RHIZOBIUM-MELILOTI
Extended Region of Nodulation Genes in Rhizobium meliloti 1021. II. Nucleotide Sequence, Transcription Start Sites and Protein Products
... 1987 Transcription of Rhizobium meliloti nodulation genes: identification o f a nodD transcription initiation site in vitro and. in Vivo[r] ...
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Antagonistic activity between bacillus subtilis, pseudomonas sp. rc, azospirillum brasilense, rhizobium meliloti and certain fungal pathogens under laboratory conditions
... The principa This study conducted the tests in vitro with Bacillus subtilis, Pseudomonas sp. RC, Azospirillum brasilense and Rhizobium meliloti against Bipolaris spicifera, Curvularialunata, Fusarium spp., ...
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CORRELATION BETWEEN MAP POSITION AND PHENOTYPE OF CTI MUTANTS IN THE C CISTRON OF RHIZOBIUM MELILOTI PHAGE 16—3
... Nine temperature-sensitive clear mutations (Cti) in the C cistron (coding for the repressor protein) of Rhizobium meliloti temperate phage 16-3 were characterized accordin[r] ...
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Multiple Genetic Controls on Rhizobium meliloti syrA, a Regulator of Exopolysaccharide Abundance
... symbionts. Rhizobium meliloti mutants defective in EPS production fail to invade alfalfa nod- ...R. meliloti is likely controlled at several ...of Rhizobium NGR234 and R. meliloti , and ...
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Regulation of syrM and nodD3 in Rhizobium meliloti.
... bromo-4-chloro-3-indolyI-~-D-galactopyranoside (Xgal). LONG, unpublished data). Such colonies were tested for @-glucuronidase activity using a fluorescent assay adapted for [r] ...
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Escherichia coli BdcA controls biofilm dispersal in Pseudomonas aeruginosa and Rhizobium meliloti
... cultures were used to form biofilms of R. meliloti and P. aeruginosa. After 24 h, BdcA was added to these bio- films by conjugating pMMB206-BdcA from E. coli DH5a/ pMMB206-BdcA/pRK2013; E. coli DH5a/ ...
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A family of activator genes regulates expression of Rhizobium meliloti nodulation genes.
... John T. We have examined three genes in R. meliloti which have nodD activity and sequence homology. The n o d D l gene product activates expression of the nodABC operon, a[r] ...
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METHODS FOR ANALYSIS OF THE C CISTRON OF TEMPERATE PHAGE 16–3 OF RHIZOBIUM MELILOTI
... HNO,, nitrous acid-induced mutant; Sp, spontaneous mutant; n.t., not tested; *, this character- ization of mutants based on fine-structure mapping experiments (OROSZ, ROSTAS [r] ...
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Analysis of a 1600-kilobase Rhizobium meliloti megaplasmid using defined deletions generated in vivo.
... To facilitate the characterization of pRmeSU47b, we recently constructed a genetic map of this mega- plasmid by generating a collection of strains carrying transductiona[r] ...
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Rhizobium meliloti genes involved in sulfate activation: the two copies of nodPQ and a new locus, saa.
... We have confirmed that the double mutants still have A T P sulfurylase activity (our manuscript in preparation). Second, we found a me- thionine or cysteine requiring auxo[r] ...
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Second site mutations specifically suppress the Fix- phenotype of Rhizobium meliloti ndvF mutations on alfalfa: identification of a conditional ndvF-dependent mucoid colony phenotype.
... To determine if the sfx-1 locus cloned in plasmid pTH56 would suppress the ndvFlow osmolarity mucoid phenotype, pTH56 was mated into the 12-kb ndvF de- letion strain Rm[r] ...
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Extended Region of Nodulation Genes in Rhizobium meliloti 1021. I. Phenotypes of Tn5 Insertion Mutants
... Mutagenesis of pRmJT5 revealed several segments in which transposon insertion causes delay in nodulation, and/or marked reduction of the number of nodules formed on host alfa[r] ...
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Diversity of Sinorhizobium meliloti from the Central Asian Alfalfa Gene Center
... Sino- rhizobium meliloti and Sinorhizobium medicae (16, 17), the latter mainly associated with annual medics around the Med- ...S. meliloti strain 1021 has been determined ...
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Influence of Air SO2 Pollution on Antioxidant Systems of Alfalfa Inoculated with Rhizobium.
... been reported (Moini et al., 2011) and native strain of Rhizobium meliloti was extracted from roots of this plants. For this purpose, alfalfa roots were sterilized with 70% ethanol and were washed with ...
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The complete genome sequence of Ensifer meliloti strain CCMM B554 (FSM-MA), a highly effective nitrogen-fixing microsymbiont of Medicago truncatula Gaertn
... Sinorhizobium) meliloti and Ensifer medicae, and with certain Ensifer fredii strains and Rhizobium mongolense ...E. meliloti and ...E. meliloti strain 1021 (with the reference gen- ome and ...
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Genome Wide Sensitivity Analysis of the Microsymbiont Sinorhizobium meliloti to Symbiotically Important, Defensin Like Host Peptides
... S. meliloti competitiveness during exposure to the NCR247 peptide and polymyxin B ...S. meliloti resulting in an average insertion density of approximately 23 insertions per 1,000 bp (19, ...
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RAPD CHARACTERIZATION OF RHIZOBIUM LEGUMINOSARUM
... specificity. Rhizobium invades roots of legumes and forms nodules on the ...of Rhizobium can fix 50-200kg nitrogen /ha/year in leguminous ...of Rhizobium depends upon the specific falconoid secreted ...
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Evolution of a multi-step phosphorelay signal transduction system in Ensifer: recruitment of the sigma factor RpoN and a novel enhancer-binding protein triggers acid-activated gene expression
... Most Ensifer strains are comparatively acid sensitive, compromising their persistence in low pH soils. In the acid-tolerant strain E. medicae WSM419, the acid-activated expression of lpiA is essential for enhancing ...
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Identification of strains of Rhizobium leguminosarum
... The phylogeny produced from the 16S sequences also indicated genetic some diversity amongst isolates. The main difference was isolate 52 was not a Rhizobium sp. but a massilia sp. with minor variation in the ...
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Formulation of Vegetable Compost for Growth Enhancement of Vigna radiata – A Sustainable Approach towards Organic Farming
... Environmental pollution is the major threat confronting the world and the rampant use of chemical fertilizers and pesticides can contribute to the deterioration of the environment. This ill- practice can lead to loss of ...
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