Open AccessInduction of Antiviral Responses by Acibenzolar-S-Methyl Against Cucurbit chlorotic yellows virus in Melon
Author(s) -
M Takeshita,
Mitsuru Okuda,
Shujiro Okuda,
Ayaka Hyodo,
Kaori Hamano,
Naruto Furuya,
Kenichi Tsuchiya
Publication year - 2013
Publication title -
phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.264
H-Index - 131
eISSN - 1943-7684
pISSN - 0031-949X
DOI - 10.1094/phyto-08-12-0188-r
Subject(s) - melon , cucumis , biology , chlorosis , inoculation , systemic acquired resistance , virus , virology , cucurbitaceae , horticulture , botany , gene , genetics , arabidopsis , mutant
Cucurbit chlorotic yellows virus (CCYV) (family Closteroviridae, genus Crinivirus) is an emerging virus which causes severe diseases on melon (Cucumis melo) plants. CCYV-infected melon plants display yellowing, mottling, chlorosis, or chlorotic spots on leaves. To develop a new control strategy, the potential for 1,2,3-benzothiadiazole-7-thiocarboxylic acid-S-methyl-ester (ASM) to suppress CCYV infection was evaluated. ASM treatment on melon plants greatly increased the expression levels of pathogenesis-related 1a gene, a marker gene for systemic acquired resistance. ASM treatment on melon plants before inoculation of CCYV suppressed systemic symptoms and decreased CCYV accumulation. ASM treatment on melon even after inoculation of CCYV reduced disease severity and accumulation levels of CCYV. The results show the potential for ASM treatment on attenuation of the CCYV disease symptoms.