Variation in replicon numbers and rearrangements is common among azospirillum strains, and characterization of these naturally occurring differences can improve our understanding of genome evolution. The rhizosphere bacterium azospirillum amazonense associates with plant roots to promote plant growth. Apr 08, 2020 biochemical assays to determine azospirillum spp. Apr 20, 2020 pdf research on azotobacter chroococcum spp. Jul 02, 2019 biochemical assays to determine azospirillum spp. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Azospirillum is a gramnegative, microaerophilic, nonfermentative and nitrogenfixing bacterial genus from the family of rhodospirillaceae. Mar 18, 2020 biochemical assays to determine azospirillum spp. May 01, 2020 biochemical assays to determine azospirillum spp.
Janssens laboratory of genetics, katholieke universiteit leuven, kard. Network of scientific journals from latin america, the caribbean, spain and portugal. Bacteria with the ability to grow on nitrogenfree media and with nitrogenase activity under aerobic or microaerobic conditions were isolated from sugarcane roots collected from four different agricultural locations in granada spain. Thus, the enrichment factor of the method was more than 160fold. Jun 22, 2019 biochemical assays to determine azospirillum spp.
Azospirillum, auxins and combined nitrogen on the growth of the roots. Azospirillum cultures are useful for the cereals and cash crops viz. Ims was also more efficient at recovery of added azospirilla from soil. Azospirillum, a freeliving nitrogenfixing bacterium closely. Azospirillum lipoferum, is a free living, gram positive, plantgrowthpromoting aproteobacteria, capable of affecting the growth and yield of numerous plant species, many of agronomic and ecological significance. Characterization and effect of azotobacter, azospirillum. Following ims, azospirillum colonies comprised between 30 and 50% of colonies on the cra plates. Surface characteristics of azospirillum brasilense.
Full text get a printable copy pdf file of the complete article 425k, or click on a page image below to browse page by page. Characterization of native strains of azospirillum spp. Isolates were gram negative rods and were identified as azotobacter chroococcum and azospirillum brasilense. Root growth that was inhibited by al toxicity, decreased the symbiotic capability of azos. Azospirillum represents the best characterized genus of plant growthpromoting rhizobacteria. Polyhydroxyalcanoates of strains of azospirillum spp. We performed an in silico comparative genomic analysis to understand the.
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