Modulatory responses of physiological and biochemical status are related to drought tolerance levels in peanut cultivars

IF 4.2 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2024-11-14 DOI:10.1111/plb.13740
M. V. Checchio, A. L. Bacha, W. C. Carrega, G. da Silveira Sousa Júnior, P. L. da Costa Aguiar Alves, P. L. Gratão
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引用次数: 0

Abstract

Abstract Image

生理和生化状态的调节反应与花生栽培品种的耐旱水平有关。
花生(Arachis hypogaea L.)是世界上第四大油料作物,但其种植受需水量波动的影响。目前对不同栽培品种的耐旱性以及植物旱后恢复的生理机制的研究还不足以筛选出耐旱栽培品种。我们根据生理和生化状况,评估了不同花生栽培品种对水分亏缺和随后补水的耐受性。分析了气体交换、光合色素、Fv/Fm、MDA、H2O2 和抗氧化酶活性。干旱胁迫和补水引发了不同基因型的色素、Fv/Fm、气体交换和 H2O2 的明显变化,所有处于胁迫下的栽培品种的 MDA 都有所增加。根据多元分析,"IAC Sempre Verde "被确定为对干旱最敏感的品种,而 "IAC OL3"、"IAC 503 "和 "IAC OL6 "的生理反应和抗氧化活性的变化与其各自的耐受水平相关。值得注意的是,'IAC OL3'具有更高的WUE和更强的酶防御能力,因此被归类为最耐旱的品种。上述研究结果表明,抗氧化代谢是植物在补水后恢复的一个重要因素。我们的研究为花生栽培品种的抗氧化和生理反应提供了深入见解,可为选育耐旱基因型的育种计划提供支持。为了更好地了解这些品种的耐旱性,尤其是通过这些数据与作物产量影响的相关性,今后应开展实地研究。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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