Light signaling regulates root-knot nematode infection and development via HY5-SWEET signaling.
BMC Plant Biol
; 24(1): 664, 2024 Jul 11.
Article
em En
| MEDLINE
| ID: mdl-38992595
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.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Doenças das Plantas
/
Tylenchoidea
/
Arabidopsis
/
Proteínas de Arabidopsis
Limite:
Animals
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article