| Abstrakt: |
Lasiurus scindicus Henrard is an endemic and naturally grown in arid region of north-western part of Rajasthan state because of its drought tolerance, however, limited information is available for its responses to salinity . To investigate these mechanisms, seeds of L.sindicus were germinated in different level of NaCl (25, 50 and 100mM). Seven days old seedlings were used for estimation of membrane stability, antioxidant system and proline accumulation. Increasing level of NaCl caused reduction in membrane stability index (MSI) and protein content while increased the accumulation of malondialdehyde (MDA) content. All levels of NaCl increased the activities of antioxidant enzymes of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) and non enzymatic antioxidant Ascorbate(AsA) and phemnols content, however the changes depending on applied concentration of NaCl. Apart from the activation of antioxidant sytem, accumulation of proline with increasing concentration of NaCl, might play important role in salt stress tolerance of the L. sindicus at seedling stage. [ABSTRACT FROM AUTHOR] |
