Molecular link between auxin and ROS-mediated polar growth
Root hair polar growth is endogenously controlled by auxin and sustained by oscillating levels of reactive oxygen species (ROS). These cells extend several hundred-fold their original size toward signals important for plant survival. Although their final cell size is of fundamental importance, the m...
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todo:paper_00278424_v114_n20_p5289_Mangano2023-10-03T14:38:14Z Molecular link between auxin and ROS-mediated polar growth Mangano, S. Denita-Juarez, S.P. Choi, H.S. Marzol, E. Hwang, Y. Ranocha, P. Velasquez, S.M. Borassi, C. Barberini, M.L. Aptekmann, A.A. Muschietti, J.P. Nadra, A.D. Dunand, C. Cho, H.-T. Estevez, J.M. Auxin Peroxidases Root hair growth ROS RSL4 auxin reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase transcription factor transcription factor RSL4 unclassified drug Arabidopsis protein basic helix loop helix transcription factor indoleacetic acid derivative peroxidase reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase RSL4 protein, Arabidopsis superoxide-forming enzyme transcription factor Arabidopsis Article cell size gene expression hair growth nonhuman priority journal root hair upregulation gene expression regulation genetics growth, development and aging metabolism plant root Arabidopsis Arabidopsis Proteins Basic Helix-Loop-Helix Transcription Factors Gene Expression Regulation, Plant Indoleacetic Acids NADPH Oxidases Peroxidases Plant Roots Reactive Oxygen Species Transcription Factors Root hair polar growth is endogenously controlled by auxin and sustained by oscillating levels of reactive oxygen species (ROS). These cells extend several hundred-fold their original size toward signals important for plant survival. Although their final cell size is of fundamental importance, the molecular mechanisms that control it remain largely unknown. Here we show that ROS production is controlled by the transcription factor RSL4, which in turn is transcriptionally regulated by auxin through several auxin response factors (ARFs). In this manner, auxin controls ROS-mediated polar growth by activating RSL4, which then up-regulates the expression of genes encoding NADPH oxidases (also known as RESPIRATORY BURST OXIDASE HOMOLOG proteins) and class III peroxidases, which catalyze ROS production. Chemical or genetic interference with ROS balance or peroxidase activity affects root hair final cell size. Overall, our findings establish amolecular link between auxin and ROS-mediated polar root hair growth. Fil:Velasquez, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Muschietti, J.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Nadra, A.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Estevez, J.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00278424_v114_n20_p5289_Mangano |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Auxin Peroxidases Root hair growth ROS RSL4 auxin reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase transcription factor transcription factor RSL4 unclassified drug Arabidopsis protein basic helix loop helix transcription factor indoleacetic acid derivative peroxidase reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase RSL4 protein, Arabidopsis superoxide-forming enzyme transcription factor Arabidopsis Article cell size gene expression hair growth nonhuman priority journal root hair upregulation gene expression regulation genetics growth, development and aging metabolism plant root Arabidopsis Arabidopsis Proteins Basic Helix-Loop-Helix Transcription Factors Gene Expression Regulation, Plant Indoleacetic Acids NADPH Oxidases Peroxidases Plant Roots Reactive Oxygen Species Transcription Factors |
| spellingShingle |
Auxin Peroxidases Root hair growth ROS RSL4 auxin reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase transcription factor transcription factor RSL4 unclassified drug Arabidopsis protein basic helix loop helix transcription factor indoleacetic acid derivative peroxidase reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase RSL4 protein, Arabidopsis superoxide-forming enzyme transcription factor Arabidopsis Article cell size gene expression hair growth nonhuman priority journal root hair upregulation gene expression regulation genetics growth, development and aging metabolism plant root Arabidopsis Arabidopsis Proteins Basic Helix-Loop-Helix Transcription Factors Gene Expression Regulation, Plant Indoleacetic Acids NADPH Oxidases Peroxidases Plant Roots Reactive Oxygen Species Transcription Factors Mangano, S. Denita-Juarez, S.P. Choi, H.S. Marzol, E. Hwang, Y. Ranocha, P. Velasquez, S.M. Borassi, C. Barberini, M.L. Aptekmann, A.A. Muschietti, J.P. Nadra, A.D. Dunand, C. Cho, H.-T. Estevez, J.M. Molecular link between auxin and ROS-mediated polar growth |
| topic_facet |
Auxin Peroxidases Root hair growth ROS RSL4 auxin reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase transcription factor transcription factor RSL4 unclassified drug Arabidopsis protein basic helix loop helix transcription factor indoleacetic acid derivative peroxidase reactive oxygen metabolite reduced nicotinamide adenine dinucleotide phosphate oxidase RSL4 protein, Arabidopsis superoxide-forming enzyme transcription factor Arabidopsis Article cell size gene expression hair growth nonhuman priority journal root hair upregulation gene expression regulation genetics growth, development and aging metabolism plant root Arabidopsis Arabidopsis Proteins Basic Helix-Loop-Helix Transcription Factors Gene Expression Regulation, Plant Indoleacetic Acids NADPH Oxidases Peroxidases Plant Roots Reactive Oxygen Species Transcription Factors |
| description |
Root hair polar growth is endogenously controlled by auxin and sustained by oscillating levels of reactive oxygen species (ROS). These cells extend several hundred-fold their original size toward signals important for plant survival. Although their final cell size is of fundamental importance, the molecular mechanisms that control it remain largely unknown. Here we show that ROS production is controlled by the transcription factor RSL4, which in turn is transcriptionally regulated by auxin through several auxin response factors (ARFs). In this manner, auxin controls ROS-mediated polar growth by activating RSL4, which then up-regulates the expression of genes encoding NADPH oxidases (also known as RESPIRATORY BURST OXIDASE HOMOLOG proteins) and class III peroxidases, which catalyze ROS production. Chemical or genetic interference with ROS balance or peroxidase activity affects root hair final cell size. Overall, our findings establish amolecular link between auxin and ROS-mediated polar root hair growth. |
| format |
JOUR |
| author |
Mangano, S. Denita-Juarez, S.P. Choi, H.S. Marzol, E. Hwang, Y. Ranocha, P. Velasquez, S.M. Borassi, C. Barberini, M.L. Aptekmann, A.A. Muschietti, J.P. Nadra, A.D. Dunand, C. Cho, H.-T. Estevez, J.M. |
| author_facet |
Mangano, S. Denita-Juarez, S.P. Choi, H.S. Marzol, E. Hwang, Y. Ranocha, P. Velasquez, S.M. Borassi, C. Barberini, M.L. Aptekmann, A.A. Muschietti, J.P. Nadra, A.D. Dunand, C. Cho, H.-T. Estevez, J.M. |
| author_sort |
Mangano, S. |
| title |
Molecular link between auxin and ROS-mediated polar growth |
| title_short |
Molecular link between auxin and ROS-mediated polar growth |
| title_full |
Molecular link between auxin and ROS-mediated polar growth |
| title_fullStr |
Molecular link between auxin and ROS-mediated polar growth |
| title_full_unstemmed |
Molecular link between auxin and ROS-mediated polar growth |
| title_sort |
molecular link between auxin and ros-mediated polar growth |
| url |
http://hdl.handle.net/20.500.12110/paper_00278424_v114_n20_p5289_Mangano |
| work_keys_str_mv |
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1782027804460711936 |