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Apoplastic class III peroxidases PRX62 and PRX69 promote Arabidopsis root hair growth at low temperature

Nature communications, 2022-03, Vol.13 (1), p.1310-1310, Article 1310 [Peer Reviewed Journal]

2022. The Author(s). ;The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Attribution ;The Author(s) 2022 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-022-28833-4 ;PMID: 35288564

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Title:
Apoplastic class III peroxidases PRX62 and PRX69 promote Arabidopsis root hair growth at low temperature
Author: Pacheco, Javier Martínez ; Ranocha, Philippe ; Kasulin, Luciana ; Fusari, Corina M ; Servi, Lucas ; Aptekmann, Ariel A ; Gabarain, Victoria Berdion ; Peralta, Juan Manuel ; Borassi, Cecilia ; Marzol, Eliana ; Rodríguez-Garcia, Diana Rosa ; Del Carmen Rondón Guerrero, Yossmayer ; Sardoy, Mariana Carignani ; Ferrero, Lucía ; Botto, Javier F ; Meneses, Claudio ; Ariel, Federico ; Nadra, Alejandro D ; Petrillo, Ezequiel ; Dunand, Christophe ; Estevez, José M
Subjects: Arabidopsis ; Arabidopsis - metabolism ; Arabidopsis Proteins - genetics ; Arabidopsis Proteins - metabolism ; Arabidopsis thaliana ; Cell size ; Cell walls ; Elongation ; Extensin ; Genome-wide association studies ; Genome-Wide Association Study ; Genomes ; Homeostasis ; Life Sciences ; Low temperature ; Nutrient availability ; Peroxidase ; Peroxidases - genetics ; Peroxidases - metabolism ; Plant Roots - metabolism ; Proteins ; Root hairs ; Seedlings ; Temperature ; Vegetal Biology
Is Part Of: Nature communications, 2022-03, Vol.13 (1), p.1310-1310, Article 1310
Description: Root Hairs (RHs) growth is influenced by endogenous and by external environmental signals that coordinately regulate its final cell size. We have recently determined that RH growth was unexpectedly boosted when Arabidopsis thaliana seedlings are cultivated at low temperatures. It was proposed that RH growth plasticity in response to low temperature was linked to a reduced nutrient availability in the media. Here, we explore the molecular basis of this RH growth response by using a Genome Wide Association Study (GWAS) approach using Arabidopsis thaliana natural accessions. We identify the poorly characterized PEROXIDASE 62 (PRX62) and a related protein PRX69 as key proteins under moderate low temperature stress. Strikingly, a cell wall protein extensin (EXT) reporter reveals the effect of peroxidase activity on EXT cell wall association at 10 °C in the RH apical zone. Collectively, our results indicate that PRX62, and to a lesser extent PRX69, are key apoplastic PRXs that modulate ROS-homeostasis and cell wall EXT-insolubilization linked to RH elongation at low temperature.
Publisher: England: Nature Publishing Group
Language: English
Identifier: ISSN: 2041-1723
EISSN: 2041-1723
DOI: 10.1038/s41467-022-28833-4
PMID: 35288564
Source: Hyper Article en Ligne (HAL) (Open Access)
MEDLINE
PubMed Central
ProQuest Central
DOAJ Directory of Open Access Journals

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Apoplastic class III peroxidases PRX62 and PRX69 promote Arabidopsis root hair growth at low temperature

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