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Apical-root apoplastic acidification affects cell wall extensibility in wheat under salinity stress

文献类型：期刊论文

作者Shao, Yang; Feng, Xiaohui5; Nakahara, Hiroki; Irshad, Muhammad4; Eneji, A. Egrinya; Zheng, Yuanrun1; Fujimaki, Haruyuki; An, Ping
刊名PHYSIOLOGIA PLANTARUM
出版日期2021
卷号173期号:4页码:1850-1861
ISSN号0031-9317
DOI10.1111/ppl.13527
文献子类Article
英文摘要Plant salt tolerance is associated with a high rate of root growth. Although root growth is governed by cell wall and apoplastic pH, the relationship between these factors in the root elongation zone under salinity stress remains unclear. Herein, we assess apoplastic pH, pH- and expansin-dependent cell wall extensibility, and expansin expression in the root elongation zone of salt-sensitive (Yongliang-15) and -tolerant (JS-7) cultivars under salinity stress. A six-day 80 mM NaCl treatment significantly reduced apical root apoplastic pH in both cultivars. Using a pH-dependent cell wall extensibility experiment, we found that, under 0 mM NaCl treatment, the optimal pH for cell wall loosening was 6.0 in the salinity-tolerant cultivar and 4.6 in the salinity-sensitive cultivar. Under 80 mM treatment, a pH of 5.0 mitigated the cell wall stiffness caused by salinity stress in the salinity-tolerant cultivar but promoted cell wall stiffening in the salinity-sensitive cultivar. Salinity stress altered expansin expression and differentially affecting cell wall extensibility under pH 5.0 and 6.0. TaEXPA8 might be relative to cell wall loosening at pH 5.0, whereas TaEXPA5 relative to cell wall loosening at pH 6.0. These results elucidate the relationship between expansins and cell wall extensibility in the root elongation zone, with important implications for enhancing plant growth under salinity stress.
学科主题Plant Sciences
出版地HOBOKEN
电子版国际标准刊号1399-3054
WOS关键词LOW WATER POTENTIALS ; LEAF APOPLAST ; TRANSIENT ALKALINIZATION ; EXPANSIN GENE ; SALT STRESS ; GROWTH ; PH ; ELONGATION ; EXPRESSION ; EXTENSION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000693393600001
出版者WILEY
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26377]  
专题中科院北方资源植物重点实验室
作者单位1.Univ Calabar, Dept Soil Sci, Fac Agr Forestry & Wildlife Resources Management, Calabar, Nigeria
2.Chinese Acad Sci, Inst Bot, Key Lab Resource Plants, Beijing, Peoples R China
3.COMSATS Inst Informat Technol, Dept Environm Sci, Abbottabad, Pakistan
4.Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Key Lab Agr Water Resources, Shijiazhuang, Hebei, Peoples R China
5.Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori 6800001, Japan
推荐引用方式
GB/T 7714		 Shao, Yang,Feng, Xiaohui,Nakahara, Hiroki,et al. Apical-root apoplastic acidification affects cell wall extensibility in wheat under salinity stress[J]. PHYSIOLOGIA PLANTARUM,2021,173(4):1850-1861.
APA Shao, Yang.,Feng, Xiaohui.,Nakahara, Hiroki.,Irshad, Muhammad.,Eneji, A. Egrinya.,...&An, Ping.(2021).Apical-root apoplastic acidification affects cell wall extensibility in wheat under salinity stress.PHYSIOLOGIA PLANTARUM,173(4),1850-1861.
MLA Shao, Yang,et al."Apical-root apoplastic acidification affects cell wall extensibility in wheat under salinity stress".PHYSIOLOGIA PLANTARUM 173.4(2021):1850-1861.

入库方式： OAI收割

来源：植物研究所

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