {1993}, language = {en} } @article{Pfeil1993, author = {Pfeil, Wolfgang}, title = {Thermodynamics of apocytochrome b5 unfolding}, year = {1993}, language = {en} } @article{PfeilNoeltingJung1993, author = {Pfeil, Wolfgang and N{\"o}lting, Bengt and Jung, Christiane}, title = {Thermodynmic properties of apocytochrome P450cam}, year = {1993}, language = {en} } @article{DamaschunDamaschunGastetal.1993, author = {Damaschun, Gregor and Damaschun, Hilde and Gast, Klaus and Misselwitz, Rolf and M{\"u}ller, J{\"u}rgen J. and Pfeil, Wolfgang and Zirwer, Dietrich}, title = {Cold denaturation-induced conformational changes in phosphoglycerate kinase from yeast}, year = {1993}, language = {en} } @article{WollenbergerScheller1993, author = {Wollenberger, Ursula and Scheller, Frieder W.}, title = {Enzyme activation for activator and enzyme activity measurement}, year = {1993}, language = {en} } @article{WollenbergerNeumannScheller1993, author = {Wollenberger, Ursula and Neumann, B. and Scheller, Frieder W.}, title = {Enzyme and microbial sensors for environmental Monitoring}, year = {1993}, language = {en} } @article{SchellerWollenbergerSchubertetal.1993, author = {Scheller, Frieder W. and Wollenberger, Ursula and Schubert, Florian and Pfeiffer, Dorothea and Markower, Alexander and McNeil, C. J.}, title = {Multienzyme biosensors : coupled enzyme reactions and enzyme activation}, year = {1993}, language = {en} } @article{PfeifferSchellerSchubertetal.1993, author = {Pfeiffer, Dorothea and Scheller, Frieder W. and Schubert, Florian and Setz, K.}, title = {Amperometric enzyme electrodes for lactate and glucose determinations in highly diluted and undiluted media}, year = {1993}, language = {en} } @article{SchellerKirsteinSchubertetal.1993, author = {Scheller, Frieder W. and Kirstein, Dieter and Schubert, Florian and Pfeiffer, Dorothea and McNeil, C. J.}, title = {Enzymes in electrochemical biosensors}, year = {1993}, language = {en} } @article{WollenbergerSchubertPfeifferetal.1993, author = {Wollenberger, Ursula and Schubert, Florian and Pfeiffer, Dorothea and Scheller, Frieder W.}, title = {Enhancing biosensor performance using multienzyme systems}, year = {1993}, language = {en} } @phdthesis{Seibert, author = {Seibert, Tanja Stefanie}, title = {The T6P pathway in Solanum tuberosum}, pages = {212}, language = {en} } @phdthesis{Goa, author = {Goa, Yang}, title = {Chloroplast translational regulation during acclimation to low temperature and impact of knockouts of non-essential chloroplast tRNAs on ribosome behavior}, school = {Universit{\"a}t Potsdam}, pages = {124}, language = {en} } @phdthesis{Gulati, author = {Gulati, Sneha}, title = {Impact of individual and combined abiotic and biotic stress on plant performance and bacterial root microbiota of tomato}, address = {Potsdam}, school = {Universit{\"a}t Potsdam}, pages = {XV, 134}, abstract = {Nutzpflanzen sind zunehmend mit sowohl individuellem als auch kombiniertem abiotischem und biotischem Stress konfrontiert, die Wachstum und Ertrag stark beeintr{\"a}chtigen. Pflanzen sind mit einer großen Anzahl an Mikroorganismen assoziiert, die sowohl n{\"u}tzlich als auch pathogen wirken k{\"o}nnen. Aufgrund der positiven Wirkung von n{\"u}tzlichen Mikroorganismen auf Wachstum und Gesundheit von Pflanzen ist dieses Potenzial in nachhaltigen Pflanzenproduktionssystemen zu nutzen. Kenntnisse dar{\"u}ber, wie individueller und kombinierter Stress die Leistung der Pflanze einschließlich deren Mikrobiom beeinflussen, sind derzeit begrenzt. Es stellt sich daher die Frage, wie abiotische Bedingungen (Salzstress, Trockenheit) insbesondere in Kombination mit biotischem Stress (Verticillium dahliae, Fusarium oxysporum) die Mikrobiota der Wurzel beeinflussen und dies die Leistung der Pflanze. Ziel dieser Arbeit war es, das Verst{\"a}ndnis der Auswirkungen von individuellem und kombiniertem biotischem und abiotischem Stress auf die endophytische Mikrobiota der Wurzel und die Leistung der Pflanze zu verbessern. Die Untersuchungen erfolgen an der wirtschaftlich bedeutenden gartenbaulichen Kultur Tomate. Die Struktur der bakteriellen endophytischen Mikrobiota der Tomatenwurzel in Abh{\"a}ngigkeit von individuellem und kombiniertem abiotischem und biotischem Stress wurde mit kulturunabh{\"a}ngigen und -abh{\"a}ngigen Methoden analysiert. Die Ergebnisse der Analysen mittels beider Methoden zeigen, dass sowohl abiotische als auch biotische Stressbedingungen signifikant die Struktur der endophytischen Mikrobiota der Wurzel ver{\"a}ndern und sich dies auf die Produktivit{\"a}t der Pflanze auswirkt. Insgesamt wurden 683 kultivierbare bakterielle Endophyten hinsichtlich ihrer pflanzenwachstumsf{\"o}rdernden (PGP) Eigenschaften in in vitro und in vivo charakterisiert. Im Ergebnis kulturabh{\"a}ngiger Analysen wurden Endophyten mit wiederholt positiver Wirkung auf das Pflanzenwachstum von Tomate unter individuellem und kombiniertem abiotischen und biotischen Stress selektiert. Die Behandlung von Pflanzen mit diesen n{\"u}tzlichen Mikroorganismen reduzierte den negativen Einfluss von Stress auf das Pflanzenwachstum. Im Weiteren k{\"o}nnen diese n{\"u}tzlichen Mikroorganismen zu Produkten f{\"u}r die Nutzung in nachhaltigen Pflanzensystemen entwickelt werden. Dazu sind jedoch weitere Untersuchungen insbesondere unter Feldbedingungen notwendig. Zuk{\"u}nftige Arbeiten sollten sich zudem auf die Verbesserung des Verst{\"a}ndnisses der Funktionen von Endophyten in der Wurzel konzentrieren. Diese Kenntnisse k{\"o}nnten die Entwicklung neuer Strategien f{\"u}r den Pflanzenschutz unterst{\"u}tzen.}, language = {en} } @phdthesis{Mumm, author = {Mumm, Rebekka}, title = {Eat and you should grow}, school = {Universit{\"a}t Potsdam}, pages = {84}, language = {en} } @phdthesis{Colangeli, author = {Colangeli, Pierluigi}, title = {From pond metacommunities to life in a droplet}, school = {Universit{\"a}t Potsdam}, pages = {126}, language = {en} } @phdthesis{Mitrova, author = {Mitrova, Biljana}, title = {Bioelectrochemical investigation of E. coli TMAO reductase and R. capsulatus formate dehydrogenase}, school = {Universit{\"a}t Potsdam}, pages = {105}, language = {en} } @phdthesis{DeCahsan, author = {De Cahsan, Binia}, title = {Introgressive hybridization in northern range margin populations of the European fire-bellied toad (Bombina bombina)}, address = {Potsdam}, school = {Universit{\"a}t Potsdam}, pages = {108}, abstract = {The European fire-bellied toad (Bombina bombina) is regarded as one of the most threatened species of amphibians in central Europe and is particularly affected by environmental perturbations. During the last decades population numbers in Germany have declined drastically due to pollution, eutrophication and habitat fragmentation. Illegal translocations resulted in an introgression from southern genotypes (probably Austrian) into three local Bombina populations (Northern Germany and Southern Sweden) belonging to the northern lineage of the species. Interestingly, these populations show high frequencies of allochthonous (non-local) alleles at multiple loci and outperform the autochthonous populations in terms of their body condition. Over a time period of ten years, I could show that the Southern lineage haplo- and genotypes are still present in the North and that frequencies of introgressed haplotypes in allochthonous populations did not increase over time. However, the introgression itself expanded towards adjacent populations while the overall haplotype diversity has decreased. In contrast, southern lineage genotypes for two candidate genes under selection, the (immunity) MHC class II gene, as well as the (temperature) stress response HSP70 kDa gene, either do not occur at all or only at low frequencies in northern populations. Furthermore, these alleles do not seem to follow the introgression pattern, as they are also present in non-introgressed populations. This thesis tested two possible outcomes of introgressive hybridization in Northern B. bombina populations: (1) local populations (autochthonous) of Bombina bombina are highly adapted to their environments so that introgression of alien genes causes outbreeding depression or (2) local populations of Bombina bombina potentially lack adaptive variation so that introgression of alien genes causes genetic rescue and promotes adaptive change. I found that this unintentional experiment, as a result of illegal translocations imitating introgression of alien genes coming from a southern population (potentially adapted to warmer climate) into a northern lineage (potentially adapted to local pathogens), has increased the genetic diversity and improved fitness in introgressed northern populations, without disrupting local adaptation in the threatened amphibian species B. bombina, favouring the genetic rescue hypothesis. These results and conclusions represent relevant information for future conservation plans, including supportive breeding programmes for fire-bellied toads in Northern Germany and Southern Sweden.}, language = {en} }