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| Abstract: | Beauveria sp. BTMF S10 isolated from marine sediment produced extracellular L-glutaminase. Maximal L- glutaminase yield (46.9 U/ml) was obtained in a medium supplemented with 1% (w/v) yeast extract and sorbitol, 9% (w/v) sodium chloride and 0.2% (w/v) methionine, initial pH 9.0 and at 27 °C after 108 h. This enzyme was inducible and growth-associated. |
| Description: | World Journal of Microbiology & Biotechnology 15: 751±752, 1999. |
| URI: | http://dyuthi.cusat.ac.in/purl/4247 |
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| Extracellular p ... d from marine sediment.pdf | (70.09Kb) |
| Abstract: | Extracellular L-glutaminase production by Beau6eria sp., isolated from marine sediment, was observed during solid state fermentation using polystyrene as an inert support. Maximal enzyme production (49.89 U:ml) occurred at pH 9.0, 27°C, in a seawater based medium supplemented with L-glutamine (0.25% w:v) as substrate and D-glucose (0.5% w:v) as additional carbon source, after 96 h of incubation. Enzyme production was growth associated. Results indicate scope for production of salt tolerant L-glutaminase using this marine fungus |
| Description: | Process Biochemistry 35 (2000) 705–710 |
| URI: | http://dyuthi.cusat.ac.in/purl/4241 |
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| L-Glutaminase p ... lid state fermentation.pdf | (310.7Kb) |
| Abstract: | The morphological and biochemical response of calli and seedlings of different rice cultivars were compared under acid saline conditions. Calli of both tolerant and sensitive varieties showed severe stress symptoms like browning and necrosis, but the onset of stress symptoms was delayed in Pokkali. Seedlings of Pokkali showed minimal stress symptoms in lower salinities, and curling and senescence of older leaves in higher salinities although plants revived on amelioration of stress. Seedlings of the other varieties showed severe stress symptoms even at low salinities and plant death at higher salinities. Salt stress induced accumulation of the putative osmoprotectant proline in calli and seedlings of all varieties. Proline accumulation was higher in sensitive varieties than in Pokkali. These results indicate that proline accumulation is not directly correlated with salt tolerance in rice. |
| URI: | http://dyuthi.cusat.ac.in/purl/4736 |
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| Proline Accumulation and SaltTolerance in Rice.pdf | (1.866Mb) |
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