Isolation of jasmonate-induced sesquiterpene synthase of rice: Product of which has an antifungal activity against Magnaporthe oryzae

Taniguchi, Shiduku; Miyoshi, Seika; Tamaoki, Daisuke; Yamada, Shoko M.; Tanaka, Keiichiro; Uji, Yuya; Tanaka, Suzumi; Akimitsu, Kazuya; Gomi, Kenji

doi:10.1016/j.jplph.2014.01.007

Cited by 71 publications

(53 citation statements)

References 55 publications

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“…Jasmonic acid (JA) and its derivatives, the so called jasmonates, have been extensively characterized as the central players during biotic stress resistance, for example, emission of volatiles to attract the natural enemies of herbivores or production of toxic compounds to repel invaders1234. In rice, jasmonates induce the production of anti-microbial specialized metabolites called phytoalexins, which consist of 16 diterpenoids and 1 flavonoid56.…”

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confidence: 99%

OsMYC2, an essential factor for JA-inductive sakuranetin production in rice, interacts with MYC2-like proteins that enhance its transactivation ability

Ogawa

Miyamoto

Nemoto

et al. 2017

Sci Rep

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Biosynthesis of sakuranetin, a flavonoid anti-fungal phytoalexin that occurs in rice, is highly dependent on jasmonic acid (JA) signalling and induced by a variety of environmental stimuli. We previously identified OsNOMT, which encodes naringenin 7-O-methyltransferase (NOMT); NOMT is a key enzyme for sakuranetin production. Although OsNOMT expression is induced by JA treatment, the regulation mechanism that activates the biosynthetic pathway of sakuranetin has not yet been elucidated. In this study, we show that JA-inducible basic helix-loop-helix transcriptional factor OsMYC2 drastically enhances the activity of the OsNOMT promoter and is essential for JA-inducible sakuranetin production. In addition, we identified 2 collaborators of OsMYC2, OsMYC2-like protein 1 and 2 (OsMYL1 and OsMYL2) that further activated the OsNOMT promoter in synergy with OsMYC2. Physical interaction of OsMYC2 with OsMYL1 and OsMYL2 further supported the idea that these interactions lead to the enhancement of the transactivation activity of OsMYC2. Our results indicate that JA signalling via OsMYC2 is reinforced by OsMYL1 and OsMYL2, resulting in the inductive production of sakuranetin during defence responses in rice.

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confidence: 99%

OsMYC2, an essential factor for JA-inductive sakuranetin production in rice, interacts with MYC2-like proteins that enhance its transactivation ability

Ogawa

Miyamoto

Nemoto

et al. 2017

Sci Rep

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“…Linalool and β-elemene have been reported to have no effect against Xoo. 11,25 In this study, we focused on (E,E)-2,4-heptadienal and characterized its properties in detail because there is currently no information available on its physiological function in the JA-responsive defense response in rice. In addition to negative effect to Xoo growth, treatment with (E,E)-2,4-heptadienal showed significant inhibitory activity toward spore germination of the rice fungal pathogen Magnaporthe oryzae (Fig.…”

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confidence: 99%

Multiple roles of plant volatiles in jasmonate-induced defense response in rice

Tanaka

Taniguchi

Tamaoki

et al. 2014

Plant Signaling & Behavior

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“…Furthermore, few studies have focused on the molecular mechanisms by which microbes mediate plant volatile emissions. Although plant volatiles belong to different metabolic pathways, they appear to be regulated by major signaling pathways such as those of SA and JA (Taniguchi et al ., ,; Eberl et al ., ). The effects of elicitors and effectors that induce or suppress plant defense pathways upon MIPV emission should be investigated in more detail.…”

Section: Future Perspectivementioning

confidence: 99%

Microbe‐induced plant volatiles

2017

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Plants emit a plethora of volatile organic compounds in response to biotic and abiotic stresses. These compounds act as infochemicals for ecological communication in the phytobiome. This study reviews the role of microbe-induced plant volatiles (MIPVs) in plant-microbe interactions. MIPVs are affected by the taxonomic position of the microbe, the identity of the plant and the type of interaction. Plants also emit exclusive blends of volatiles in response to nonhost and host interactions, as well as to beneficial microbes and necrotrophic/biotrophic pathogens. These MIPVs directly inhibit pathogen growth and indirectly promote resistance/susceptibility to subsequent plant pathogen attack. Viruses and phloem-limiting bacteria modify plant volatiles to attract insect vectors. Susceptible plants can respond to MIPVs from resistant plants and become resistant. Recent advances in our understanding of the molecular mechanisms of MIPV synthesis in plants and how plant pathogen effectors manipulate their biosynthesis are discussed. This knowledge will help broaden our understanding of plant-microbe interactions and should facilitate the development of new emerging techniques for sustainable plant disease management.

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Isolation of jasmonate-induced sesquiterpene synthase of rice: Product of which has an antifungal activity against Magnaporthe oryzae

Cited by 71 publications

References 55 publications

OsMYC2, an essential factor for JA-inductive sakuranetin production in rice, interacts with MYC2-like proteins that enhance its transactivation ability

OsMYC2, an essential factor for JA-inductive sakuranetin production in rice, interacts with MYC2-like proteins that enhance its transactivation ability

Multiple roles of plant volatiles in jasmonate-induced defense response in rice

Microbe‐induced plant volatiles

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