INFLUENCE OF SEED TREATMENT WITH UV-C ON SALINE STRESS TOLERANCE IN GREEN BEANS (Phaseolus vulgaris L.)
Aboul Fotouh, Mohammad; Moawad, Farouk Guindi; El-Naggar, Hamdi Aly; Tag El-Din, Mamdouh Abo Mosallam; Sharaf Eldeen, Hany Abdel Khaleq;
Abstract
In the present investigation, germinated green bean seeds were
exposed to UV-C (254 nm) for periods of 7, 15, 30 and 60 min, then
grown plants were subjected to saline stress (50 mM NaCl) as a
challenge. Tolerance to saline stress was evaluated by determination of
fresh weight and dry weight of both shoots and roots. Also, biochemical
changes associated with UV-C induced resistance were investigated by
determination of lipid peroxidation, proline concentration and antioxidant
enzymes activities (SOD, CAT, G-POD and APX) in leaves and roots.
Results showed that plants grown from UV treated seeds were less
affected by saline stress which was obvious in increased fresh and dry
weights of shoots and roots as compared with control. However, MDA
showed higher levels in leaves and roots of plants grown from UV treated
seeds. Also, UV seed treatments led to significant increases in proline
concentration in leaves and roots of grown plants under saline or non
saline conditions which contributed to protection from osmotic shock.
Antioxidant enzymes (SOD, CAT, G-POD and APX) exhibited
higher activities in leaves and roots of plants grown from UV treated
seeds. Such effect was more pronounced in roots than leaves. Generally,
it could be concluded that treatment of green bean seeds with UV-C
induced plant tolerance to saline stress via activation of antioxidant
system.
exposed to UV-C (254 nm) for periods of 7, 15, 30 and 60 min, then
grown plants were subjected to saline stress (50 mM NaCl) as a
challenge. Tolerance to saline stress was evaluated by determination of
fresh weight and dry weight of both shoots and roots. Also, biochemical
changes associated with UV-C induced resistance were investigated by
determination of lipid peroxidation, proline concentration and antioxidant
enzymes activities (SOD, CAT, G-POD and APX) in leaves and roots.
Results showed that plants grown from UV treated seeds were less
affected by saline stress which was obvious in increased fresh and dry
weights of shoots and roots as compared with control. However, MDA
showed higher levels in leaves and roots of plants grown from UV treated
seeds. Also, UV seed treatments led to significant increases in proline
concentration in leaves and roots of grown plants under saline or non
saline conditions which contributed to protection from osmotic shock.
Antioxidant enzymes (SOD, CAT, G-POD and APX) exhibited
higher activities in leaves and roots of plants grown from UV treated
seeds. Such effect was more pronounced in roots than leaves. Generally,
it could be concluded that treatment of green bean seeds with UV-C
induced plant tolerance to saline stress via activation of antioxidant
system.
Other data
Title | INFLUENCE OF SEED TREATMENT WITH UV-C ON SALINE STRESS TOLERANCE IN GREEN BEANS (Phaseolus vulgaris L.) | Authors | Aboul Fotouh, Mohammad ; Moawad, Farouk Guindi ; El-Naggar, Hamdi Aly ; Tag El-Din, Mamdouh Abo Mosallam ; Sharaf Eldeen, Hany Abdel Khaleq | Keywords | UV radiation, Saline stress, Lipid peroxidation, Green bean, Antioxidant system | Issue Date | 2014 | Publisher | Journal of biological chemistry and environmental sciences | Source | Aboul Fotouh, M.M.; F.G. Moawad; H.A. El-Naggar; M.A. Tag El-din and H.A. Sharaf Eldeen (2014). Influence of seed treatment with UV-C on saline stress tolerance in green beans (Phaseolus vulgaris, L.). J. Biol. Chem. Environ. Sci. 9(2): 391-414. | Journal | Journal of biological chemistry and environmental sciences |
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