ID | 59968 |
フルテキストURL | |
著者 |
Wari, David
Institute of Plant Science and Resources, Okayama University
Kabir, Md Alamgir
Institute of Plant Science and Resources, Okayama University
Mujiono, Kadis
Institute of Plant Science and Resources, Okayama University
Hojo, Yuko
Institute of Plant Science and Resources, Okayama University
Shinya, Tomonori
Institute of Plant Science and Resources, Okayama University
Tani, Akio
Institute of Plant Science and Resources, Okayama University
ORCID
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Nakatani, Hiroko
Institute of Plant Science and Resources, Okayama University
Galis, Ivan
Institute of Plant Science and Resources, Okayama University
ORCID
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抄録 | Feeding of sucking insects, such as the rice brown planthopper (Nilaparvata lugens; BPH), causes only limited mechanical damage on plants that is otherwise essential for injury-triggered defense responses against herbivores. In pursuit of complementary BPH elicitors perceived by plants, we examined the potential effects of BPH honeydew secretions on the BPH monocot host, rice (Oryza sativa). We found that BPH honeydew strongly elicits direct and putative indirect defenses in rice, namely accumulation of phytoalexins in the leaves, and release of volatile organic compounds from the leaves that serve to attract natural enemies of herbivores, respectively. We then examined the elicitor active components in the honeydew and found that bacteria in the secretions are responsible for the activation of plant defense. Corroborating the importance of honeydew-associated microbiota for induced plant resistance, BPHs partially devoid of their microbiota via prolonged antibiotics ingestion induced significantly less defense in rice relative to antibiotic-free insects applied to similar groups of plants. Our data suggest that rice plants may additionally perceive herbivores via their honeydew-associated microbes, allowing them to discriminate between incompatible herbivores—that do not produce honeydew—and those that are compatible and therefore dangerous.
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キーワード | Honeydew-associated microorganisms
phytoalexins
plant defense
rice (Oryza sativa)
rice brown planthopper (Nilaparvata lugens)
sucking insect
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発行日 | 2019-05-02
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出版物タイトル |
Journal of Experimental Botany
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巻 | 70巻
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号 | 5号
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出版者 | Oxford University Press
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開始ページ | 1683
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終了ページ | 1696
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ISSN | 0022-0957
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NCID | AA00697526
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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著作権者 | © The Author(s)
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論文のバージョン | publisher
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関連URL | isVersionOf https://doi.org/10.1093/jxb/erz041
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ライセンス | http://creativecommons.org/licenses/by/4.0/
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