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Role of reactive oxygen species in lesion mimic formation and conferred basal resistance to Fusarium graminearum in barley lesion mimic mutant 5386.
Wang, Wenqiang; Zhang, Jifa; Guo, Fenxia; Di, Yindi; Wang, Yuhui; Li, Wankun; Sun, Yali; Wang, Yuhai; Ni, Fei; Fu, Daolin; Wang, Wei; Hao, Qunqun.
Afiliación
  • Wang W; College of Life Sciences, Zaozhuang University, Zaozhuang, China.
  • Zhang J; State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China.
  • Guo F; Shandong Shofine Seed Technology Co., Ltd., Jining, China.
  • Di Y; State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China.
  • Wang Y; Spring Valley Agriscience Co., Ltd., Jinan, China.
  • Li W; College of Life Sciences, Zaozhuang University, Zaozhuang, China.
  • Sun Y; College of Life Sciences, Zaozhuang University, Zaozhuang, China.
  • Wang Y; College of Life Sciences, Zaozhuang University, Zaozhuang, China.
  • Ni F; College of Life Sciences, Zaozhuang University, Zaozhuang, China.
  • Fu D; Qihe Bureau of Agriculture and Rural, Qihe, China.
  • Wang W; College of Life Sciences, Zaozhuang University, Zaozhuang, China.
  • Hao Q; State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China.
Front Plant Sci ; 13: 1020551, 2022.
Article en En | MEDLINE | ID: mdl-36699849
This study investigated the barley lesion mimic mutant (LMM) 5386, evidenced by a leaf brown spot phenotype localized on the chromosome 3H, and its conferred basal resistance to Fusarium graminearum. RNA-seq analysis identified 1453 genes that were differentially expressed in LMM 5386 compared to those in the wild type. GO and KEGG functional annotations suggested that lesion mimic formation was mediated by pathways involving oxidation reduction and glutathione metabolism. Additionally, reactive oxygen species (ROS) accumulation in brown spots was substantially higher in LMM 5386 than in the wild-type plant; therefore, antioxidant competence, which is indicated by ROS accumulation, was significantly lower in LMM 5386. Furthermore, the reduction of glycine in LMM 5386 inhibited glutathione biosynthesis. These results suggest that the decrease in antioxidant competence and glutathione biosynthesis caused considerable ROS accumulation, leading to programmed cell death, which eventually reduced the yield components in LMM 5386.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Plant Sci Año: 2022 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Plant Sci Año: 2022 Tipo del documento: Article País de afiliación: China
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