The <i>Meloidogyne graminicola</i> effector MgMO289 targets a novel copper metallochaperone to suppress immunity in rice
نویسندگان
چکیده
Abstract Recent studies have reported that plant-parasitic nematodes facilitate their infection by suppressing plant immunity via effectors, but the inhibitory mechanisms remain poorly understood. This study found a novel effector MgMO289 is exclusively expressed in dorsal esophageal gland of Meloidogyne graminicola and up-regulated at parasitic third-/fourth-stage juveniles. In planta silencing substantially increased resistance to M. graminicola. Moreover, we interacts with new rice copper metallochaperone heavy metal-associated protein 04 (OsHPP04), cytosolic COPPER/ZINC -SUPEROXIDE DISMUTASE 2 (cCu/Zn-SOD2) target OsHPP04. Rice plants overexpressing OsHPP04 or exhibited an susceptibility higher Cu/Zn-SOD activity, lower O2•? content, when compared wild-type plants. Meanwhile, immune response assays showed could suppress host innate immunity. These findings reveal pathway for pathogen utilizes O2•?-scavenging system eliminate
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 2021
ISSN: ['0022-0957', '1460-2431']
DOI: https://doi.org/10.1093/jxb/erab208