Premium
Jasmonate induction of the monoterpene linalool confers resistance to rice bacterial blight and its biosynthesis is regulated by JAZ protein in rice
Author(s) -
TANIGUCHI SHIDUKU,
HOSOKAWASHIAGA YUMI,
TAMAOKI DAISUKE,
YAMADA SHOKO,
AKIMITSU KAZUYA,
GOMI KENJI
Publication year - 2014
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/pce.12169
Subject(s) - linalool , jasmonic acid , jasmonate , xanthomonas oryzae , monoterpene , methyl jasmonate , biology , genetically modified rice , biosynthesis , botany , chemistry , gene , biochemistry , microbiology and biotechnology , genetically modified crops , transgene , arabidopsis , mutant , essential oil
Jasmonic acid ( JA ) is involved in the regulation of host immunity in plants. Recently, we demonstrated that JA signalling has an important role in resistance to rice bacterial blight caused by X anthomonas oryzae pv. oryzae ( Xoo ) in rice. Here, we report that many volatile compounds accumulate in response to exogenous application of JA , including the monoterpene linalool. Expression of linalool synthase was up‐regulated by JA . Vapour treatment with linalool induced resistance to Xoo , and transgenic rice plants overexpressing linalool synthase were more resistance to Xoo , presumably due to the up‐regulation of defence‐related genes in the absence of any treatment. JA ‐induced accumulation of linalool was regulated by OsJAZ 8, a rice jasmonate ZIM ‐domain protein involving the JA signalling pathway at the transcriptional level, suggesting that linalool plays an important role in JA ‐induced resistance to Xoo in rice.