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Pathogen‐inducible CaUGT1 is involved in resistance response against TMV infection by controlling salicylic acid accumulation
Author(s) -
Lee Boo-Ja,
Kim Sung-Kyu,
Choi Soo Bok,
Bae Jungdon,
Kim Ki-Jeong,
Kim Young-Jin,
Paek Kyung-Hee
Publication year - 2009
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2009.06.028
Subject(s) - tobacco mosaic virus , salicylic acid , ethephon , hypersensitive response , pathogen , gene silencing , cucumber mosaic virus , virus , pepper , microbiology and biotechnology , gene , biology , chemistry , virology , plant disease resistance , plant virus , biochemistry , horticulture , ethylene , catalysis
Capsicum annuum L. Bugang exhibits a hypersensitive response against Tobacco mosaic virus (TMV) P 0 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.