Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/23871
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dc.contributor.authorSingh, R K-
dc.date.accessioned2013-11-20T06:03:31Z-
dc.date.available2013-11-20T06:03:31Z-
dc.date.issued2001-08-
dc.identifier.issn0975-1009 (Online); 0019-5189 (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/23871-
dc.description818-820en_US
dc.description.abstractA ciprotloxacin resi stant mutant (CfR) of Rhizobium leguminossarum by phaseoli USDA 2695 which nodulates common bean plants (Phaseolus vulgaris L) was isolated after nitrous acid mutagenesis. Another mutant resistant to nalidixic acid (NalR) was isolated spontaneously. Both mutants showed thermotolerance as evident by their ability to grow at elevated (40°C) temperature, although the wild type (USDA 2695) failed to grow at this temperature. Transformation and plasmid curing experiments suggested the gene(s) controlling thermotolerance (TrR) and resistance to nalidixic acid or cipro tloxacin were located on the main chromosome and not on the plasmids. High frequency of co-transfer of TrR-CrR and TrR-NalR during transformation experiments indicated a close association of these gene(s). Role of DKA gyrase and supercoiling in these thermololerant mutants has been discussed.en_US
dc.language.isoen_USen_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJEB Vol.39(08) [August 2001]en_US
dc.titleGenetics of thermotolerance in ciprofioxacin resistant mutant of Rhizobium leguminosarum bv phaseoli en_US
dc.typeArticleen_US
Appears in Collections:IJEB Vol.39(08) [August 2001]

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