Year: 1992
Type: article
Abstract: Effects of iso-osmotic levels of salts (NaCl, CaCl2, Na2SO4) and PEG-6000 on the activity of hydrolytic and nitrogen assimilatory enzymes in pea embryo axis and coty ledon were studied. The activity of nitrate reductase and nitrite reductase in embryo axis and cotyledon and the activity of protease and α-amylase in cotyledon decreased with decreasing medium osmotic potential as compared to control at all the stages of seedling growth. The activity of protease and amylase increases with increasing levels of stress in embryo axis. Sodium chloride induced, stress had more deleterious effects on the activity of nitrate reductase, nitrite reductase and αamylase followed by other salts and PEG-6000. On the other hand, CaCl2 induced salt stress was more depressive for protease activity. The maximum increase in the activity of protease and amylase was observed in embryo axis at higher concentration of salts and PEG-6000.
Source: Biologia Plantarum
DOI: 10.1007/bf02923591
Authors: M. Singh, B. B. Singh
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W2020967969