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Regulatory networks of senescence-associated gene-transcription factors promote degradation in Moso bamboo shoots.
Zhang, Wenyu; Shi, Man; Yang, Kebin; Zhang, Junbo; Gao, Zhimin; El-Kassaby, Yousry A; Li, Quan; Cao, Tingting; Deng, Shixin; Qing, Hongsheng; Wang, Zhikang; Song, Xinzhang.
Afiliación
  • Zhang W; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Shi M; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Yang K; College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China.
  • Zhang J; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Gao Z; International Center for Bamboo and Rattan, Beijing, China.
  • El-Kassaby YA; Department of Forest and Conservation Sciences, Faculty of Forestry, Forest Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada.
  • Li Q; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Cao T; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Deng S; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Qing H; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Wang Z; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
  • Song X; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
Plant Cell Environ ; 47(9): 3654-3667, 2024 Sep.
Article en En | MEDLINE | ID: mdl-38752443
ABSTRACT
Bamboo cultivation, particularly Moso bamboo (Phyllostachys edulis), holds significant economic importance in various regions worldwide. Bamboo shoot degradation (BSD) severely affects productivity and economic viability. However, despite its agricultural consequences, the molecular mechanisms underlying BSD remain unclear. Consequently, we explored the dynamic changes of BSD through anatomy, physiology and the transcriptome. Our findings reveal ruptured protoxylem cells, reduced cell wall thickness and the accumulation of sucrose and reactive oxygen species (ROS) during BSD. Transcriptomic analysis underscored the importance of genes related to plant hormone signal transduction, sugar metabolism and ROS homoeostasis in this process. Furthermore, BSD appears to be driven by the coexpression regulatory network of senescence-associated gene transcription factors (SAG-TFs), specifically PeSAG39, PeWRKY22 and PeWRKY75, primarily located in the protoxylem of vascular bundles. Yeast one-hybrid and dual-luciferase assays demonstrated that PeWRKY22 and PeWRKY75 activate PeSAG39 expression by binding to its promoter. This study advanced our understanding of the molecular regulatory mechanisms governing BSD, offering a valuable reference for enhancing Moso bamboo forest productivity.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Factores de Transcripción / Brotes de la Planta / Regulación de la Expresión Génica de las Plantas / Redes Reguladoras de Genes 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
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Factores de Transcripción / Brotes de la Planta / Regulación de la Expresión Génica de las Plantas / Redes Reguladoras de Genes 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