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The receptor-like kinases BAM1 and BAM2 are required for root xylem patterning.
Fan, Pengfei; Aguilar, Emmanuel; Bradai, Mariem; Xue, Hao; Wang, Hua; Rosas-Diaz, Tabata; Tang, Weihua; Wolf, Sebastian; Zhang, Heng; Xu, Lin; Lozano-Durán, Rosa.
Afiliación
  • Fan P; Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China.
  • Aguilar E; University of the Chinese Academy of Sciences, 100049 Beijing, China.
  • Bradai M; Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China.
  • Xue H; Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Area de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga, Spain.
  • Wang H; Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China.
  • Rosas-Diaz T; Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China.
  • Tang W; University of the Chinese Academy of Sciences, 100049 Beijing, China.
  • Wolf S; National Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China.
  • Zhang H; Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China.
  • Xu L; National Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China.
  • Lozano-Durán R; Department of Plant Developmental Biology, Centre for Organismal Studies, Heidelberg University, 69120 Heidelberg, Germany.
Proc Natl Acad Sci U S A ; 118(12)2021 03 23.
Article en En | MEDLINE | ID: mdl-33723062
Xylem patterning in the root is established through the creation of opposing gradients of miRNAs and their targets, transcripts of the HD-ZIP III family of transcriptions factors, enabled by the cell-to-cell spread of the former. The miRNAs regulating xylem patterning, miR165/6, move through plasmodesmata, but how their trafficking is regulated remains elusive. Here, we describe that simultaneous mutation of the plasma membrane- and plasmodesmata-localized receptor-like kinases (RLKs) BARELY ANY MERISTEM (BAM) 1 and 2 or expression of the geminivirus-encoded BAM1/2-interactor C4 results in higher accumulation and broader distribution of the HD-ZIP III transcripts despite normal total accumulation of miR165/6, and ultimately causes defects in xylem patterning, which depend on the function of the aforementioned miRNA targets. Taken together, our results show that BAM1 and BAM2 are redundantly required for proper xylem patterning in the Arabidopsis root, by ensuring the proper distribution and accumulation of miR165/6-targeted transcripts.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas Serina-Treonina Quinasas / Genes de Plantas / Raíces de Plantas / Xilema / Desarrollo de la Planta Idioma: En Revista: Proc Natl Acad Sci U S A Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas Serina-Treonina Quinasas / Genes de Plantas / Raíces de Plantas / Xilema / Desarrollo de la Planta Idioma: En Revista: Proc Natl Acad Sci U S A Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos