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Open Access
Isolation, Purification, Characterization And Immobilization Of Microbial Amylase
(Chaudhary Charan Singh Haryana Agricultural University; Hisar, 2010) Nisha Kumari; Jain, Veena
Open Access
active oxygen scavenging system as influenced by NaCl salinization in cotton (gossypium hirsutum)
(CCSHAU, 2006) Nisha Kumari; Talwar, Gurmeet
The present investigation was carried out to investigate the effect of NaCl salinization on plant water status, cell membrane damage, chemical constituents, antioxidative enzymes and metabolites in salt-sensitive (H-1236) and salt-tolerant (H-1226) genotypes of cotton seedlings. LD-50 (lethal dose) level of NaCl was 125 mM. Screening of twenty genotypes were done at 125 mM of NaCl for their NaCl-tolerance. The relative water content and osmotic potential declined significantly with induction of salt stress, though effect was more in sensitive (H-1236). Salt stress increased the content of chemical constituents like carotenoids in both genotypes. There was enhancement in the activities of antioxidant enzymes, however, glutathione reductase showed more increase in salt tolerant genotype. The higher accumulation of H2O2 and malondialdehyde was observed with induction of salt-stress in both the genotypes, but it was more in salt-sensitive genotype as compared to the salt-tolerant. The results presented exhibited that tolerance to salt stress was more in H-1226 (tolerant) as compared to H-1236 (sensitive).