scholarly journals Effects of drought stress on pigment and protein contents and antioxidant enzyme activities in five varieties of rice (Oryza sativa L.)

2020 ◽  
Vol 49 (4) ◽  
pp. 997-1002
Author(s):  
Shukanta Saha ◽  
Hasna Hena Begum ◽  
Shamima Nasrin ◽  
Rifat Samad
Keyword(s):  
Antioxidant Enzymes ◽  
Drought Stress ◽  
Protein Content ◽  
Chlorophyll A ◽  
Pigment Content ◽  
Antioxidant Enzyme Activities ◽  
Rice Varieties ◽  
Enzymes Activities ◽  
Drought Tolerant ◽  
Antioxidant Enzymes Activities

Drought stress caused the decrease of pigment contents - chlorophyll a, chlorophyll b, chlorophyll a/b ratio, total chlorophyll content and carotenoids content of leaves of five rice varieties (var. BRRI Dhan-30, BRRI Dhan-32, BRRI Dhan-34, BRRI Dhan-38 and BRRI Dhan-56). Among five rice varieties, BRRI Dhan- 56 showed the least decrease of pigment content under stress. It caused the decrease of protein content of leaves of five rice varieties whereas BRRI Dhan-56 showed the least decrease (3.64%) of protein content under stress. On the other hand, drought stress increased CAT and SOD activities in the leaf of five varieties of rice and BRRI Dhan-56 showed the highest increase of CAT (37.67%) and SOD (94.17%) activity under stress. It may be assumed that higher antioxidant enzymes activities (CAT and SOD) and less reduction of protein content were related to the mechanisms of drought tolerance in rice. It is indicated that BRRI Dhan- 56 may be drought tolerant while BRRI Dhan-30, BRRI Dhan-32, BRRI Dhan-34 and BRRI Dhan-38 were drought sensitive rice varieties. Drought tolerant rice variety is selected based on pigment content, protein content and antioxidant enzymes activities (CAT and SOD).

scholarly journals Impacts of drought stress on growth, protein, proline, pigment content and antioxidant enzyme activities in rice (Oryza sativa L. var. BRRI dhan-24)

2020 ◽  
Vol 29 (1) ◽  
pp. 117-123 ◽  
Author(s):  
Shamima Nasrin ◽  
Shukanta Saha ◽  
Hasna Hena Begum ◽  
Rifat Samad
Keyword(s):  
Antioxidant Enzymes ◽  
Drought Stress ◽  
Oryza Sativa L ◽  
Proline Accumulation ◽  
The Other ◽  
Antioxidant Enzyme Activities ◽  
Total Chlorophyll ◽  
Enzymes Activities ◽  
Pigment Contents ◽  
Antioxidant Enzymes Activities

One of the major problems associated with rice cultivation and production is the deficiency of water resources. In here the effect of drought stress on growth, protein-, proline-, pigment contents and antioxidant enzymes activities in rice var. BRRI Dhan-24 was determined and analyzed under drought and wellwatered condition. Drought stress caused the decrease of growth and pigment contents - chlorophyll-a, b, a/b, total chlorophyll and carotenoids content of leaves of rice plants. On the other hand, the accumulation of protein, proline contents and antioxidant enzymes activities was increased under drought stress. It may be suggested that antioxidant enzymes activities and proline accumulation were associated with the growth of the plant and consequently with the mechanisms of drought tolerance in rice. Dhaka Univ. J. Biol. Sci. 29(1): 117-123, 2020 (January)

scholarly journals Effect of Drought Stress on Antioxidant Enzymes Activities and Some Physiological Traits in Chickpea (Cicer Arietinum L.)

2019 ◽  
Vol 11 (30) ◽  
pp. 11-22
Author(s):  
maryam rezaeinia ◽  
Mohammareza Bihamta ◽  
Seyed Ali Peighambari ◽  
Ali Reza Abbsi ◽  
◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Drought Stress ◽  
Cicer Arietinum ◽  
Physiological Traits ◽  
Cicer Arietinum L ◽  
Enzymes Activities ◽  
Antioxidant Enzymes Activities

scholarly journals The Antioxidant Status and Concentrations of Coenzyme Q10 and Vitamin E in Metabolic Syndrome

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Chi-Hua Yen ◽  
Nae-Cherng Yang ◽  
Bor-Jen Lee ◽  
Jui-Yuan Lin ◽  
Simon Hsia ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Antioxidant Enzymes ◽  
Vitamin E ◽  
Coenzyme Q10 ◽  
Antioxidant Status ◽  
Antioxidant Enzyme Activities ◽  
Enzymes Activities ◽  
Blood Biochemical ◽  
Antioxidant Enzymes Activities ◽  
Low Levels

The purpose of this study was to investigate the levels of coenzyme Q10 and vitamin E and the antioxidant status in subjects with metabolic syndrome (MS). Subjects with MS (n=72) were included according to the criteria for MS. The non-MS group (n=105) was comprised of healthy individuals with normal blood biochemical values. The plasma coenzyme Q10, vitamin E concentrations, lipid profiles, and antioxidant enzymes levels (catalase, superoxide dismutase, and glutathione peroxidase) were measured. The subjects with MS had significantly higher concentrations of plasma coenzyme Q10 and vitamin E than those in the non-MS group, but these differences were not significant after being normalized for triglyceride level. The levels of antioxidant enzymes were significantly lower in the MS group than in the non-MS group. The subjects with the higher antioxidant enzymes activities had significant reductions in the risk of MS (P<0.01) after being adjusted for coenzyme Q10 and vitamin E. In conclusion, the subjects with MS might be under higher oxidative stress resulting in low levels of antioxidant enzyme activities. A higher level of antioxidant enzymes activities was significantly associated with a reduction in the risk of MS independent of the levels of coenzyme Q10 and vitamin E.

scholarly journals Antioxidant enzymes activities in Vicia seedlings during drought stress

2018 ◽  
Vol 55 (1) ◽  
pp. 1-5
Author(s):  
Dušica Jovičić ◽  
Zorica Nikolić ◽  
Aleksandar Mikić ◽  
Branko Milošević ◽  
Dragana Milošević ◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Drought Stress ◽  
Enzymes Activities ◽  
Antioxidant Enzymes Activities
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