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CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency

Plant root system architecture changes drastically in response to availability of macronutrients in the soil environment. Despite the importance of root sulfur (S) uptake in plant growth and reproduction, molecular mechanisms underlying root development in response to S availability have not been fu...

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Autores principales: Dong, Wei, Wang, Yinghua, Takahashi, Hideki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6524044/
https://www.ncbi.nlm.nih.gov/pubmed/31003469
http://dx.doi.org/10.3390/plants8040103
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author Dong, Wei
Wang, Yinghua
Takahashi, Hideki
author_facet Dong, Wei
Wang, Yinghua
Takahashi, Hideki
author_sort Dong, Wei
collection PubMed
description Plant root system architecture changes drastically in response to availability of macronutrients in the soil environment. Despite the importance of root sulfur (S) uptake in plant growth and reproduction, molecular mechanisms underlying root development in response to S availability have not been fully characterized. We report here on the signaling module composed of the CLAVATA3 (CLV3)/EMBRYO SURROUNDING REGION (CLE) peptide and CLAVATA1 (CLV1) leucine-rich repeat receptor kinase, which regulate lateral root (LR) development in Arabidopsis thaliana upon changes in S availability. The wild-type seedlings exposed to prolonged S deficiency showed a phenotype with low LR density, which was restored upon sulfate supply. In contrast, the clv1 mutant showed a higher daily increase rate of LR density relative to the wild-type under prolonged S deficiency, which was diminished to the wild-type level upon sulfate supply, suggesting that CLV1 directs a signal to inhibit LR development under S-deficient conditions. CLE2 and CLE3 transcript levels decreased under S deficiency and through CLV1-mediated feedback regulations, suggesting the levels of CLE peptide signals are adjusted during the course of LR development. This study demonstrates a fine-tuned mechanism for LR development coordinately regulated by CLE-CLV1 signaling and in response to changes in S availability.
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spelling pubmed-65240442019-06-05 CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency Dong, Wei Wang, Yinghua Takahashi, Hideki Plants (Basel) Article Plant root system architecture changes drastically in response to availability of macronutrients in the soil environment. Despite the importance of root sulfur (S) uptake in plant growth and reproduction, molecular mechanisms underlying root development in response to S availability have not been fully characterized. We report here on the signaling module composed of the CLAVATA3 (CLV3)/EMBRYO SURROUNDING REGION (CLE) peptide and CLAVATA1 (CLV1) leucine-rich repeat receptor kinase, which regulate lateral root (LR) development in Arabidopsis thaliana upon changes in S availability. The wild-type seedlings exposed to prolonged S deficiency showed a phenotype with low LR density, which was restored upon sulfate supply. In contrast, the clv1 mutant showed a higher daily increase rate of LR density relative to the wild-type under prolonged S deficiency, which was diminished to the wild-type level upon sulfate supply, suggesting that CLV1 directs a signal to inhibit LR development under S-deficient conditions. CLE2 and CLE3 transcript levels decreased under S deficiency and through CLV1-mediated feedback regulations, suggesting the levels of CLE peptide signals are adjusted during the course of LR development. This study demonstrates a fine-tuned mechanism for LR development coordinately regulated by CLE-CLV1 signaling and in response to changes in S availability. MDPI 2019-04-18 /pmc/articles/PMC6524044/ /pubmed/31003469 http://dx.doi.org/10.3390/plants8040103 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dong, Wei
Wang, Yinghua
Takahashi, Hideki
CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency
title CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency
title_full CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency
title_fullStr CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency
title_full_unstemmed CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency
title_short CLE-CLAVATA1 Signaling Pathway Modulates Lateral Root Development under Sulfur Deficiency
title_sort cle-clavata1 signaling pathway modulates lateral root development under sulfur deficiency
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6524044/
https://www.ncbi.nlm.nih.gov/pubmed/31003469
http://dx.doi.org/10.3390/plants8040103
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