气候变化领域集成服务门户(CCPortal): Peptide signaling for drought-induced tomato flower drop

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DOI	10.1126/science.aaz5641
	Peptide signaling for drought-induced tomato flower drop
	Reichardt S.; Piepho H.-P.; Stintzi A.; Schaller A.
发表日期	2020
ISSN	0036-8075
起始页码	1482
结束页码	1485
卷号	367 期号:6485
英文摘要	The premature abscission of flowers and fruits limits crop yield under environmental stress. Drought-induced flower drop in tomato plants was found to be regulated by phytosulfokine (PSK), a peptide hormone previously known for its growth-promoting and immune-modulating activities. PSK formation in response to drought stress depends on phytaspase 2, a subtilisin-like protease of the phytaspase subtype that generates the peptide hormone by aspartate-specific processing of the PSK precursor in the tomato flower pedicel. The mature peptide acts in the abscission zone where it induces expression of cell wall hydrolases that execute the abscission process. Our results provide insight into the molecular control of abscission as regulated by proteolytic processing to generate a small plant peptide hormone. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	mitogen activated protein kinase peptide hormone phytaspase 2 phytosulfokine unclassified drug abscission aspartic acid crop yield drought stress enzyme activity flower fruit gene expression hormone peptide abscission Arabidopsis Article bioassay cell separation controlled study cytokine production down regulation drought environmental stress enzyme activity enzyme specificity ERF4 gene ERT10 gene flower hydrolysis hydrophobicity IAA3 gene immunomodulation molecular dynamics nonhuman peptide signaling PK7 gene plant development plant genome priority journal productivity protein cleavage protein degradation protein expression protein function protein processing regulator gene signal transduction tomato TPRP gene Lycopersicon esculentum
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133599
推荐引用方式 GB/T 7714	Reichardt S.,Piepho H.-P.,Stintzi A.,et al. Peptide signaling for drought-induced tomato flower drop[J]. Science,2020,367(6485).
APA	Reichardt S.,Piepho H.-P.,Stintzi A.,&Schaller A..(2020).Peptide signaling for drought-induced tomato flower drop.,367(6485).
MLA	Reichardt S.,et al."Peptide signaling for drought-induced tomato flower drop".367.6485(2020).