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Cell Wall Components and Extensibility Regulate Root Growth in Suaeda salsa and Spinacia oleracea under Salinity

文献类型：期刊论文

作者Liu, Jia1; Shao, Yang2; Feng, Xiaohui3; Otie, Victoria4; Matsuura, Asana5; Irshad, Muhammad6; Zheng, Yuanrun7; An, Ping1
刊名PLANTS-BASEL
出版日期2022-04-01
卷号11期号:7页码:13
关键词cell wall integrity glycophyte halophyte Suaeda salsa Spinacia oleracea salinity stress
DOI10.3390/plants11070900
通讯作者An, Ping(an.ping@tottori-u.ac.jp)
英文摘要Understanding the role of root cell walls in the mechanism of plant tolerance to salinity requires elucidation of the changes caused by salinity in the interactions between the mechanical properties of the cell walls and root growth, and between the chemical composition of the cell walls and root growth. Here, we investigated cell wall composition and extensibility of roots by growing a halophyte (Suaeda salsa) and a glycophyte (Spinacia oleracea) species under an NaCl concentration gradient. Root growth was inhibited by increased salinity in both species. However, root growth was more strongly reduced in S. oleracea than in S. salsa. Salinity reduced cell wall extensibility in S. oleracea significantly, whereas treatment with up to 200 mM NaCl increased it in S. salsa. Meanwhile, S. salsa root cell walls exhibited relatively high cell wall stiffness under 300 mM NaCl treatment, which resist wall deformation under such stress conditions. There was no decrease in pectin content with salinity treatment in the cell walls of the elongation zone of S. salsa roots. Conversely, a decrease in pectin content was noted with increasing salinity in S. oleracea, which might be due to Na+ accumulation. Cellulose content and uronic acid proportions in pectin increased with salinity in both species. Our results suggest that (1) cell wall pectin plays important roles in cell wall extension in both species under salinity, and that the salt tolerance of glycophyte S. oleracea is affected by the pectin; (2) cellulose limits root elongation under saline conditions in both species, but in halophytes, a high cell wall content and the proportion of cellulose in cell walls may be a salt tolerance mechanism that protects the stability of cell structure under salt stress; and (3) the role of the cell wall in root growth under salinity is more prominent in the glycophyte than in the halophyte.
WOS关键词VISCOELASTIC PROPERTIES ; TOLERANCE ; PECTIN ; METABOLISM ; ELASTICITY ; CULTIVARS ; MECHANICS ; CELLULOSE ; STRESS ; NACL
资助项目Japan Society for the Promotion of Science[26450020]
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000781437900001
出版者MDPI
资助机构Japan Society for the Promotion of Science
源URL[http://ir.igsnrr.ac.cn/handle/311030/173802]  
专题中国科学院地理科学与资源研究所
通讯作者An, Ping
作者单位1.Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori 6800001, Japan
2.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11 A Datun Rd, Beijing 100101, Peoples R China
4.Univ Calabar, Fac Agr Forestry & Wildlife Resources Management, Dept Soil Sci, PMB 1115, Calabar, Nigeria
5.Shinshu Univ, Fac Agr, 8304 Minamiminowa Village, Kamiina Cty, Nagano 3994598, Japan
6.COMSATS Univ Islamabad CUI, Dept Environm Sci, Abbottabad Campus, Abbottabad 22060, Pakistan
7.Chinese Acad Sci, Inst Bot, Lab Resource Plants, West China Subalpine Bot Garden, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jia,Shao, Yang,Feng, Xiaohui,et al. Cell Wall Components and Extensibility Regulate Root Growth in Suaeda salsa and Spinacia oleracea under Salinity[J]. PLANTS-BASEL,2022,11(7):13.
APA Liu, Jia.,Shao, Yang.,Feng, Xiaohui.,Otie, Victoria.,Matsuura, Asana.,...&An, Ping.(2022).Cell Wall Components and Extensibility Regulate Root Growth in Suaeda salsa and Spinacia oleracea under Salinity.PLANTS-BASEL,11(7),13.
MLA Liu, Jia,et al."Cell Wall Components and Extensibility Regulate Root Growth in Suaeda salsa and Spinacia oleracea under Salinity".PLANTS-BASEL 11.7(2022):13.

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来源：地理科学与资源研究所

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