Effectiveness of nitrogen fixation in rhizobia
The effectiveness of rhizobia in symbiosis with legumes is reviewed, with references from older and most recent literature. Summary Biological nitrogen fixation in rhizobia occurs primarily in root or stem nodules and is induced by the bacteria present in legume plants.
Kristina Lindström +1 more
wiley +1 more source
A nonpolar mutation was made in the oac2 gene of Azorhizobium caulinodans. oac2 is an ortholog of the Salmonella typhimurium rfbD gene that encodes a dTDP-L-rhamnose synthase. The knockout of oac2 changed the lipopolysaccharide (LPS) pattern and affected
Mengsheng Gao +4 more
doaj +1 more source
Identification of essential amino acids in the Azorhizobium caulinodans fucosyltransferase NodZ. [PDF]
ABSTRACTThenodZgene, which is present in various rhizobial species, is involved in the addition of a fucose residue in an α1-6 linkage to the reducingN-acetylglucosamine residue of lipo-chitin oligosaccharide signal molecules, the so-called Nod factors. Fucosylation of Nod factors is known to affect nodulation efficiency and host specificity. Despite a
Chazalet V +3 more
europepmc +4 more sources
Molecular and functional characterization of the Azorhizobium caulinodans ORS571 hydrogenase gene cluster [PDF]
In this work, we report the cloning and sequencing of the Azorhizobium caulinodans ORS571 hydrogenase gene cluster. Sequence analysis revealed the presence of 20 open reading frames hupTUVhypFhupSLCDFGHJK hypABhupRhypCDEhupE. The physical and genetic organization of A.
Cecilia, Baginsky +4 more
openaire +2 more sources
Immunolocalization of antioxidant enzymes in high-pressure frozen root and stem nodules of Sesbania rostrata [PDF]
34 Pags.- 7 Figs.- 1 Tabl. The definitive version is available at: http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1469-8137The activities and localizations of superoxide dismutases (SODs) were compared in root and stem nodules of the semi-aquatic ...
Becana Ausejo, Manuel +4 more
core +2 more sources
ATP production during dissimilatory nitrate reduction in Azorhizobium caulinodans IRBG 46 [PDF]
In Azorhizobium caulinodans IRBG 46 grown microaerobically in culture solution with nitrate as sole source of nitrogen, almost all the activity (>95%) of nitrate reductase (NR) was localized in the particulate fraction (P 250), while total activity of nitrite reductase (NiR) was present in the soluble fraction.
K Siva Raju, N.D Sharma, M.L Lodha
openaire +2 more sources
Comparative genomics of Aeschynomene symbionts : insights into the ecological lifestyle of nod-independent photosynthetic Bradyrhizobia [PDF]
Tropical aquatic species of the legume genus Aeschynomene are stem- and root-nodulated by bradyrhizobia strains that exhibit atypical features such as photosynthetic capacities or the use of a nod gene-dependent (ND) or a nod gene-independent (NI ...
Béna, Gilles +9 more
core +4 more sources
Rhizobial Chemotaxis and Motility Systems at Work in the Soil
Bacteria navigate their way often as individual cells through their chemical and biological environment in aqueous medium or across solid surfaces. They swim when starved or in response to physical and chemical stimuli.
Samuel T. N. Aroney +2 more
doaj +1 more source
Nicotinatfermentation in Eubacterium barkeri [PDF]
Aus EcoRI- und BamHI/BglII-Phagen-Genbänken von Eubacterium barkeri wurde mit Hilfe Digoxigenin-markierten homologen DNA-Sonden, direkter genomischer Sequenzierung und Seegene Speedwalking ein Gencluster von 23 kbp kloniert, das für die Enzyme der ...
Al Hapel, Ashraf, Buckel, W. (Prof. Dr.)
core +1 more source
The NodC protein of Azorhizobium caulinodans is an N-acetylglucosaminyltransferase. [PDF]
Nod factors are signal molecules produced by Azorhizobium, Bradyrhizobium, and Rhizobium species that trigger nodule formation in leguminous host plants. The backbone of Nod factors consists of a beta-1,4-N-acetylglucosamine oligosaccharide from which the N-acetyl group at the nonreducing end is replaced by a fatty acid.
Geremia, R. +4 more
openaire +4 more sources

