Regulation of rice sucrose transporter 4 gene expression in response to insect herbivore chewing. Issue 1 (1st January 2019)

• Record Type: Journal Article
• Authors: Chang, Yu-An; Dai, Nai-Chiang; Chen, Huai-Ju; Tseng, Chien-Hao; Huang, Shih-Ting; Wang, Shu-Jen
• Is Part Of: Journal of plant interactions. Volume 14:Issue 1(2019)
• Page Start: 525
• Page End: 532
• Publication Date: 2019-01-01
• Subjects: Abscisic acid -- herbivory -- hydrogen peroxide -- jasmonic acid -- mechanical wounding -- sucrose transporter; Plant ecophysiology -- Periodicals; Plants -- Periodicals; Toxins -- Periodicals; 581.7
• DOI: 10.1080/17429145.2019.1662099
• Languages: English
• ISSNs: 1742-9145

Abstract

ABSTRACT: Sucrose is an important carbon source for plant tissue repairing and also a signal involved in defense responses to against insect herbivores. Allocation of sucrose toward to undamaged tissues is an herbivory tolerance mechanism. Sucrose transporters (SUTs) are key factors to control sucrose flow in plants. In this study, herbivory effects caused by rice leaffolder [ Cnaphalocrocis medinalis (Guenée)] on OsSUT4 expressions were investigated in rice plants, and the results showed OsSUT4 expression was significantly upregulated by larvae infestation and mechanical wounding. The wounding-induced OsSUT4 expression was not systemically demonstrated in undamaged leaves. The larval chewing-induced OsSUT4 expression was obviously reduced by blocking jasmonic acid (JA) and abscisic acid (ABA) biosynthesis. In addition to JA and ABA, data showed H2 O2 generated in wounded tissues also role a signal in the regulatory pathway of herbivore-induced OsSUT4 expressions. Our finding provide insights for further study in signal network of herbivory-induced sucrose translocation.