Antioxidant defense system in leaves of Indian mustard (Brassica juncea) and rape (Brassica napus) under cadmium stress

2008 ◽  
Vol 31 (2) ◽  
pp. 237-247 ◽  
Author(s):  
Issam Nouairi ◽  
Wided Ben Ammar ◽  
Nabil Ben Youssef ◽  
Douja Daoud Ben Miled ◽  
Mohamed Habib Ghorbal ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Brassica Juncea ◽  
Antioxidant Defense ◽  
Indian Mustard ◽  
Cadmium Stress ◽  
Antioxidant Defense System ◽  
Defense System

EDTA enhanced plant growth, antioxidant defense system, and phytoextraction of copper by Brassica napus L.

2014 ◽  
Vol 22 (2) ◽  
pp. 1534-1544 ◽  
Author(s):  
Ume Habiba ◽  
Shafaqat Ali ◽  
Mujahid Farid ◽  
Muhammad Bilal Shakoor ◽  
Muhammad Rizwan ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Defense System ◽  
Brassica Napus L

scholarly journals Nitric Oxide Pre-Treatment Advances Seed Germination and Alleviates Copper-Induced Photosynthetic Inhibition in Indian Mustard

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 776
Author(s):  
Bilal A. Rather ◽  
Iqbal R. Mir ◽  
Asim Masood ◽  
Naser A. Anjum ◽  
Nafees A. Khan
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Seed Germination ◽  
Antioxidant Defense ◽  
Germination Rate ◽  
Indian Mustard ◽  
Antioxidant Defense System ◽  
Growth Potential ◽  
Defense System ◽  
Pre Treatment

This investigation tested the efficiency of nitric oxide (NO) in alleviation of Cu-induced adverse impacts on seed germination and photosynthesis in Indian mustard (Brassica juncea L.). Pre-treatment of B. juncea seeds with sodium nitroprusside (SNP; NO donor) significantly improved the seed germination rate and also alleviated Cu-accrued oxidative stress. However, in the absence of NO, Cu caused a higher reduction in seed germination rate. The presence of NO strengthened the antioxidant defense system (glutathione reductase, ascorbate peroxidase, and superoxide dismutase) and thereby sustained the lower lipid peroxidation, reduced H2O2 content, and thiobarbituric acid reactive substances in Cu-exposed seeds. NO pre-treated seeds also retained a higher amylase activity and exhibited an improved seed germination rate. This effect of NO under Cu stress was also seen in plants originated from the NO pre-treated seeds, where the role of NO pre-treatment was reflected in the improved photosynthetic potential of B. juncea. Overall, NO pre-treatment not only improved the germination rate in seeds but also carried its effects in the grown seedlings evidenced as improved photosynthesis and growth. Potential mechanisms involved in the action of NO pre-treatment included NO-mediated significant strengthening of the antioxidant defense system and decreases in Cu-caused oxidative stress parameters.

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