Sodium silicate accelerates suberin accumulation at wounds of potato tuber by inducing phenylpropanoid pathway and fatty acid metabolism during healing
文献类型： 外文期刊
作者： Han, Ye 1 ; Yang, Ruirui 1 ; Xu, Juanni 2 ; Wang, Qihui 1 ; Yin, Yan 3 ; Long, Haitao 1 ; Xue, Sulin 1 ; Prusky, Dov 4 ; Bi, Yang 1 ;
作者机构： 1.Gansu Agr Univ, Coll Food Sci & Engn, Lanzhou 730070, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Dept Vegetable Res, Lasa 850000, Peoples R China
3.Lanzhou Agr Sci & Technol Res Extens Ctr, Lanzhou 730070, Peoples R China
4.Agr Res Org, Dept Postharvest Sci Fresh Produce, IL-7505101 Rishon Leziyyon, Israel
关键词： Potato tuber; Sodium silicate; Wound healing; Suberin; Fatty acid metabolism; Phenylpropanoid pathway
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.7； 五年影响因子：6.4 ）
ISSN： 0981-9428
年卷期： 2024 年 216 卷
页码：
收录情况： SCI
摘要： Although soluble silicate was reported to accelerate wound healing in muskmelon fruit through encouraging the deposition of lignin or free fatty acids, whether sodium silicate affects the biosynthesis, cross-linking and transport of suberin monomers during potato wound healing remains unknown. In this study, sodium silicate upregulated the expression and activity of 4-coumarate: coenzyme A ligase (4CL), phenylalanine ammonia lyase (PAL), and promoted the synthesis of phenolic acids (caffeic acid, p-coumaric acid, cinnamic acid, sinapic acid, and ferulic acid) in tuber wounds. Meanwhile, sodium silicate upregulated the expression of glycerol-3- phosphate acyltransferase ( StGPAT ), fatty acyl reductase ( StFAR ), long-chain acyl-CoA synthetase ( StLACS ), (3-ketoacyl-CoA synthase ( StKCS ), and cytochrome P450 ( StCYP86A3 3), and thus increased the levels of a, w-diacids, w-hydroxy acids, and primary alcohols in wounds. Sodium silicate also induced the expression of w-hydroxy acid/fatty alcohol hydroxycinnamoyl transferase ( StFHT ), ABC transporter ( StABCG ) , and promoted the deposition of suberin in wound surface, hence reducing tuber disease index and weight loss during healing. Taken together, sodium silicate may accelerate suberin accumulation at potato tubers wound through inducing the phenylpropanoid pathway and fatty acid metabolism.
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