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Front Plant Sci

Title:		Deficiency in Silicon Transporter Lsi1 Compromises Inducibility of Anti-herbivore Defense in Rice Plants
Author(s):		Lin Y; Sun Z; Li Z; Xue R; Cui W; Sun S; Liu T; Zeng R; Song Y;
Address:		"Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China. Institute of Crop Resistance and Chemical Ecology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China"
Journal Title:		Front Plant Sci
Year:		2019
Volume:		20190524
Issue:
Page Number:		652 -
DOI:		10.3389/fpls.2019.00652
ISSN/ISBN:		1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking)
Abstract:		"Silicon (Si) application can significantly enhance rice resistance against herbivorous insects. However, the underlying mechanism is elusive. In this study, silicon transporter mutant OsLsi1 and corresponding wild-type rice (WT) were treated with and without Si to determine Si effects on rice resistance to leaffolder (LF), Cnaphalocrocis medinalis (Guenee) (Lepidoptera: Pyralidae). Si application on WT plants significantly promoted rice plant growth, upregulated expression level of OsLsi1 and increased Si accumulation in the leaves and roots, as well as effectively reduced LF weight gain, while it showed only marginal or no effect on the mutant plants. Furthermore, upon LF infestation, transcript levels of OsLOX, OsAOS2, OsCOI1a, OsCOI1b, and OsBBPI, and activity of catalase, superoxide dismutase, peroxidase, and polyphenol oxidase were significantly higher in Si-treated than untreated WT plants. However, OsLsi1 mutant plants displayed higher susceptibility to LF, and minimal response of defense-related enzymes and jasmonate dependent genes to Si application. These results suggest that induced defense plays a vital role in Si-enhanced resistance and deficiency in silicon transporter Lsi1 compromises inducibility of anti-herbivore defense in rice plants"
Keywords:		Oryza sativa induced defense jasmonate signaling rice leaffolder silicon silicon-transporter OsLsi1;
Notes:		"PubMed-not-MEDLINELin, Yibin Sun, Zhongxiang Li, Zhenfang Xue, Rongrong Cui, Weikang Sun, Shaozhi Liu, Tingting Zeng, Rensen Song, Yuanyuan eng Switzerland 2019/06/11 Front Plant Sci. 2019 May 24; 10:652. doi: 10.3389/fpls.2019.00652. eCollection 2019"