Evolutionary dynamics of insertion sequences in relation to the evolutionary histories of the chromosome and symbiotic plasmid genes of Rhizobium etli populations [PDF]
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
GuaB Activity Is Required in Rhizobium tropici During the Early Stages of Nodulation of Determinate Nodules but Is Dispensable for the Sinorhizobium meliloti–Alfalfa Symbiotic Interaction [PDF]
The guaB mutant strain Rhizobium tropici CIAT8999-10T is defective in symbiosis with common bean, forming nodules that lack rhizobial content. In order to investigate the timing of the guaB requirement during the nodule formation on the host common ...
Aguilar, Orlando Mario+4 more
core +4 more sources
A field experiment was conducted to evaluate yield, yield components, and some qualitative traits of chickpea (Cicer arietinum L.) cultivars under nitrogen fertilizers and weed control in dryland conditions of Khorramabad during the 2017 - 2018 growing ...
Sajad KORDI+2 more
doaj +1 more source
Higher diversity of Rhizobium leguminosarum biovar viciae populations in arable soils than in grass soils [PDF]
The bacterial genetic diversity after long-term arable cultivation was compared with that under permanent grassland using replicated paired contrasts, Pea-nodulating Rhizobium leguminosarum populations were sampled from pairs of arable and grass sites at
Palmer, K M, Young, J P W
core +2 more sources
This study investigated the impact of soil properties under greenhouse conditions on the growth and productivity of two chickpea (Cicer arietinum) genotypes (V1 and V2) using two distinct soils collected from Marchouch and Beni Mellal sites.
Sara Fahde+7 more
doaj +1 more source
Expression of Rhizobium meliloti nod genes in Rhizobium and Agrobacterium backgrounds [PDF]
Rhizobium meliloti nod genes are required for the infection of alfalfa. Induction of the nodC gene depends on a chemical signal from alfalfa and on nodD gene expression. By using a nodC-lacZ fusion, we have shown that the induction of the R. meliloti nodC gene and the expression of nodD occur at almost normal levels in other Rhizobium backgrounds and ...
John T. Mulligan+2 more
openaire +3 more sources
Test of Host Sanction Hypothesis in Soybean Plants Co-inoculated with Nitrogen Fixing and Non-fixing Bradyrhizobium japonicum [PDF]
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
plasmids and Host-range in Rhizobium leguminosarum and Rhizobium phaseoli [PDF]
Summary: Rhizobium phaseoli strain 1233 forms nitrogen-fixing nodules on Phaseolus vulgaris and produces a brown pigment (probably melanin) in plate culture. This strain contains two plasmids of molecular weight about 200 × 106. Spontaneous deletions in the smaller plasmid abolished pigment production and the ability to nodulate Phaseolus beans ...
J. E. Beringer+2 more
openaire +2 more sources
Roles of Predicted Glycosyltransferases in the Biosynthesis of the Rhizobium etli CE3 O Antigen [PDF]
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
The use of microorganisms as bio-fertilizers in the cultivation of white lupine
The agricultural usability of bio-fertilizers, particularly including microbiological seed vaccines meet the recommendations for integrated protection/cultivation applicable in Poland.
Sulewska Hanna+3 more
doaj +1 more source