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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Autores principales:	Velasquez, Silvia Melina, Muschietti, Jorge P., Nadra, Alejandro Daniel, Estevez, Jose Manuel
Publicado:	2017
Materias:	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 RSL4 protein, Arabidopsis superoxide-forming enzyme 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 Proteins Basic Helix-Loop-Helix Transcription Factors Gene Expression Regulation, Plant Indoleacetic Acids NADPH Oxidases Plant Roots Reactive Oxygen Species Transcription Factors
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00278424_v114_n20_p5289_Mangano http://hdl.handle.net/20.500.12110/paper_00278424_v114_n20_p5289_Mangano
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00278424_v114_n20_p5289_Mangano
record_format	dspace
spelling	paper:paper_00278424_v114_n20_p5289_Mangano2023-06-08T14:54:32Z Molecular link between auxin and ROS-mediated polar growth Velasquez, Silvia Melina Muschietti, Jorge P. Nadra, Alejandro Daniel Estevez, Jose Manuel 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. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00278424_v114_n20_p5289_Mangano 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 Velasquez, Silvia Melina Muschietti, Jorge P. Nadra, Alejandro Daniel Estevez, Jose Manuel 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.
author	Velasquez, Silvia Melina Muschietti, Jorge P. Nadra, Alejandro Daniel Estevez, Jose Manuel
author_facet	Velasquez, Silvia Melina Muschietti, Jorge P. Nadra, Alejandro Daniel Estevez, Jose Manuel
author_sort	Velasquez, Silvia Melina
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
publishDate	2017
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00278424_v114_n20_p5289_Mangano http://hdl.handle.net/20.500.12110/paper_00278424_v114_n20_p5289_Mangano
work_keys_str_mv	AT velasquezsilviamelina molecularlinkbetweenauxinandrosmediatedpolargrowth AT muschiettijorgep molecularlinkbetweenauxinandrosmediatedpolargrowth AT nadraalejandrodaniel molecularlinkbetweenauxinandrosmediatedpolargrowth AT estevezjosemanuel molecularlinkbetweenauxinandrosmediatedpolargrowth
_version_	1768543502260502528

Molecular link between auxin and ROS-mediated polar growth

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