Improving chilling tolerance of peanut seedlings by enhancing antioxidant-modulated ROS scavenging ability, alleviating photosynthetic inhibition, and mobilizing nutrient absorption

IF 4.2 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2024-04-10 DOI:10.1111/plb.13643
J. Dong, H. Zhang, X. Ai, Q. Dong, X. Shi, X. Zhao, C. Zhong, H. Yu
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引用次数: 0

Abstract

Abstract Image

Abstract Image

通过增强抗氧化剂调节的 ROS 清除能力、减轻光合作用抑制和促进营养吸收,提高花生秧苗的耐寒能力
花生生产受到气候变化的威胁。早春低温对幼苗造成的损害会限制产量。花生幼苗对寒冷胁迫的适应性仍不清楚。了解花生如何获得耐寒性至关重要。我们评估了寒冷胁迫对花生幼苗生长和恢复的影响。我们比较并分析了不同寒冷程度下的生物特征、抗氧化剂、光合作用、生化和生理反应以及养分吸收。与对寒冷敏感的 FH18 相比,寒冷胁迫对耐寒 NH5 的影响较小,这与 ROS 积累减少、抗坏血酸过氧化物酶活性和可溶性糖含量较高、可溶性蛋白质含量较低以及胁迫期间养分含量减少较少有关。去除冷胁迫后,FH18 的 O2 和 H2O2 积累显著减少,从而降低了光合作用、养分吸收和运输。清除 ROS 可减少寒冷胁迫造成的损害,使养分重新动员,提高耐寒性,并在去除寒冷胁迫后恢复植物功能。这些发现为花生幼苗耐寒性的针对性研究提供了参考,并为基于生物信息学的花生耐寒机制研究奠定了基础。
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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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