Pathogen-inducible CaUGT1 is involved in resistance response against TMV infection by controlling salicylic acid accumulation

Boo Ja Lee, Sung Kyu Kim, Soo Bok Choi, Jungdon Bae, Ki Jeong Kim, Young Jin Kim, Kyung Hee Paek

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Capsicum annuum L. Bugang exhibits a hypersensitive response against Tobacco mosaic virus (TMV) P0 infection. The C. annuum UDP-glucosyltransferase 1 (CaUGT1) gene was upregulated during resistance response to TMV and by salicylic acid, ethephon, methyl viologen, and sodium nitroprusside treatment. When the gene was downregulated by virus-induced gene silencing, a delayed HR was observed. In addition, free and total SA concentrations in the CaUGT1-downregulated hot pepper were decreased by 52% and 48% compared to that of the control plants, respectively. This suggested that the CaUGT1 gene was involved in resistance response against TMV infection by controlling the accumulation of SA.

    Original languageEnglish
    Pages (from-to)2315-2320
    Number of pages6
    JournalFEBS Letters
    Volume583
    Issue number13
    DOIs
    Publication statusPublished - 2009 Jul 7

    Bibliographical note

    Funding Information:
    This study was supported by a Grant (R11-2003-008-02001-0) from the Korea Science and Engineering Foundation to the Plant Signaling Network Research Center and a Korea University Grant.

    Copyright:
    Copyright 2009 Elsevier B.V., All rights reserved.

    Keywords

    • Hot pepper UDP-glucosyltransferase
    • Salicylic acid
    • Tobacco mosaic virus

    ASJC Scopus subject areas

    • Biophysics
    • Structural Biology
    • Biochemistry
    • Molecular Biology
    • Genetics
    • Cell Biology

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