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PagARGOS promotes low-lignin wood formation in poplar.
Yao, Xiaomin; Zhang, Guifang; Zhang, Geng; Sun, Qian; Liu, Cuimei; Chu, Jinfang; Jing, Yanping; Niu, Shihui; Fu, Chunxiang; Lew, Tedrick Thomas Salim; Lin, Jinxing; Li, Xiaojuan.
Afiliação
  • Yao X; State Key Laboratory of Efficient Production of Forest Resources, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.
  • Zhang G; National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China.
  • Zhang G; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore.
  • Sun Q; State Key Laboratory of Efficient Production of Forest Resources, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.
  • Liu C; National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China.
  • Chu J; State Key Laboratory of Efficient Production of Forest Resources, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.
  • Jing Y; National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China.
  • Niu S; Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing, China.
  • Fu C; National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
  • Lew TTS; National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
  • Lin J; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China.
  • Li X; State Key Laboratory of Efficient Production of Forest Resources, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.
Plant Biotechnol J ; 22(8): 2201-2215, 2024 Aug.
Article em En | MEDLINE | ID: mdl-38492213
ABSTRACT
Wood formation, which occurs mainly through secondary xylem development, is important not only for supplying raw material for the 'ligno-chemical' industry but also for driving the storage of carbon. However, the complex mechanisms underlying the promotion of xylem formation remain to be elucidated. Here, we found that overexpression of Auxin-Regulated Gene involved in Organ Size (ARGOS) in hybrid poplar 84 K (Populus alba × Populus tremula var. glandulosa) enlarged organ size. In particular, PagARGOS promoted secondary growth of stems with increased xylem formation. To gain further insight into how PagARGOS regulates xylem development, we further carried out yeast two-hybrid screening and identified that the auxin transporter WALLS ARE THIN1 (WAT1) interacts with PagARGOS. Overexpression of PagARGOS up-regulated WAT1, activating a downstream auxin response promoting cambial cell division and xylem differentiation for wood formation. Moreover, overexpressing PagARGOS caused not only higher wood yield but also lower lignin content compared with wild-type controls. PagARGOS is therefore a potential candidate gene for engineering fast-growing and low-lignin trees with improved biomass production.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas de Plantas / Madeira / Regulação da Expressão Gênica de Plantas / Populus / Xilema / Lignina Idioma: En Revista: Plant Biotechnol J Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas de Plantas / Madeira / Regulação da Expressão Gênica de Plantas / Populus / Xilema / Lignina Idioma: En Revista: Plant Biotechnol J Ano de publicação: 2024 Tipo de documento: Article