干旱区生态环境知识资源中心(Arid): Effects of salt stress on seed germination and respiratory metabolism in different Flueggea suffruticosa genotypes

Arid

DOI	10.7717/peerj.15668
	Effects of salt stress on seed germination and respiratory metabolism in different Flueggea suffruticosa genotypes
	Xu, Ningwei; Lu, Bin; Wang, Yang; Yu, Xiaoyue; Yao, Nan; Lin, Qijuan; Xu, Xingyou; Lu, Bingshe
通讯作者	Lu, BS
来源期刊	PEERJ
ISSN	2167-8359
出版年	2023
卷号	11
英文摘要	The selection and utilization of ornamental plants that are highly tolerant to salt are helpful for landscape construction and the ecological protection of coastal and arid areas. To evaluate salt tolerance, one of the most used methods is the observation of seed germination under salt stress. Therefore, this work aimed to evaluate the influence of different concentrations of NaCl in water absorption, germination, and respiratory metabolism in seeds of different Flueggea suffruticosa genotypes. P2 and P27, salt -sensitive and salt-tolerant line s of F. suffruticosa, were chosen for treatment with 0, 40, 80, 120, 160, 200, and 240 mM NaCl. F. suffruticosa under salt stress exhibited inhibition of seed germination. The seeds of F. suffruticosa have different times for the physiological phases of water absorption with different NaCl concentrations. Salt stress retarded the seed water absorption process, and it depended on seed genotypes for F. suffruticosa. Soluble sugars accumulated in both P2 and P27 under salt stress. Meanwhile, the activities of hexokinase, 6-phosphofructokinase, pyruvate kinase, pyruvate dehydrogenase, citrate synthase, and glucose-6-phosphate dehydrogenase were overall increased in P27 after salt treatment, which caused increases in pyruvic acid and citric acid. The citrate synthase and glucose-6-phosphate dehydrogenase activities decreased in P2. These results suggest that the respiratory metabolism of salt-tolerant F. suffruticosa was enhanced, compared with the salt-sensitive line, to ameliorate the repression of seed germination under salt stress. The different changes in respiratory metabolism could influence the degree of salt tolerance.
英文关键词	Flueggea suffruticosa Salt stress Germination Water absorption Respiratory metabolism
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001116608600005
WOS关键词	TOLERANCE ; WHEAT ; DEHYDROGENASE ; MECHANISM ; ARABIDOPSIS ; ALKALOIDS ; RESPONSES ; ENZYMES ; GENE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397972
推荐引用方式 GB/T 7714	Xu, Ningwei,Lu, Bin,Wang, Yang,et al. Effects of salt stress on seed germination and respiratory metabolism in different Flueggea suffruticosa genotypes[J],2023,11.
APA	Xu, Ningwei.,Lu, Bin.,Wang, Yang.,Yu, Xiaoyue.,Yao, Nan.,...&Lu, Bingshe.(2023).Effects of salt stress on seed germination and respiratory metabolism in different Flueggea suffruticosa genotypes.PEERJ,11.
MLA	Xu, Ningwei,et al."Effects of salt stress on seed germination and respiratory metabolism in different Flueggea suffruticosa genotypes".PEERJ 11(2023).