Dopamine Alleviates Hydrocarbon Stress in Brassica oleracea through Modulation of Physio-Biochemical Attributes and Antioxidant Defense Systems
文献类型： 外文期刊
作者： Ahmad, Aqeel 1 ; Khan, Waheed Ullah 2 ; Shah, Anis Ali 3 ; Yasin, Nasim Ahmad 4 ; Ali, Aamir 5 ; Rizwan, Muhammad 6 ;
作者机构： 1.Guangdong Acad Agr Sci, Guangdong Key Lab New Technol Res Vegetables, Guangzhou 510640, Peoples R China
2.Islamia Univ Bahawalpur, Univ Coll Agr & Environm Sci, Dept Environm Sci, Bahawalpur, Pakistan
3.Univ Narowal, Dept Bot, Narowal, Pakistan
4.Univ Punjab, SSG, RO-2, Lahore, Pakistan
5.Univ Sargodha, Dept Bot, Sargodha, Pakistan
6.Govt Coll Univ Faisalabad, Dept Environm Sci & Engn, Faisalabad 38000, Pakistan
7.China Med Univ, Dept Biol Sci & Technol, Taichung 40402, Taiwan
关键词： Antioxidant enzymes; Brassica oleracea; Crude oil; Dopamine; Stress
期刊名称：CHEMOSPHERE （ 影响因子：5.778； 五年影响因子：5.705 ）
ISSN： 0045-6535
年卷期： 2021 年 270 卷
页码：
收录情况： SCI
摘要： Hydrocarbon stress has become one of the most restrictive factors for crop choice and productivity in most parts of the world. Dopamine (DA) has positively influenced the metabolic, physiological and biochemical activities besides the growth of plants under numerous abiotic stress conditions. The current study was performed to analyze the potential of DA to alleviate hydrocarbon stress and improve growth of Brassica oleracea plants. Hydrocarbon stress in plants was induced by growing in 5% and 10% crude oil contaminated soil. Crude oil stressed plants exhibited reduced growth besides decreased level of photosynthetic pigments and gas exchange attributes. Moreover, oil stressed plants showed elevated level of hydrogen peroxide (H2O2), electrolyte leakage (EL), malondialdehyde (MDA) and superoxide radical (O2-). However, exogenous application of 50, 100 and 200 mu mol L-1 DA improved photosynthesis, shoot and root dry weight of B. oleracea seedlings growing in hydrocarbon amended soil. Additionally, DA100 treatments improved non-enzymatic and enzymatic antioxidants of treated seedlings. Our results demonstrate that increased gas exchange attributes, modulation of osmoregulators and improved activity of the antioxidative enzymes alleviated hydrocarbon stress in DA supplemented B. oleracea plants. Consequently, the first time observed ameliorative role of DA in hydrocarbon stress opens a new arena for application of this dynamic biomolecule for sustainable crop production. (c) 2020 Elsevier Ltd. All rights reserved.
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