Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings

doi:10.1016/j.plaphy.2018.05.022

	Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings
	Hao, Hai-Ping ; Li, Hui ; Jiang, Chuang-Dao ; Tang, Yu-Dan ; Shi, Lei4
	2018
发表期刊	PLANT PHYSIOLOGY AND BIOCHEMISTRY
ISSN	0981-9428
卷号	129 页码:71-76
摘要	Na+ distribution is one of the most important strategies for plant resistance to salt stress. The way of Na+ compartmentation in different aged leaves has been controversial, especially at the cell and sub-cellular level. The roles that Na+ and K+/Na+ play the key role in photosynthesis need to be further verified. In this study, using two cucumber cultivars Cucwnis sativus L. cv. zhongnong 8 (ZN8, relatively salt tolerant) and Cucwnis sativus L.cv. Jinchun 4 (JC4, salt sensitive) as experiment material, we analyzed the mode of ion compartmentation of Na+ in organelles in different aged leaves and determined which factors (the organelles' Na+ or K+/Na+) affect leaf photosynthesis, using high-pressure freezing and freeze-substitution, Ultrathin sectioning technique and X-ray. The main results: 1. The sub-cellular trends of Na+ accumulation was cell wall > vacuole > cytoplasm > chloroplasts; 2. The Na+ accumulation in cytoplasm and chloroplasts was similar in different aged leaves and in seedlings of different salt tolerance cultivars; 3. The K+/Na+ ratio is the main factor that affects the photosynthesis of the same aged leaves in our experiment. A weak capacity for ion compartmentation may be an important reason leading to salt sensitivity.
关键词	Cucumber Salt stress Photosynthesis Micro-analysis Ion distribution
学科领域	Plant Sciences
DOI	10.1016/j.plaphy.2018.05.022
收录类别	SCI
语种	英语
WOS关键词	WATER RELATIONS ; BARLEY LEAVES ; K+ NUTRITION ; SALINITY ; ACCUMULATION ; NA+ ; TOLERANCE ; GROWTH ; LEAF ; COMPARTMENTATION
WOS记录号	WOS:000439683200007
出版者	ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
文献子类	Article
出版地	ISSY-LES-MOULINEAUX
EISSN	1873-2690
资助机构	Chinese Academy of SciencesChinese Academy of Sciences [KFZD-SW-313]
作者邮箱	Haohaiping2014@126.com ; lihuibjfu@126.com ; jcdao@ibcas.ac.cn ; tangyudan@ibcas.ac.cn ; shilei@ibcas.ac.cn
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20462
专题	中科院北方资源植物重点实验室
作者单位	1.[Hao, Hai-Ping 2.Li, Hui 3.Jiang, Chuang-Dao 4.Tang, Yu-Dan 5.Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Hao, Hai-Ping,Li, Hui,Jiang, Chuang-Dao,et al. Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2018,129:71-76.
APA	Hao, Hai-Ping,Li, Hui,Jiang, Chuang-Dao,Tang, Yu-Dan,&Shi, Lei.(2018).Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings.PLANT PHYSIOLOGY AND BIOCHEMISTRY,129,71-76.
MLA	Hao, Hai-Ping,et al."Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings".PLANT PHYSIOLOGY AND BIOCHEMISTRY 129(2018):71-76.

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