Induction ofRhizobium meliloti nodC gene byAlnus incana compounds

1996 ◽  
Vol 36 (5) ◽  
pp. 319-326
Author(s):  
Wanda Małek
Keyword(s):  
Nodc Gene ◽  
Ofrhizobium Meliloti

Effects of aldicarb on the biochemical composition ofRhizobium meliloti

1988 ◽  
Vol 41 (2) ◽  
pp. 286-290
Author(s):  
Alicia Thüar ◽  
Susana B. Rosas ◽  
Nora E. Ghittoni
Keyword(s):  
Biochemical Composition ◽  
Ofrhizobium Meliloti

Novel putative rhizobial species with different symbiovars nodulate Lotus creticus and their differential preference to distinctive soil properties

2020 ◽  
Vol 367 (11) ◽  
Author(s):  
Mokhtar Rejili ◽  
Mohamed Ali BenAbderrahim ◽  
Mohamed Mars ◽  
Janine Darla Sherrier
Keyword(s):  
Phylogenetic Analysis ◽  
Soil Properties ◽  
Phylogenetic Analyses ◽  
Geographical Regions ◽  
Ensifer Meliloti ◽  
Rhizobial Species ◽  
Nodc Gene

ABSTRACT Phylogenetically diverse rhizobial strains endemic to Tunisia were isolated from symbiotic nodules of Lotus creticus, growing in different arid extremophile geographical regions of Tunisia, and speciated using multiloci-phylogenetic analysis as Neorhizobium huautlense (LCK33, LCK35, LCO42 and LCO49), Ensifer numidicus (LCD22, LCD25, LCK22 and LCK25), Ensifer meliloti (LCK8, LCK9 and LCK12) and Mesorhizobium camelthorni (LCD11, LCD13, LCD31 and LCD33). In addition, phylogenetic analyses revealed eight additional strains with previously undescribed chromosomal lineages within the genera Ensifer (LCF5, LCF6 and LCF8),Rhizobium (LCF11, LCF12 and LCF14) and Mesorhizobium (LCF16 and LCF19). Analysis using the nodC gene identified five symbiovar groups, four of which were already known. The remaining group composed of two strains (LCD11 and LCD33) represented a new symbiovar of Mesorhizobium camelthorni, which we propose designating as sv. hedysari. Interestingly, we report that soil properties drive and structure the symbiosis of L. creticus and its rhizobia.

Adsorption ofRhizobium meliloti to alfalfa roots: Dependence on divalent cations and pH

1989 ◽  
Vol 117 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Gustavo Caetano-Anollés ◽  
Antonio Lagares ◽  
Gabriel Favelukes
Keyword(s):  
Divalent Cations ◽  
Ofrhizobium Meliloti

Detection of loci in theleu region ofRhizobium meliloti chromosome

1991 ◽  
Vol 70 (3) ◽  
pp. 203-210 ◽  
Author(s):  
U. G. Sathyanarayana ◽  
S. P. S. Khanuja ◽  
Aqbal Singh ◽  
Sushil Kumar
Keyword(s):  
Ofrhizobium Meliloti

Identification and characterization of insertion sequence ISRm1 in Rhizobium meliloti JJ1c10

1987 ◽  
Vol 33 (4) ◽  
pp. 314-321 ◽  
Author(s):  
Roger Wheatcroft ◽  
Robert J. Watson
Keyword(s):  
High Frequency ◽  
Insertion Sequence ◽  
Symbiotic Nitrogen Fixation ◽  
Rhizobium Meliloti ◽  
Base Pairs ◽  
Target Region ◽  
Meliloti Strain ◽  
Nodc Gene ◽  
Identification And Characterization

ISRm1, an insertion sequence present in Rhizobium meliloti strain 1021, has been identified as the cause of the Nod− phenotypes in two mutants of another strain, JJ1c10. The insertions were found to be at different sites, though only about 100 base pairs apart within the nodC gene. ISRm1 causes no mutations in the nifHDK gene region of strain JJ1c10, as it does at high frequency in strain 1021. In JJ1c10 ISRm1 inserted at high frequency into a region of the genome adjacent to copies of other reiterated DNA segments. The target region was not required for symbiotic nitrogen fixation.

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