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- Title
Light signaling regulates root-knot nematode infection and development via HY5-SWEET signaling.
- Authors
Wu, Bohong; Jia, Xueying; Zhu, Wei; Gao, Yin; Tan, Kefei; Duan, Yuxi; Chen, Lijie; Fan, Haiyan; Wang, Yuanyuan; Liu, Xiaoyu; Xuan, Yuanhu; Zhu, Xiaofeng
- Abstract
Background: Meloidogyne incognita is one of the most important plant-parasitic nematodes and causes tremendous losses to the agricultural economy. Light is an important living factor for plants and pathogenic organisms, and sufficient light promotes root-knot nematode infection, but the underlying mechanism is still unclear. Results: Expression level and genetic analyses revealed that the photoreceptor genes PHY, CRY, and PHOT have a negative impact on nematode infection. Interestingly, ELONGATED HYPOCOTYL5 (HY5), a downstream gene involved in the regulation of light signaling, is associated with photoreceptor-mediated negative regulation of root-knot nematode resistance. ChIP and yeast one-hybrid assays supported that HY5 participates in plant-to-root-knot nematode responses by directly binding to the SWEET negative regulatory factors involved in root-knot nematode resistance. Conclusions: This study elucidates the important role of light signaling pathways in plant resistance to nematodes, providing a new perspective for RKN resistance research.
- Subjects
NEMATODE infections; ROOT-knot; NEGATIVE regulatory factor; PLANT nematodes; SOUTHERN root-knot nematode; AGRICULTURAL economics; ROOT-knot nematodes
- Publication
BMC Plant Biology, 2024, Vol 24, Issue 1, p1
- ISSN
1471-2229
- Publication type
Article
- DOI
10.1186/s12870-024-05356-2