Coronatine alleviates cold stress by improving growth and modulating antioxidative defense system in rice (Oryza sativa L.) seedlings

2021 ◽  
Author(s):  
Tianyu Feng ◽  
Yan Zhang ◽  
Min He ◽  
Mingcai Zhang ◽  
Zhaohu Li ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Cold Stress ◽  
Oryza Sativa L ◽  
Antioxidative Defense ◽  
Defense System ◽  
Antioxidative Defense System

scholarly journals Growth Hormone-like Activities of Organophosphorus Flame Retardants (OPFRs) in growth of Rice (Oryza sativa L.)

2021 ◽  
Author(s):  
Qian Bai ◽  
Haiou Wang ◽  
Wenxiao Zhang ◽  
Bokai Jiang ◽  
Yuqing Ma ◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Flame Retardants ◽  
Oryza Sativa L ◽  
Antioxidative Defense ◽  
Defense System ◽  
Gene Expressions ◽  
Antioxidative Defense System ◽  
Organophosphorus Flame Retardants ◽  
Growth Of Seedlings ◽  
Detoxification Process

Abstract To identify the toxic effect of Organophosphorus Flame Retardants (OPFRs) on plants, six different OPFRs involved in three concentrations (50 µg/L, 100 µg/L and 200 µg/L) were selected to estimate their toxicity to rice growth. The seed germination, seedling growth, OPFRs accumulation and antioxidative defense system were investigated in rice. The results showed that all of OPFRs inhibited the germination of seeds. OPFRs were accumulated in roots and shoots, and the accumulations of OPFRs in roots were higher than in shoots. However, the hormone-like effect of all six OPFRs was found on plants. The growth of seedlings was irrigated by 50 µg/L, 100 µg/L and 200 µg/L OPFRs in our experiment according to fresh weights and lengths of seedlings. And then malondialdehyde (MDA) and antioxidative defense system were impressed after OPFRs exposed 21 d. According to gene expressions of seven antioxidative enzymes at 14 d, most of enzyme expressions were updated to alleviated reactive oxygen species (ROS) by OPFRs exposure. Tris (1, 3-dichloro-2-propyl) phosphate (TDCPP) showed the strongest oxidative toxicity to plants among all of OPFRs. During the early 14 d period, the antioxidant enzymes could play important role in detoxification process. And after 21 d, antioxidants ascorbate (AsA) in roots and glutathione (GSH) in shoots could take over antioxidant enzymes against to OPFRs toxicity.

scholarly journals Influence of long-term cold stress on enzymatic antioxidative defense system in chickpea (Cicer arietinum L.)

2018 ◽  
Vol 71 (3) ◽  
Author(s):  
Valiollah Yousefi ◽  
Jafar Ahmadi ◽  
Davoud Sadeghzadeh-Ahari ◽  
Ezatollah Esfandiari
Keyword(s):  
Enzyme Activity ◽  
Cold Stress ◽  
Antioxidant Enzyme ◽  
Cicer Arietinum ◽  
Antioxidant Enzyme Activity ◽  
Guaiacol Peroxidase ◽  
Antioxidative Defense ◽  
Adaptive Responses ◽  
Defense System ◽  
Antioxidative Defense System

Abiotic stresses such as cold, heat, and drought are the main causes of universal crop losses. Plants have generated adaptive responses which prevent them from oxidative damage caused by environmental stresses. The present research aimed to evaluate the effect of cold stress on lipid peroxidation and antioxidant enzyme activity in the leaves of eight cultivars / advanced lines of chickpea (<em>Cicer arietinum</em> L.). Three-week-old plantlets were subjected to cold stress (0°C) for 24 or 48 hours. Selected antioxidant enzyme activity and oxidative status of chickpea plantlets under cold stress were determined. In most genotypes, catalase and ascorbate peroxidase activities were increased and guaiacol peroxidase activity decreased under stress conditions but the activity of superoxide dismutase remained almost constant. Based on its ranking, <em>Cicer arietinum</em> ‘Saral’, a newly released cold-resistant Iranian chickpea cultivar, had the strongest, and FLIP 05-77C had the weakest antioxidative defense system under low temperature stress.

Influence of Lanthanides on the Antioxidative Defense System in Maize Seedlings Under Cold Stress

2010 ◽  
Vol 142 (3) ◽  
pp. 819-830 ◽  
Author(s):  
Ying Wang ◽  
Min Zhou ◽  
Xiaolan Gong ◽  
Chao Liu ◽  
Mengmeng Hong ◽  
...  
Keyword(s):  
Cold Stress ◽  
Antioxidative Defense ◽  
Maize Seedlings ◽  
Defense System ◽  
Antioxidative Defense System

Development of antioxidative defense system of wheat seedlings in response to high light

1995 ◽  
Vol 95 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Neelam P. Mishra ◽  
Tasneem Fatma ◽  
Gauri S. Singhal
Keyword(s):  
High Light ◽  
Antioxidative Defense ◽  
Defense System ◽  
Wheat Seedlings ◽  
Antioxidative Defense System

The Role of the Antioxidative Defense System in Papulopustular Acne

2001 ◽  
Vol 28 (3) ◽  
pp. 123-127 ◽  
Author(s):  
Pinar Y. Basak ◽  
Fatih Gultekin ◽  
Ibrahim Kilinc
Keyword(s):  
Antioxidative Defense ◽  
Defense System ◽  
Antioxidative Defense System
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