کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2063293 1076665 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phaseolus vulgaris seed-borne endophytic community with novel bacterial species such as Rhizobium endophyticum sp. nov.
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Phaseolus vulgaris seed-borne endophytic community with novel bacterial species such as Rhizobium endophyticum sp. nov.
چکیده انگلیسی

The bacterial endophytic community present in different Phaseolus vulgaris (bean) cultivars was analyzed by 16S ribosomal RNA gene sequences of cultured isolates derived from surface disinfected roots and immature seeds. Isolated endophytes from tissue-macerates belonged to over 50 species in 24 different genera and some isolates from Acinetobacter, Bacillus, Enterococcus, Nocardioides, Paracoccus, Phyllobacterium, and Sphingomonas seem to correspond to new lineages. Phytate solubilizing bacteria were identified among Acinetobacter, Bacillus and Streptomyces bean isolates, phytate is the most abundant reserve of phosphorus in bean and in other seeds. Endophytic rhizobia were not capable of forming nodules. A novel rhizobial species Rhizobium endophyticum was recognized on the basis of DNA–DNA hybridization, sequence of 16S rRNA, recA, rpoB, atpD, dnaK genes, plasmid profiles, and phenotypic characteristics. R. endophyticum is capable of solubilizing phytate, the type strain is CCGE2052 (ATCC BAA-2116; HAMBI 3153) that became fully symbiotic by acquiring the R. tropici CFN299 symbiotic plasmid.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Systematic and Applied Microbiology - Volume 33, Issue 6, October 2010, Pages 322–327
نویسندگان
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