Pathogen-inducible CaUGT1 is involved in resistance response against TMV infection by controlling salicylic acid accumulation.
Capsicum annuum L. Bugang exhibits a hypersensitive response against Tobacco mosaic virus (TMV) P(0) infection. The C. annuumUDP-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.
Lee
Boo-Ja
BJ
School of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.
Kim
Sung-Kyu
SK
Choi
Soo Bok
SB
Bae
Jungdon
J
Kim
Ki-Jeong
KJ
Kim
Young-Jin
YJ
Paek
Kyung-Hee
KH
D002212:Capsicum / Q000201:enzymology* / Q000821:virology; D016923:Cell Death; D018076:DNA, Complementary / Q000378:metabolism; D005964:Glucosyltransferases / Q000235:genetics*; D007113:Immunity, Innate / Q000235:genetics; D010641:Phenotype; D010935:Plant Diseases / Q000821:virology*; D012333:RNA, Messenger / Q000378:metabolism; D020156:Salicylic Acid / Q000378:metabolism*; D015398:Signal Transduction; D014027:Tobacco Mosaic Virus / Q000472:pathogenicity*; D014158:Transcription, Genetic
D018076:DNA, Complementary; D012333:RNA, Messenger; D005964:Glucosyltransferases; D020156:Salicylic Acid