4.7 Article

CSN improves seed vigor of aged sunflower seeds by regulating the fatty acid, glycometabolism, and abscisic acid metabolism

期刊

JOURNAL OF ADVANCED RESEARCH
卷 33, 期 -, 页码 1-13

出版社

ELSEVIER
DOI: 10.1016/j.jare.2021.01.019

关键词

Abscisic acid; Aged seeds; CSN; Fatty acid; Seed vigor; Sunflower

资金

  1. Key Research and Development Program of Zhejiang Province [2019C02004]

向作者/读者索取更多资源

The study found that compound sodium nitrophenolate (CSN) significantly increased the germination rate and seedling emergence rate of aged sunflower seeds. Biochemical analysis showed that CSN treatment significantly enhanced the sucrose and fructose contents in aged sunflower seeds during early germination period. Enzyme activity analysis revealed that CSN treatment remarkably up-regulated the activities of several critical enzymes related to triacylglycerol hydrolysis.
Introduction: Sunflower seeds possess higher oil content than do cereal crop seeds. Storage of sunflower seeds is accompanied by loss of seed vigor and oxidation of storage and membrane lipids. Objectives: This study first reported that compound sodium nitrophenolate (CSN), a new plant growth modulator, improved the germination and seedling emergence of aged sunflower seeds. The present study provide a future reference as to the potential applications of CSN and the regulation mechanism of exogenous substances in increasing aged crop seed vigor. Methods: Phenotypic analysis was performed to investigate the effect of CSN on germination and seedling emergence from naturally-and artificially-aged sunflower seeds. The biochemical and enzyme activity analysis were conducted to test the CSN-induced effect on glycometabolism, fatty acid and abscisic acid metabolism. Meanwhile, gene expression analysis was carried out to detect the changes in the transcription level of sunflower seeds during early germination period after CSN treatment. Results: CSN application significantly increased the germination rate and seedling emergence rate of sunflower seeds under natural and artificial aging. Biochemical analysis indicated that, CSN treatment significantly enhanced the sucrose and fructose contents in aged sunflower seeds during early germination period. Moreover, the contents of several different fatty acids in CSN-treated sunflower seeds also significantly increased. Enzyme activity analysis revealed that CSN treatment remarkably up-regulated the activities of several critical enzymes related to triacylglycerol hydrolysis. Consequently, the transcription levels of the above key enzymes-related synthetic genes were also significantly up-regulated in CSN treatment. Furthermore, CSN treatment significantly decreased abscisic acid (ABA) content through the regulation of the gene expressions and activities of metabolism related-enzymes. Conclusion: Taken together, the contribution of CSN to the improvement of aged sunflower seed germination and seedling emergence might be closely related to the fatty acid, glycometabolism, and ABA metabolism. (C) 2021 The Authors. Published by Elsevier B.V. on behalf of Cairo University.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据