Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"bacteroid"”.
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Physiological response of Rhizobium leguminosarum during bacteroid development
… and develop into N2 fixing specialists known as bacteroids. During bacteroid development, rhizobia must adapt to the nodule environment, consisting of reactive oxygen species, low oxygen, antimicrobial secondary metabolites, low pH and in some nodules, antimicrobial peptides. This study offers a …
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Genetic and Environmental Modulation of the Chickpea - Mesorhizobium Symbiosis
… dynamic of chickpea varieties, nodulation and bacteroid morphology under different water regimes. Experiment 3 and 4 investigated the effects of drought and herbivory on chickpea growth and defence and explored the trade-offs between exudation of organic acids and growth. Experiment 1. The …
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Escherichia coli and Rhizobium leguminosarum response mechanisms to sub-lethal 2,4-dichlorophenoxyacetic acid
… changes in vitro, which were similar in shape to bacteroids isolated from plant nodules, implying that these changes may be related to bacteroid differentiation required for nitrogen fixation. In E. coli, 2,4-D altered biofilm formation and induced a filamentous phenotype in the lab strain and a …
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Global analysis of the transcriptional regulation of Sinorhizobium meliloti cell cycle progression and study of cell cycle regulation during symbiosis with Medicago sativa
… is a striking cellular differentiation (termed bacteroid differentiation), which includes changes in membrane permeability, cell elongation and branching, endoreduplication of the genome and loss of reproductive capacity and therefore a significant deviation from the free-living cell cycle …
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Physiologische und genetische Charakterisierung der Gamma-Aminobutyrat-(GABA)-Aminotransferase in Rhizobium leguminosarum bv. viciae VF39
… with Pisum sativum, gabT was induced during bacteroid differentiation and strongly expressed in the symbiotic zone. However, the PH10 mutant formed normal nitrogen fixing nodules. The above mentioned gabR open reading frame was analysed for being involved in gabT regulation, because of its …
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The nature of host plant recruitment by the sensory repertoire of Sinorhizobium meliloti
… the soil and rhizosphere or as a differentiated bacteroid inside root nodules of the legume genera Medicago, Melilotus, and Trigonella. It exists in symbiosis when inside a host plant and will fix gaseous N2 into ammonium for the plant. In return, a population of the bacteria is harbored inside …