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Isolation of multiple drug resistant and heavy metal resistant stenotrophomonas maltophila strain bn1, a plant growth promoting rhizobacteria, from mangrove associate ipomoea pes-caprae of indian sundarbans
Published in Journal of Pure and Applied Microbiology
Volume: 10
Issue: 4
Pages: 3131 - 3139
During the screening of heavy metal resistant plant growth promoting rhizobacteria of the mangrove associate species Ipomoea pes-caprae of Indian Sundarbans, one multiple heavy metal resistant bacterium was isolated. The strain was identified as Stenotrophomonas maltophila strain BN1at 16S rDNA level. The strain was found to be resistant to 11 different antibiotics including ampicillin, streptomycin, cefuroxime, netillin, penicillin, gentamycin, nitrofurantoin, chloramphenicol, amikacin, amoxyclav, imipenem and could tolerate multiple heavy metals. The scanning electron micrography revealed small rod shaped bacteria and the cell surface forms microspheres. This bacterium was not only positive for various plant growth promoting features like IAA, siderophore and ammonia production but also showed phosphate solubilization and protease production ability. Therefore, dual expressions of antibiotics and heavymetal resistance along with the plant growth promoting properties would make the isolate Stenotrophomonas maltophila strain BN1 ideal candidate strain for bioremediation of heavy metal contaminated sites effected with salinity.
About the journal
JournalJournal of Pure and Applied Microbiology
PublisherJournal of Pure and Applied Microbiology