干旱胁迫下豇豆幼苗抗氧化酶活性的研究

Q4 Biochemistry, Genetics and Molecular Biology
D. Jovičić, Z. Nikolić, A. Mikić, B. Milošević, D. Milošević, M. Ignjatov, Dragan Marinkovic
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引用次数: 1

摘要

干旱严重影响植物的正常生长,危及植物的生理生化过程。在不利环境条件的影响下,植物细胞内的抗氧化保护系统无论处于生长发育的哪个阶段都可以被激活。以三种豌豆(V. sativa, V. villosa, V. pannonica)为研究对象,对peg诱导的干旱胁迫进行了研究。抗氧化酶活性:超氧化物歧化酶(SOD, EC 1.15.1.1)、抗坏血酸过氧化物酶(APx, EC 1.11.1.1)和过氧化氢酶(CAT, EC 1)。11. 1. 6)在10 d幼苗的茎和根中测定。在萌发期缺水的情况下,所有被试品种的两个器官的所有抗氧化酶都被激活。SOD和APx的活性在较高的胁迫水平下普遍升高,而CAT酶在所有被试物种中表现出不同的作用模式。本研究结果表明,干旱胁迫导致植物产生氧自由基,从而导致氧化应激。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Antioxidant enzymes activities in Vicia seedlings during drought stress.
Drought greatly affects normal plant growth, endangering physiological and biochemical processes in plants. Under the influence of unfavorable environmental conditions, antioxidant protection systems in plant cell can be activated regardless of the stage of growth and development of plants. The experiment was conducted on three vetches species (V. sativa, V. villosa and V. pannonica) under PEG-induced drought stress. Activity of antioxidant enzymes: superoxide dismutase (SOD, EC 1.15.1.1), ascorbate peroxidase (APx, EC 1.11.1.1) and catalase (CAT, EC 1. 11. 1. 6), was determined in shoots and roots of 10-day-old seedlings. Lack of water during germination period activated all the examined antioxidant enzymes in both organs of all tested Vicia species. The activity of SOD and APx generally increased at higher stress levels, while the enzyme CAT showed different patterns of action in all tested species. The results of this study suggest that drought stress causes the production of oxygen radicals that lead to oxidative stress in plants.
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来源期刊
Ratarstvo i Povrtarstvo
Ratarstvo i Povrtarstvo Agricultural and Biological Sciences-Soil Science
CiteScore
0.80
自引率
0.00%
发文量
4
审稿时长
4 weeks
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