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Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
Identification of diazotrophs in the culturable bacterial community associated with roots of Lasiurus sindicus, a perennial grass of Thar Desert, India.
Microb. Ecol. 54, 82-90 (2007)
Lasiurus sindicus is a highly nutritive, drought-tolerant, perennial grass that is endemic to the Thar Desert of Rajasthan, India. Analysis of 16S rRNA coding genes of the bacterial isolates enriched in nitrogen-free semisolid medium, from the surface-sterilized roots of L. sindicus, showed predominance of Gram-negative over Gram-positive bacteria. According to comparative sequence analysis of 16S rDNA sequence data, Gram-positive bacteria with low GC content (Staphylococcus warneri and Bacillus sp.) and high GC content (Micrococcus luteus, Microbacterium sp.) were identified. Gram-negative bacteria included Azospirillum sp., Rhizobium sp., Agrobacterium tumefaciens, and Inquilinus limosus (alpha-proteobacteria); Ralstonia sp., Variovorax paradoxus, and Bordetella petrii (beta-proteobacteria); and Pseudomonas pseudoalcaligenes, Stenotrophomonas sp. (gamma-proteobacteria). The occurrence of nifH sequences in Azospirillum sp., Rhizobium sp., and P. pseudoalcaligenes showed the possibility of supplying biologically fixed nitrogen by the root-associated diazotrophs to the host plant.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
0095-3628
e-ISSN
1432-184X
Zeitschrift
Microbial Ecology
Quellenangaben
Band: 54,
Heft: 1,
Seiten: 82-90
Verlag
Springer
Begutachtungsstatus
Peer reviewed
Institut(e)
Research Unit Microbe-Plant Interactions (AMP)