文献类型: 外文期刊
作者: Sufian Ikram;Yang Li;Chai Lin;Debao Yi;Wang Heng;Qiang Li;Lu Tao;Yu Hongjun;Jiang Weijie
作者机构:
关键词: Abiotic stress;Antioxidants;Biofortification;Phytohormones;ROS;Selenium
期刊名称: Journal of Plant Physiology
ISSN: 0176-1617
年卷期: 2024 年 296 卷
页码:
收录情况: SCIE(2024版)
摘要: Selenium (Se) is an essential micronutrient for both human and animals. Plants serve as the primary source of Se in the food chain. Se concentration and availability in plants is influenced by soil properties and environmental conditions. Optimal Se levels promote plant growth and enhance stress tolerance, while excessive Se concentration can result in toxicity. Se enhances plants ROS scavenging ability by promoting antioxidant compound synthesis. The ability of Se to maintain redox balance depends upon ROS compounds, stress conditions and Se application rate. Furthermore, Se-dependent antioxidant compound synthesis is critically reliant on plant macro and micro nutritional status. As these nutrients are fundamental for different co-factors and amino acid synthesis. Additionally, phytohormones also interact with Se to promote plant growth. Hence, utilization of phytohormones and modified crop nutrition can improve Se-dependent crop growth and plant stress tolerance. This review aims to explore the assimilation of Se into plant proteins, its intricate effect on plant redox status, and the specific interactions between Se and phytohormones. Furthermore, we highlight the proposed physiological and genetic mechanisms underlying Se-mediated phytohormone-dependent plant growth modulation and identified research opportunities that could contribute to sustainable agricultural production in the future.
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