Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development

Abstract Excess Phosphorus (P) in agriculture is causing serious environmental problems like eutrophication of lakes and rivers. Unlike the enormous information available for phosphate starvation response (P0), very few information is available for the effect of excess phosphate Pi on plants. Charac...

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Autores principales:	Devesh Shukla, Claire A. Rinehart, Shivendra V. Sahi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e7003f84cafb483fae7c9a810c78947f
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spelling	oai:doaj.org-article:e7003f84cafb483fae7c9a810c78947f2021-12-02T11:40:51ZComprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development10.1038/s41598-017-03061-92045-2322https://doaj.org/article/e7003f84cafb483fae7c9a810c78947f2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03061-9https://doaj.org/toc/2045-2322Abstract Excess Phosphorus (P) in agriculture is causing serious environmental problems like eutrophication of lakes and rivers. Unlike the enormous information available for phosphate starvation response (P0), very few information is available for the effect of excess phosphate Pi on plants. Characterization of Excess Phosphate Response (EPiR) is essential for designing strategies to increase phosphate accumulation and tolerance. We show a significant modulation in the root developmental plasticity under the increasing supply of excess Pi. An excess supply of 20 mM Pi (P20) produces a shallow root system architecture (RSA), reduces primary root growth, root apical meristem size, and meristematic activity in Arabidopsis. The inhibition of primary root growth and development is indeterminate in nature and caused by the decrease in number of meristematic cortical cells due to EPiR. Significant changes occurred in metal nutrients level due to excess Pi supply. A comparative microarray investigation of the EPiR response reveals a modulation in ethylene biosynthesis and signaling, metal ions deficiency response, and root development related genes. We used ethylene-insensitive or sensitive mutants to provide more evidence for ethylene-mediated signaling. A new role of EPiR in regulating the developmental responses of plants mediated by ethylene has been demonstrated.Devesh ShuklaClaire A. RinehartShivendra V. SahiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-16 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Devesh Shukla Claire A. Rinehart Shivendra V. Sahi Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
description	Abstract Excess Phosphorus (P) in agriculture is causing serious environmental problems like eutrophication of lakes and rivers. Unlike the enormous information available for phosphate starvation response (P0), very few information is available for the effect of excess phosphate Pi on plants. Characterization of Excess Phosphate Response (EPiR) is essential for designing strategies to increase phosphate accumulation and tolerance. We show a significant modulation in the root developmental plasticity under the increasing supply of excess Pi. An excess supply of 20 mM Pi (P20) produces a shallow root system architecture (RSA), reduces primary root growth, root apical meristem size, and meristematic activity in Arabidopsis. The inhibition of primary root growth and development is indeterminate in nature and caused by the decrease in number of meristematic cortical cells due to EPiR. Significant changes occurred in metal nutrients level due to excess Pi supply. A comparative microarray investigation of the EPiR response reveals a modulation in ethylene biosynthesis and signaling, metal ions deficiency response, and root development related genes. We used ethylene-insensitive or sensitive mutants to provide more evidence for ethylene-mediated signaling. A new role of EPiR in regulating the developmental responses of plants mediated by ethylene has been demonstrated.
format	article
author	Devesh Shukla Claire A. Rinehart Shivendra V. Sahi
author_facet	Devesh Shukla Claire A. Rinehart Shivendra V. Sahi
author_sort	Devesh Shukla
title	Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
title_short	Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
title_full	Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
title_fullStr	Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
title_full_unstemmed	Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
title_sort	comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e7003f84cafb483fae7c9a810c78947f
work_keys_str_mv	AT deveshshukla comprehensivestudyofexcessphosphateresponserevealsethylenemediatedsignalingthatnegativelyregulatesplantgrowthanddevelopment AT clairearinehart comprehensivestudyofexcessphosphateresponserevealsethylenemediatedsignalingthatnegativelyregulatesplantgrowthanddevelopment AT shivendravsahi comprehensivestudyofexcessphosphateresponserevealsethylenemediatedsignalingthatnegativelyregulatesplantgrowthanddevelopment
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Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development

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