Pectin Characteristics Affect Root Growth in Spinach under Salinity

doi:10.3390/plants11223130

	Pectin Characteristics Affect Root Growth in Spinach under Salinity
	Liu, Jia ; Otie, Victoria 1; Matsuura, Asana 2; Junichi, Kashiwagi 3; Irshad, Muhammad 4; Zheng, Yuanrun5 ; Fujimaki, Haruyuki ; An, Ping
	2022
发表期刊	PLANTS-BASEL
卷号	11 期号:22
摘要	In understanding the role of root cell wall mechanisms in plant tolerance to salinity, it is important to elucidate the changes in the pectin composition and physical properties of the cell wall. Two salt-sensitive (Helan 3 and Prius beta) and one salt-tolerant (R7) spinach cultivars were used to investigate the pectin polysaccharides, the characteristics of pectin, including the degree of pectin methy-lesterification, the HG:RG-I ratio, neutral side chains (galactan/arabinangalactan), and elasticity and viscosity parameters in the root elongation zone under salinity. Root growth was inhibited by salinity, whereas the root diameter was thickened in all cultivars. Salinity significantly reduced cell wall extensibility in all cultivars, and increased cell wall viscosity in Helan 3 and R7 relative to Prius beta. Pectin was significantly increased under salinity stress. Cell wall viscosity was affected by pectin due to the molar proportion of uronic acid and/or pectin characteristics (HG:RG-I ratio). The molar proportion of uronic acid in pectin was reduced in Helan 3 and R7 compared with Prius beta. The length and degree of pectin methy-lesterification of neutral side chains were significantly decreased in the R7 cultivar, with no significant changes in the other two cultivars. Demethylation of pectin could alter root growth and boost salt tolerance in the R7 cultivar. In this study, it is shown that cell wall pectin played important roles in regulating the root growth of Spinacia oleracea L. under salinity stress.
关键词	plant cell wall pectin HG:RG-I ratio viscosity Spinacia oleracea salinity stress
学科领域	Plant Sciences
DOI	10.3390/plants11223130
收录类别	SCI
语种	英语
WOS关键词	CELL-WALL ; SALT TOLERANCE ; ARABIDOPSIS-THALIANA ; CELLULOSE ; POLYSACCHARIDE ; PHYSIOLOGY ; CULTIVARS ; MECHANICS ; RESPONSES ; STRESS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000887791100001
出版者	MDPI
文献子类	Article
出版地	BASEL
EISSN	2223-7747
资助机构	tottori university ; Japan Society for the Promotion of Science [26450020]
作者邮箱	an.ping@tottori-u.ac.jp
作品OA属性	Green Published, gold
引用统计	被引频次：2[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/2S10CLM1/28830
专题	中科院北方资源植物重点实验室
作者单位	1.Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori 6800001, Japan 2.Univ Calabar, Fac Agr Forestry & Wildlife Resources Management, Dept Soil Sci, PMB 1115, Calabar 540271, Nigeria 3.Shinshu Univ, Fac Agr, 8304 Minamiminowa Village, Nagano 3994598, Japan 4.Hokkaido Univ, Grad Sch Global Food Resources, Kita Ku, Kita 9,Nishi 9, Sapporo, Hokkaido 0600809, Japan 5.COMSATS Univ Islamabad CUI, Dept Environm Sci, Abbottabad Campus, Abbottabad 22060, Pakistan 6.Chinese Acad Sci, Inst Bot, Key Lab Resource Plants, West China Subalpine Bot Garden, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jia,Otie, Victoria,Matsuura, Asana,et al. Pectin Characteristics Affect Root Growth in Spinach under Salinity[J]. PLANTS-BASEL,2022,11(22).
APA	Liu, Jia.,Otie, Victoria.,Matsuura, Asana.,Junichi, Kashiwagi.,Irshad, Muhammad.,...&An, Ping.(2022).Pectin Characteristics Affect Root Growth in Spinach under Salinity.PLANTS-BASEL,11(22).
MLA	Liu, Jia,et al."Pectin Characteristics Affect Root Growth in Spinach under Salinity".PLANTS-BASEL 11.22(2022).

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