Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza)

Chemosphere ◽  
2007 ◽  
Vol 67 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Feng-Qin Zhang ◽  
You-Shao Wang ◽  
Zhi-Ping Lou ◽  
Jun-De Dong
Keyword(s):  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Antioxidative Enzymes ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Kandelia Candel ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Plant ◽  
Leaves And Roots ◽  
Plant Seedlings

The effect of multiple heavy metals on ascorbate, glutathione and related enzymes in two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza)

2010 ◽  
Vol 39 (1) ◽  
Author(s):  
Guo-Yong Huang ◽  
You-Shao Wang ◽  
Cui-Ci Sun ◽  
Jun-De Dong ◽  
Zong-Xun Sun
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Kandelia Candel ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Plant ◽  
Multiple Heavy Metals ◽  
Plant Seedlings

The effect of multiple heavy metals on ascorbate, glutathione and related enzymes in two mangrove plant seedlings (In this study, the effect of multiple heavy metal stress on ascorbate (AsA), glutathione (GSH) and related enzymes was investigated in the leaves, stems and roots of

scholarly journals Role of nitric oxide in improving seed germination and alleviation of copper-induced photosynthetic inhibition in Indian mustard

2019 ◽  
Author(s):  
Bilal A. Rather ◽  
Iqbal R. Mir ◽  
Asim Masood ◽  
Naser A. Anjum ◽  
Nafees A. Khan
Keyword(s):  
Nitric Oxide ◽  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Antioxidant Enzymes ◽  
Seed Germination ◽  
Crop Production ◽  
Germination Rate ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Mustard Plant

AbstractHeavy metal stress limits crop production through its effects on seed germination and photosynthesis. Nitric oxide (NO), a versatile signaling molecule, plays a significant role in heavy metal stress tolerance. In the present investigation, the efficacy of NO application in the alleviation of copper (Cu) induced adverse impact on seed germination and photosynthesis of mustard plant (Brassica juncea L.) was evaluated. Pretreatment with NO donor sodium nitroprusside (SNP), significantly improved seed germination and alleviated Cu-accrued oxidative stress in B. juncea seeds. However, in the absence of NO, Cu showed a higher reduction in seed germination rate. Further, NO modulated the activities of antioxidant enzymes and sustained the lower level of lipid peroxidation by reducing H2O2, and thiobarbituric acid reactive substances (TBARS), thereby elevated the antioxidative capacity in Cu-exposed seeds. Seeds pretreated with NO also retained higher amylase activities for the proper seed germination when compared with control. NO mitigated Cu toxicity through an improved antioxidant system, and reducing Cu-induced accumulation of reactive oxygen species (ROS), reduction in lipid peroxidation improving photosynthetic efficiency and growth of the mustard plant. It may concluded that NO improved amylase activity, modulated activity of antioxidant enzymes, and enhanced the germination rate seeds under Cu stress, thereby improved photosynthesis and growth.

scholarly journals Lipid peroxidation in plant cells, its physiological role and changes under heavy metal stress

2011 ◽  
Vol 76 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Ewa Skórzyńska-Polit
Keyword(s):  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Plant Species ◽  
Plant Cells ◽  
Physiological Role ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Cytotoxic Effects ◽  
Plant Organ

Lipid peroxidation, which is a natural and essential process, can occur in a non-enzymatic and/or enzymatic way in plant cells. Some of its products have cytotoxic effects on cells, but others function as plant effectors. The lipid peroxidation in plants exposed to heavy metal stress depends on the metal, plant organ, plant species and its genotype.

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