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著者 Lin Y., Sun Z., Li Z., Xue R., Cui W., Sun S., Liu T., Zeng R., Song Y.
タイトル Deficiency in Silicon Transporter Lsi1 Compromises Inducibility of Anti-herbivore Defense in Rice Plants.
Abstract:
Silicon (Si) application can significantly enhance rice resistance against herbivorous insects. However, the underlying mechanism is elusive. In this study, silicon transporter mutant <i>OsLsi1</i> and corresponding wild-type rice (WT) were treated with and without Si to determine Si effects on rice resistance to leaffolder (LF), <i>Cnaphalocrocis medinalis</i> (Guenée) (Lepidoptera: Pyralidae). Si application on WT plants significantly promoted rice plant growth, upregulated expression level of <i>OsLsi1</i> 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 <i>OsLOX</i>, <i>OsAOS2</i>, <i>OsCOI1a</i>, <i>OsCOI1b</i>, and <i>OsBBPI</i>, and activity of catalase, superoxide dismutase, peroxidase, and polyphenol oxidase were significantly higher in Si-treated than untreated WT plants. However, <i>OsLsi1</i> 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.
掲載誌 Front Plant Sci
Country China
刊数 10
ページ 652
発刊年 2019
PubMed ID 31178878
PubMed Central ID 6543919
DOI 10.3389/fpls.2019.00652
URL -
関連情報
遺伝子 AOS2 COI1 COI1B LSI1 RBBI3-3
INSD -
系統 野生イネ
コアコレクション 		-
突然変異系統(遺伝研 Collection) -
種子不稔系統 -
致死変異体系統 -
組織別発生段階
- 突然変異系統(遺伝子) 		-
栽培イネ品種(遺伝研 Collection) -
組織別発生段階 -
/rice/oryzabase