Calcium effects on root cell wall composition and ion contents in two soybean cultivars under salinity stress

doi:10.4141/CJPS2013-291

	Calcium effects on root cell wall composition and ion contents in two soybean cultivars under salinity stress
	An, Ping ; Li, Xiangjun 1; Zheng, Yuanrun2 ; Eneji, A. Egrinya ; Inanaga, Shinobu 5
	2014
发表期刊	CANADIAN JOURNAL OF PLANT SCIENCE
ISSN	0008-4220
卷号	94 期号:4 页码:733-740
摘要	It has been widely suggested that calcium (Ca) application ameliorates salt stress, but characteristic changes in root cell wall due to Ca application under saline conditions are poorly documented. Our objectives were: (1) to determine the effect of Ca on root cell wall composition, using two soybean cultivars differing in sensitivity to salt stress and (2) to understand the relationship between the internal effects of sodium-calcium interaction on the root cell wall. Uniform seedlings were transplanted into mixed solutions of NaCl (0, 40 mM,) and CaCl2 (0, 0.5, 2 mM). Root lengths were measured after an exposure of 14, 24 and 40 h to the treatments and cell wall analysis performed for total sugars, uronic acid and ion contents. Without salinity stress, Ca application caused no significant changes in root growth and cell wall constituents in both cultivars. However, it did ameliorate the decrease in the amount of cell wall under stress, especially the pectin fraction. Both cell wall and cellular Ca2+ and K+ contents were significantly increased by additional Ca2+ under saline condition. Therefore, by applying Ca2+, the maintenance of pectin level and increase in cell wall Ca2+ may contribute to the restoration of root growth under salinity. Calcium application significantly increased the pectin level under salinity and soybean root growth also showed notable restoration. One way Ca ameliorates salt toxicity may be by maintaining the composition of the cell wall. This ameliorative effect was more conspicuous in the salt-tolerant cultivar, Dare, than the salt-sensitive cultivar, Touzan 69.
关键词	Calcium root cell wall soybean salinity
学科领域	Agronomy ; Plant Sciences
DOI	10.4141/CJPS2013-291
收录类别	SCI
语种	英语
WOS关键词	ARABIDOPSIS-THALIANA ; SALT TOLERANCE ; COTTON ROOTS ; PLANTS ; POTASSIUM ; GROWTH ; NACL ; ELONGATION ; ABSORPTION ; TRANSPORT
WOS研究方向	Agriculture ; Plant Sciences
WOS记录号	WOS:000349150900014
出版者	AGRICULTURAL INST CANADA
文献子类	Article
出版地	OTTAWA
EISSN	1918-1833
作者邮箱	aeeneji@yahoo.co.uk
引用统计	被引频次：9[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/2S10CLM1/27277
专题	植被与环境变化国家重点实验室
作者单位	1.Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan 2.Hebei Acad Forestry Sci, Shijiazhuang 050061, Peoples R China 3.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 4.Univ Calabar, Forestry & Wildlife Resources Management, Dept Soil Sci, Calabar, Nigeria 5.Chinese Acad Sci, Inst Genet Dev Biol, Ctr Agr Resources Res, Shijiazhuang, Peoples R China 6.Inst Technol, Saitama 3610038, Japan
推荐引用方式 GB/T 7714	An, Ping,Li, Xiangjun,Zheng, Yuanrun,et al. Calcium effects on root cell wall composition and ion contents in two soybean cultivars under salinity stress[J]. CANADIAN JOURNAL OF PLANT SCIENCE,2014,94(4):733-740.
APA	An, Ping,Li, Xiangjun,Zheng, Yuanrun,Eneji, A. Egrinya,&Inanaga, Shinobu.(2014).Calcium effects on root cell wall composition and ion contents in two soybean cultivars under salinity stress.CANADIAN JOURNAL OF PLANT SCIENCE,94(4),733-740.
MLA	An, Ping,et al."Calcium effects on root cell wall composition and ion contents in two soybean cultivars under salinity stress".CANADIAN JOURNAL OF PLANT SCIENCE 94.4(2014):733-740.

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