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 journalArticle

9 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

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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