干旱区生态环境知识资源中心(Arid): Ca and Mg stimulate protein synthesis in maize kernel through the action of endogenous hormones and defense enzymes

Arid

DOI	10.1016/j.plaphy.2023.108280
	Ca and Mg stimulate protein synthesis in maize kernel through the action of endogenous hormones and defense enzymes
	He, Zhaoquan; Shang, Xue; Zhang, Tonghui; Yun, Jianying
通讯作者	He, ZQ
来源期刊	PLANT PHYSIOLOGY AND BIOCHEMISTRY
ISSN	0981-9428
EISSN	1873-2690
出版年	2024
卷号	206
英文摘要	Soil calcium (Ca) and magnesium (Mg) mineral states in rain-fed arid regions of Northwest China are inefficient, and their levels of substitution and water-soluble states are far below the lowest threshold required for maize growth, resulting in frequent physiological diseases, restricting synthesis of kernel protein (CRP). Our study set up different levels of foliar spraying of Ca and Mg fertilizers before maize pollination to examine the response characteristics of physiological and biochemical indicators in kernel, and the driving process of CRP synthesis. The main findings were: (1) Ca and Mg significantly increased the levels of CRP and endogenous hormones, and the activities of defense enzymes and CRP synthesis enzymes, which decreased significantly and stabilized at the maturity stage of maize. (2) The synthesis and accumulation of CRP were synergistically regulated by endogenous hormones, defense enzymes, and CRP synthase enzymes, with the degree of regulation varying with the level of Ca and Mg supplementation. Indole-3-acetic acid (IAA), gibberellin (GA), zeatin riboside (ZR), catalase (CAT), malondialdehyde (MDA), and glutamate dehydrogenase (GDH) were the primary physiological driving indicators of CRP synthesis, with CRP having a significant synergistic relationship with CAT and a remarkable trade-off with other driving indicators. (3) The dominant driving pathway of CRP synthesis was Ca, Mg-IAA or GA or ZR-CAT-GDH-CRP. Ca and Mg positively affected IAA and GA levels, and IAA and GA positively regulated CAT activity. However, CAT negatively regulated GDH levels, causing GDH to negatively influence the synthesis and accumulation of CRP and its components. The findings provide theoretical support for further study of interroot endogenous hormones and soil microbe-driven processes in the regulation of maize quality by Ca and Mg.
英文关键词	Maize Physiological mechanisms Calcium and magnesium Protein synthesis Rain-fed arid regions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001138603000001
WOS关键词	MAGNESIUM ; ACCUMULATION ; POTASSIUM ; NITROGEN ; CALCIUM
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405113
推荐引用方式 GB/T 7714	He, Zhaoquan,Shang, Xue,Zhang, Tonghui,et al. Ca and Mg stimulate protein synthesis in maize kernel through the action of endogenous hormones and defense enzymes[J],2024,206.
APA	He, Zhaoquan,Shang, Xue,Zhang, Tonghui,&Yun, Jianying.(2024).Ca and Mg stimulate protein synthesis in maize kernel through the action of endogenous hormones and defense enzymes.PLANT PHYSIOLOGY AND BIOCHEMISTRY,206.
MLA	He, Zhaoquan,et al."Ca and Mg stimulate protein synthesis in maize kernel through the action of endogenous hormones and defense enzymes".PLANT PHYSIOLOGY AND BIOCHEMISTRY 206(2024).