Regulation of nitrogen metabolism in salt tolerant and salt sensitive Frankia strains.

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dc.contributor.authorSrivastava, Amrita
dc.contributor.authorMishra, Arun Kumar
dc.date.accessioned2014-04-30T06:27:26Z
dc.date.available2014-04-30T06:27:26Z
dc.date.issued2014-04
dc.description.abstractEffect of salinity (0, 50, 100, 250, 500 and 750 mM NaCl) was observed on some important physiological parameters of nitrogen metabolism such as nitrate uptake, intracellular and extracellular ammonium status and activities of nitrogenase, nitrate reductase, nitrite reductase and glutamine synthetase among Frankia strains differing in their salt tolerance capacity. Nitrogenase activity closely followed the growth pattern with regular decline on NaCl supplementation. All the other enzymes showed optimum activity at 100 mM and declined further. Co-regulation of the nitrate uptake system and sequential enzyme activities plays a crucial role in governing the nitrogen status of strains during salt stress. HsIi10 experiencing minimum decline in enzyme activities and best possible nitrogen regulation under NaCl replete condition showed adequate nutritional management. Among all the strains, HsIi10 proved to be salt tolerant on account of above features while the salt sensitive strain HsIi8 lacked the ability to regulate various steps of nitrogen metabolism during salinity, and thus Frankia strain HsIi10 can potentially serve as a potential biofertilizer in the saline soil.en_US
dc.identifier.citationSrivastava Amrita, Mishra Arun Kumar. Regulation of nitrogen metabolism in salt tolerant and salt sensitive Frankia strains. Indian Journal of Experimental Biology. 2014 Apr; 52(4): 352-358.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/150366
dc.language.isoenen_US
dc.source.urihttps://nopr.niscair.res.in/handle/123456789/27970en_US
dc.subjectFrankiaen_US
dc.subjectNitrogen metabolismen_US
dc.subjectSalinityen_US
dc.subjectSalt sensitiveen_US
dc.subjectSalt toleranten_US
dc.subject.meshAmmonia --metabolism
dc.subject.meshFrankia --enzymology
dc.subject.meshFrankia --metabolism
dc.subject.meshGlutamate-Ammonia Ligase --metabolism
dc.subject.meshNitrates --metabolism
dc.subject.meshNitrogen --metabolism
dc.subject.meshNitrogenase --metabolism
dc.subject.meshSalinity
dc.subject.meshSalt-Tolerance
dc.subject.meshSodium Chloride --metabolism
dc.titleRegulation of nitrogen metabolism in salt tolerant and salt sensitive Frankia strains.en_US
dc.typeArticleen_US
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