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ID 59968
フルテキストURL
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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
Nakatani, Hiroko Institute of Plant Science and Resources, Okayama University
Galis, Ivan Institute of Plant Science and Resources, Okayama University ORCID Kaken ID publons researchmap
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.
キーワード
Honeydew-associated microorganisms
phytoalexins
plant defense
rice (Oryza sativa)
rice brown planthopper (Nilaparvata lugens)
sucking insect
発行日
2019-05-02
出版物タイトル
Journal of Experimental Botany
70巻
5号
出版者
Oxford University Press
開始ページ
1683
終了ページ
1696
ISSN
0022-0957
NCID
AA00697526
資料タイプ
学術雑誌論文
言語
English
OAI-PMH Set
岡山大学
著作権者
© The Author(s)
論文のバージョン
publisher
PubMed ID
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.1093/jxb/erz041
ライセンス
http://creativecommons.org/licenses/by/4.0/