-
- Silvina Mangano
- Fundación Instituto Leloir, Buenos Aires C1405BWE, Argentina;
-
- Silvina Paola Denita-Juarez
- Fundación Instituto Leloir, Buenos Aires C1405BWE, Argentina;
-
- Hee-Seung Choi
- Department of Biological Sciences, Seoul National University, Seoul 151-742, Korea;
-
- Eliana Marzol
- Fundación Instituto Leloir, Buenos Aires C1405BWE, Argentina;
-
- Youra Hwang
- Department of Biological Sciences, Seoul National University, Seoul 151-742, Korea;
-
- Philippe Ranocha
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Université Paul Sabatier, UMR 5546, CNRS, F-31326 Castanet-Tolosan, France;
-
- Silvia Melina Velasquez
- Fundación Instituto Leloir, Buenos Aires C1405BWE, Argentina;
-
- Cecilia Borassi
- Fundación Instituto Leloir, Buenos Aires C1405BWE, Argentina;
-
- María Laura Barberini
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Héctor Torres, INGEBI-CONICET, Buenos Aires 1428, Argentina;
-
- Ariel Alejandro Aptekmann
- Departamento de Química Biológica, IQUIBICEN-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina;
-
- Jorge Prometeo Muschietti
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Héctor Torres, INGEBI-CONICET, Buenos Aires 1428, Argentina;
-
- Alejandro Daniel Nadra
- Departamento de Química Biológica, IQUIBICEN-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina;
-
- Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Université Paul Sabatier, UMR 5546, CNRS, F-31326 Castanet-Tolosan, France;
-
- Hyung-Taeg Cho
- Department of Biological Sciences, Seoul National University, Seoul 151-742, Korea;
-
- José Manuel Estevez
- Fundación Instituto Leloir, Buenos Aires C1405BWE, Argentina;
説明
<jats:title>Significance</jats:title> <jats:p>Tip-growing root hairs are an excellent model system for deciphering the molecular mechanism underlying reactive oxygen species (ROS)-mediated cell elongation. Root hairs are able to expand in response to external signals, increasing several hundred-fold their original size, which is important for survival of the plant. Although their final cell size is of fundamental importance, the molecular mechanisms that control it remain largely unknown. In this study, we propose a molecular mechanism that links the auxin–auxin response factors module to activation of RSL4, which directly targets genes encoding ROS-producing enzymes such as NADPH oxidases (or RESPIRATORY BURST OXIDASE HOMOLOG proteins) and secreted type III peroxidases. Activation of these genes impacts on apoplastic ROS homeostasis, thereby stimulating root hair cell elongation.</jats:p>
収録刊行物
-
- Proceedings of the National Academy of Sciences
-
Proceedings of the National Academy of Sciences 114 (20), 5289-5294, 2017-05
Proceedings of the National Academy of Sciences
