Results 11 to 20 of about 86,787 (237)

Diversity of Sinorhizobium meliloti from the Central Asian Alfalfa Gene Center [PDF]

open access: yes, 2002
Sinorhizobium meliloti was isolated from nodules and soil from western Tajikistan, a center of diversity of the host plants (Medicago, Melilotus, and Trigonella species).
Andronov, E.E.   +6 more
core   +1 more source

Genetic Transformation in Rhizobium [PDF]

open access: yesJournal of General Microbiology, 1969
SUMMARY: Mutants of ground nut (Rhizobium cowpea group) strain gr3 were isolated using ultraviolet radiation and N-methyl-N'-nitrosoguanidine (NTG) as mutagenic agents. An adenine-requiring mutant was used as the recipient and its wild type as the donor in transformation studies. Initially minimal medium supplemented with 2 μg. adenine/ml. was used for
J L, Raina, V V, Modi
openaire   +2 more sources

Roles of Predicted Glycosyltransferases in the Biosynthesis of the Rhizobium etli CE3 O Antigen [PDF]

open access: yes, 2013
The Rhizobium etli CE3 O antigen is a fixed-length heteropolymer. The genetic regions required for its synthesis have been identified, and the nucleotide sequences are known.
Noel, K. Dale   +2 more
core   +2 more sources

Evolutionary dynamics of insertion sequences in relation to the evolutionary histories of the chromosome and symbiotic plasmid genes of Rhizobium etli populations [PDF]

open access: yes, 2010
Insertion sequences (IS) are mobile genetic elements that are distributed in many prokaryotes. In particular, in the genomes of the symbiotic nitrogen-fixing bacteria collectively known as rhizobia, IS are fairly abundant in plasmids or chromosomal ...
Bustos, Patricia   +7 more
core   +2 more sources

Symbiotic and genetic diversity of Rhizobium galegae isolates collected from the Galega orientalis gene center in the Caucasus [PDF]

open access: yes, 2003
This paper explores the relationship between the genetic diversity of rhizobia and the morphological diversity of their plant hosts. Rhizobium galegae strains were isolated from nodules of wild Galega orientalis and Galega officinalis in the Caucasus ...
Andronov, E.E.   +9 more
core   +2 more sources

Test of Host Sanction Hypothesis in Soybean Plants Co-inoculated with Nitrogen Fixing and Non-fixing Bradyrhizobium japonicum [PDF]

open access: yes, 2015
Aims: We tested the proposed mechanism for potential sanctions, that the plant would reduce viability of non-fixing rhizobia inside nodules, performing viable Bradyrhizobium japonicum counts from co-occupied and single-occupied nodules in co-inoculated ...
Bedmar, Eulogio   +2 more
core   +1 more source

Extracellular Polysaccharides of Rhizobium [PDF]

open access: yesJournal of General Microbiology, 1959
SUMMARY: The extracellular polysaccharides of seventeen strains (four species) of Rhizobium were studied chromatographically. The seven strains from lucerne (R. meliloti) produced polysaccharides which contained glucose but consistently lacked glucuronic acid. The remaining ten strains, which were isolated from pea (R.
B A, HUMPHREY, J M, VINCENT
openaire   +2 more sources

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

open access: yesAdvanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma   +11 more
wiley   +1 more source

Draft Genome Sequence of Rhizobium rhizogenes Strain ATCC 15834. [PDF]

open access: yes, 2014
Here, we present the draft genome of Rhizobium rhizogenes strain ATCC 15834. The genome contains 7,070,307 bp in 43 scaffolds. R. rhizogenes, also known as Agrobacterium rhizogenes, is a plant pathogen that causes hairy root disease.
Brady, Siobhan M   +2 more
core   +1 more source

Pectolytic enzymes in Rhizobium [PDF]

open access: yesApplied and Environmental Microbiology, 1978
A sensitive pectin agar plate assay was used to demonstrate low levels of pectolytic enzymes in infective and noninfective strains of Rhizobium. The possible relation of this characteristic to legume infection is discussed.
D H, Hubbell   +2 more
openaire   +2 more sources

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