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. annuum UDP-glucosyltransferase 1 ( CaUGT1) gene was upregulated during resistance response to TMV and by salicylic acid, ethephon, methyl viologen, and sodium nitroprusside treatment...

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Veröffentlicht in:	FEBS letters 2009-07, Vol.583 (13), p.2315-2320
Hauptverfasser:	Lee, Boo-Ja, Kim, Sung-Kyu, Choi, Soo Bok, Bae, Jungdon, Kim, Ki-Jeong, Kim, Young-Jin, Paek, Kyung-Hee
Format:	Artikel
Sprache:	eng
Schlagworte:	Capsicum - enzymology Capsicum - virology Capsicum annuum Cell Death DNA, Complementary - metabolism Glucosyltransferases - genetics Hot pepper UDP-glucosyltransferase Immunity, Innate - genetics Phenotype Plant Diseases - virology RNA, Messenger - metabolism Salicylic acid Salicylic Acid - metabolism Signal Transduction Tobacco mosaic virus Tobacco Mosaic Virus - pathogenicity Transcription, Genetic
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Zusammenfassung:	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.
ISSN:	0014-5793 1873-3468
DOI:	10.1016/j.febslet.2009.06.028