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PmHs1pro-1 monitors Bsursaphelenchus xylophilus infection and activates defensive response in resistant Pinus massoniana.
Xie, Yini; Liu, Bin; Zhou, Zhichun; Gao, Kai; Yin, Hengfu; Zhao, Yunxiao; Liu, Qinghua.
Afiliación
  • Xie Y; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.
  • Liu B; Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, Zhejiang, China.
  • Zhou Z; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.
  • Gao K; Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, Zhejiang, China.
  • Yin H; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.
  • Zhao Y; Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, Zhejiang, China.
  • Liu Q; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.
Plant Cell Environ ; 2024 Jul 08.
Article en En | MEDLINE | ID: mdl-38973616
ABSTRACT
Plant resistance (R) genes play a crucial role in the detection of effector proteins secreted by pathogens, either directly or indirectly, as well as in the subsequent activation of downstream defence mechanisms. However, little is known about how R genes regulate the defence responses of conifers, particularly Pinus massoniana, against the destructive pine wood nematode (PWN; Bursaphelenchus xylophilus). Here, we isolated and characterised PmHs1pro-1, a nematode-resistance gene of P. massoniana, using bioinformatics, molecular biology, histochemistry and transgenesis. Tissue-specific expressional pattern and localisation of PmHs1pro-1 suggested that it was a crucial positive regulator in response to PWN attack in resistant P. massoniana. Meanwhile, overexpression of PmHs1pro-1 was found to activate reactive oxygen species (ROS) metabolism-related enzymes and the expressional level of their key genes, including superoxide dismutase, peroxidase and catalase. In addition, we showed that PmHs1pro-1 directly recognised the effector protein BxSCD1of PWN, and induced the ROS burst responding to PWN invasion in resistant P. massoniana. Our findings illustrated the molecular framework of R genes directly recognising the effector protein of pathology in pine, which offered a novel insight into the plant-pathogen arms race.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Plant Cell Environ Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
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: Plant Cell Environ Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos