Abstract：
:Native perennial legume Adesmia bicolor reveals characteristics that are key to securing persistence under grazing. Literature on the diversity and symbiotic effectiveness of indigenous rhizobia-nodulating A. bicolor in central Argentina is limited. The purpose of this study was therefore to determine phenotypic and genotypic variability as well as biological N-fixation effectiveness in rhizobia isolated from A. bicolor nodules. To this end, repetitive genomic regions were analyzed using ERIC primers. In the greenhouse, plants were grown under a (i) N-fertilized treatment, (ii) N-free control treatment, and (iii) rhizobia inoculation treatment. Dry weight and N-content were analyzed. All isolates belonged to Rhizobium genus and showed high symbiotic effectiveness. The N-content/subterranean N-content ratio in aerial and subterranean parts of inoculated plants was higher than that observed in N-fertilized plants during the vegetative stage. Results from this study demonstrate that symbiosis between native rhizobial strains and A. bicolor is very effective.
journal_name
Curr Microbioljournal_title
Current microbiologyauthors
Bianco L,Angelini J,Fabra A,Malpassi Rdoi
10.1007/s00284-012-0260-ysubject
Has Abstractpub_date
2013-02-01 00:00:00pages
174-84issue
2eissn
0343-8651issn
1432-0991journal_volume
66pub_type
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