{Reference Type}: Journal Article
{Title}: Light signaling regulates root-knot nematode infection and development via HY5-SWEET signaling.
{Author}: Wu B;Jia X;Zhu W;Gao Y;Tan K;Duan Y;Chen L;Fan H;Wang Y;Liu X;Xuan Y;Zhu X;
{Journal}: BMC Plant Biol
{Volume}: 24
{Issue}: 1
{Year}: 2024 Jul 11
{Factor}: 5.26
{DOI}: 10.1186/s12870-024-05356-2
{Abstract}: <B>BACKGROUND: </B>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.<BR><B>RESULTS: </B>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.<BR><B>CONCLUSIONS: </B>This study elucidates the important role of light signaling pathways in plant resistance to nematodes, providing a new perspective for RKN resistance research.