Nymphal feeding suppresses oviposition-induced indirect plant defense in rice
Abstract Feeding and oviposition by phytophagous insects are both known to trigger defenses in plants. Whether these two defenses functionally interact remains poorly studied, although these interactions are likely important for pests with overlapping generations. Here we investigated the difference...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-55816-y |
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| author | Jiancai Li Xiaoli Liu Wenhan Xiao Jiayi Huangfu Meredith C. Schuman Ian T. Baldwin Yonggen Lou |
| author_facet | Jiancai Li Xiaoli Liu Wenhan Xiao Jiayi Huangfu Meredith C. Schuman Ian T. Baldwin Yonggen Lou |
| author_sort | Jiancai Li |
| collection | DOAJ |
| description | Abstract Feeding and oviposition by phytophagous insects are both known to trigger defenses in plants. Whether these two defenses functionally interact remains poorly studied, although these interactions are likely important for pests with overlapping generations. Here we investigated the differences and interaction between feeding- and oviposition-induced plant defenses triggered by the brown planthopper (BPH, Nilaparvata lugens), which gregariously feeds and oviposits on rice. Analyses of host-plant transcriptomes, phytohormones, and direct and indirect defense compounds all show that BPH gravid females (GFs), but not nymphs and non-gravid females (NFs), strongly induce rice defenses. BPH nymphs and GFs prefer to feed on plants previously infested by nymphs over un-attacked plants, but are repelled by plants previously infested by GFs. Moreover, nymph feeding is found to reduce the attractiveness of rice plants to natural enemies and decrease egg parasitism by suppressing GF-induced volatiles that mediate indirect defenses in both growth chambers and paddies. Intergenerational interactions between oviposition- and feeding-induced plant defenses not only promote the development of the population of pest insects but may also contribute to the aggregation behavior of pest insects by suppressing oviposition-induced indirect plant defenses. |
| format | Article |
| id | doaj-art-2ab3cf4a6e2d4c7bbeee84d286015976 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-2ab3cf4a6e2d4c7bbeee84d2860159762025-01-12T12:30:35ZengNature PortfolioNature Communications2041-17232025-01-0116111110.1038/s41467-025-55816-yNymphal feeding suppresses oviposition-induced indirect plant defense in riceJiancai Li0Xiaoli Liu1Wenhan Xiao2Jiayi Huangfu3Meredith C. Schuman4Ian T. Baldwin5Yonggen Lou6State key laboratory of rice biology and breeding & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang UniversityState key laboratory of rice biology and breeding & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang UniversityState key laboratory of rice biology and breeding & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang UniversityState key laboratory of rice biology and breeding & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang UniversityDepartments of Geography and Chemistry, University of ZürichDepartment of Molecular Ecology, Max Planck Institute for Chemical EcologyState key laboratory of rice biology and breeding & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang UniversityAbstract Feeding and oviposition by phytophagous insects are both known to trigger defenses in plants. Whether these two defenses functionally interact remains poorly studied, although these interactions are likely important for pests with overlapping generations. Here we investigated the differences and interaction between feeding- and oviposition-induced plant defenses triggered by the brown planthopper (BPH, Nilaparvata lugens), which gregariously feeds and oviposits on rice. Analyses of host-plant transcriptomes, phytohormones, and direct and indirect defense compounds all show that BPH gravid females (GFs), but not nymphs and non-gravid females (NFs), strongly induce rice defenses. BPH nymphs and GFs prefer to feed on plants previously infested by nymphs over un-attacked plants, but are repelled by plants previously infested by GFs. Moreover, nymph feeding is found to reduce the attractiveness of rice plants to natural enemies and decrease egg parasitism by suppressing GF-induced volatiles that mediate indirect defenses in both growth chambers and paddies. Intergenerational interactions between oviposition- and feeding-induced plant defenses not only promote the development of the population of pest insects but may also contribute to the aggregation behavior of pest insects by suppressing oviposition-induced indirect plant defenses.https://doi.org/10.1038/s41467-025-55816-y |
| spellingShingle | Jiancai Li Xiaoli Liu Wenhan Xiao Jiayi Huangfu Meredith C. Schuman Ian T. Baldwin Yonggen Lou Nymphal feeding suppresses oviposition-induced indirect plant defense in rice Nature Communications |
| title | Nymphal feeding suppresses oviposition-induced indirect plant defense in rice |
| title_full | Nymphal feeding suppresses oviposition-induced indirect plant defense in rice |
| title_fullStr | Nymphal feeding suppresses oviposition-induced indirect plant defense in rice |
| title_full_unstemmed | Nymphal feeding suppresses oviposition-induced indirect plant defense in rice |
| title_short | Nymphal feeding suppresses oviposition-induced indirect plant defense in rice |
| title_sort | nymphal feeding suppresses oviposition induced indirect plant defense in rice |
| url | https://doi.org/10.1038/s41467-025-55816-y |
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