Isolation, characterization and screening of Burkholderia caribensis of rice agro-ecosystems of South Assam, India | Zendy

Deb Roy Biswajit | Zendy; Bibhas Deb | Zendy; Dutta Sharma Gauri | Zendy

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Isolation, characterization and screening of Burkholderia caribensis of rice agro-ecosystems of South Assam, India

Author(s) -

Deb Roy Biswajit,

Bibhas Deb,

Dutta Sharma Gauri

Publication year - 2013

Publication title -

african journal of agricultural research

Language(s) - English

Resource type - Journals

ISSN - 1991-637X

DOI - 10.5897/ajar11.825

Subject(s) - diazotroph , burkholderia , nitrogenase , rhizosphere , 16s ribosomal rna , biology , nitrogen fixation , agronomy , bacteria , genetics

Six isolates of Burkholderia were obtained from rhizosphere soils of rice grown in tropical lowlands of South Assam, India. Among the identified Burkholderia isolates, SDSA-I10/1 has shown higher nitrogen fixing potential and it was selected for 16S rDNA sequencing. The isolate SDSA-I10/1 showed highest resemblance to Burkholderia caribensis MWAP84 (Y17011) and hence, identified as Burkholderia caribensis strain SDSA-I10/1 (GU372342). Inoculation of this strain improved the growth and yield parameters of rice significantly over uninoculated control plants, thus it may be used as indigenous microbial inoculant for intensive rice cropping in tropical lowlands.

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