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Plants attacked above-ground by leaf-mining flies change below-ground microbiota to enhance plant defense.
Gao, Yang; Yang, Qiong; Chen, Qiulin; He, Yunchuan; He, Wei; Geng, Jiamei; Zhang, Yunzeng; Zhou, Ying; Zhu, Zeng-Rong.
Afiliación
  • Gao Y; Hainan Institute, Zhejiang University, Sanya, 572025, China.
  • Yang Q; State Key Laboratory of Rice Biology, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Chen Q; School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
  • He Y; Hainan Institute, Zhejiang University, Sanya, 572025, China.
  • He W; State Key Laboratory of Rice Biology, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Geng J; Hainan Institute, Zhejiang University, Sanya, 572025, China.
  • Zhang Y; State Key Laboratory of Rice Biology, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Zhou Y; Hainan Institute, Zhejiang University, Sanya, 572025, China.
  • Zhu ZR; State Key Laboratory of Rice Biology, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
Hortic Res ; 11(6): uhae121, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38919561
ABSTRACT
Root-associated microbiomes play a crucial role in plant responses to biotic and abiotic stresses. Plants can enrich beneficial microbes to increase their stress-relieving ability. Above-ground insect herbivory is among the most detrimental stresses for plants, especially to crop production. However, few studies have explored how root-associated microbiomes respond to herbivores and influence plant-defense functions under herbivory stress. We investigate the changes and functional role of root-associated microbial communities under herbivory stress using leafminer (Liriomyza trifolii) and cowpea (Vigna unguiculata) as a focal system. We did this by using a combination of 16S ribosomal RNA gene profiling and metagenomic sequencing to test for differences in co-occurrence networks and functions between cowpea plants infested and noninfested with leafminers. The results demonstrated that leafminer infestation caused a shift in the rhizosphere microbiome, which was characterized by a significant variation in microbiome community structure and composition, the selection of hub microbes involved in nitrogen (N) metabolism, and functional enrichment related to N metabolism. Notably, nitrogen-fixing bacteria Bradyrhizobium species were actively enriched and selected to be hubs in the rhizosphere. Inoculation with Bradyrhizobium enhanced cowpea performance under leafminer stress and increased protease inhibitor levels to decrease leafminer fitness. Overall, our study characterized the changes of root-associated microbiota between leafminer-infested and noninfested cowpea plants and revealed the mechanisms underlying the rhizosphere microbiome shift that enhance plant performance and defense against herbivory. Our findings provide further support for the notion that plants enrich rhizosphere microbes to counteract aboveground insect herbivores.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Hortic Res Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Hortic Res Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido