title: Response of some Calvin cycle enzymes subjected to salinity shock in vitro.
abstract: Leaf enzyme extracts of 10 day old seedlings of horsegram were subjected to NaCl or Na2SO4 treatment in vitro. Salinity shock caused decline in the activities of RuBP carboxylase, R-5-P kinase, R-5-P isomerase and NADP-Gly-3-P dehydrogenase. At low concentrations, Na2SO4 did not alter the activities of R-5-P kinase, R-5-P isomerase and NADP-Gly-3-P dehydrogenase. RuBP carboxylase was found to be more sensitive to salt shock than the other enzymes studied. Further, NaCl was more toxic to the enzyme activities as compared to Na2SO4.
authors.affiliation: Department of Botany, Sri Krishnadevaraya University, Anantapur, India.
authors.forename: C
authors.initials: C
authors.lastname: Sudhakar
authors.forename: S
authors.initials: S
authors.lastname: Ramanjulu
authors.forename: P S
authors.initials: PS
authors.lastname: Reddy
authors.forename: K
authors.initials: K
authors.lastname: Veeranjaneyulu
mesh_terms: D009997:Osmotic Pressure; D018515:Plant Leaves / Q000187:drug effects* / Q000201:enzymology; D012965:Sodium Chloride / Q000494:pharmacology*
chemical_list: D012965:Sodium Chloride