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Early Events in the Azorhizobium Caulinodans—Sesbania Rostrata Symbiosis
1995The symbiotic interaction between the tropical leguminous plant Sesbania rostrata and the bacterium Azorhizobium caulinodans strain ORS571 is in many aspects a unique one (De Bruijn, 1989). In contrast to most legumes that form nitrogen-fixing nodules only on the roots, S. rostrata can be nodulated on the roots and the stem.
P. Mergaert +11 more
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Xylem Colonization of Sesbania Rostrata by Azorhizobium Caulinodans ORS571
1999Benign, non-rhizobial, endophytic bacteria probably exist in the xylem of many healthy plants (Bell et al., 1995; Kloepper et al., 1992), including legumes (Gagne et al., 1987). Agrobacteria, plant pathogens related closely to Rhizobium (Young, 1992), can move through the xylem of the legume Sesbania rostrata (Vlachova et al., 1987).
K. J. O’Callaghan +2 more
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The nodD locus from Azorhizobium caulinodans is flanked by two repetitive elements
Gene, 1995The sequence surrounding the Azorhizobium caulinodans (Ac) regulatory nodD gene was analyzed. Upstream from nodD and in the opposite orientation, two small open reading frames were identified (ORF1 and ORF2). The DNA sequence corresponding to ORF1, termed epsilon 1, is similar to a part of the insertion element IS51 from Pseudomonas savastanoi ...
D, Geelen +3 more
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Structure—Function Relationship of Nod Factors Synthesized by Azorhizobium caulinodans
1998Azorhizobial lipo-chitin oligosaccharide Nod factors are mainly pentamers of β−1,4 linked N-acetylglucosamine residues which are methylated and carbamoylated and which carry a common C18:l, C16:0, or C18:0 fatty acyl chain at the non-reducing end. The reducing end can be either not substituted or glycosylated with a D-arabinose and/or a L-fucose group (
M. Gao +6 more
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Isolation and Characterization of an Oxygen Sensitive Mutant of Azorhizobium caulinodans
Journal of Plant Biochemistry and Biotechnology, 1997An oxygen sensitive mutant of Azorhizobium caulinodans strain IRBG 46 was isolated by NTG mutagenesis. It was defective in N2 fixation under 3% O2 level, while under 1% O2 it was almost as active as the parent strain IRBG 46. The mutant was also found to be a slow grower with reduced respiratory activity, low azide tolerance and no catalase activity ...
A. Das, M. L. Lodha
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A gfp reporter plasmid to visualize Azorhizobium caulinodans during nodulation of Sesbania rostrata
Plasmid, 2004Compared with other labeling techniques, the use of the green fluorescent protein (GFP) is advantageous to visualize bacteria because observations can be performed in real time. This feature is particularly interesting to study invasion events of rhizobia during nodule development on their legume host plant.
Wim, D'Haeze +2 more
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Symbiotic Genes of Azorhizobium Caulinodans, A Bacterium that Nodulates Sesbania Rostrata
1993Azorhlzoblum caullnodans nodulates the root-and stem-located root primordia of the annual tropical legume Sesbania rostrata. The stem nodulation occurs abundantly at predetermined infection sites and is responsible for a high input of fixed nitrogen in the soil when S. rostrata is used as a green manure in rice cultures. We have studied early symbiotic
M. Holsters +5 more
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Regulation of Free-Living and Symbiotic Nitrogen Fixation in Azorhizobium caulinodans
1995Azorhizobium caulinodans ORS571, isolated from stem nodules of Sesbania rostrata, can fix nitrogen in the free-living state (Nif+) and symbiotically (Fix+) (Elmerich et al. 1982; Dreyfus et al. 1988). Signals involved in the regulation of nitrogen fixation are oxygen and fixed nitrogen (Ratet et al. 1989).
P. A. Kaminski +3 more
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Ecological Aspects of Azorhizobium caulinodans in the Rhizosphere of Rice Seedlings
1995The nitrogenase activity of A. caulinodans, as a free living organism, in nitrogen free semi liquid culture medium under normal atmospheric conditions was measured with ARA, at different times after incubation with acetylene. A significant higher activity was observed compared with the blanks, this activity was stable upto 24h incubation.
Catherine Van Nieuwenhove +3 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly