Class III Peroxidases PRX01, PRX44, and PRX73 Control Root Hair Growth in Arabidopsis thaliana

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dc.contributor.authorMarzol, Eliana
dc.contributor.authorBorassi, Cecilia
dc.contributor.authorCarignani Sardoy, Mariana
dc.contributor.authorRanocha, Philippe
dc.contributor.authorAptekmann, Ariel A.
dc.contributor.authorBringas, Mauro
dc.contributor.authorPennington, Janice
dc.contributor.authorPaez-Valencia, Julio
dc.contributor.authorMartínez Pacheco, Javier
dc.contributor.authorRodríguez-Garcia, Diana R.
dc.contributor.authorRondón Guerrero, Yossmayer Del Carmen
dc.contributor.authorPeralta, Juan Manuel
dc.contributor.authorFleming, Margaret
dc.contributor.authorMishler-Elmore, John W.
dc.contributor.authorMangano, Silvina
dc.contributor.authorBlanco-Herrera, Francisca
dc.contributor.authorBedinger, Patricia A.
dc.contributor.authorDunand, Christophe
dc.contributor.authorCapece, Luciana
dc.contributor.authorNadra, Alejandro D.
dc.contributor.authorHeld, Michael
dc.contributor.authorOtegui, Marisa S.
dc.contributor.authorEstevez, José M.
dc.date.accessioned2024-05-14T19:41:48Z
dc.date.available2024-05-14T19:41:48Z
dc.date.issued2022-05-02
dc.descriptionIndexación: Scopus.
dc.description.abstractRoot hair cells are important sensors of soil conditions. They grow towards and absorb water-soluble nutrients. This fast and oscillatory growth is mediated by continuous remodeling of the cell wall. Root hair cell walls contain polysaccharides and hydroxyproline-rich glycoproteins, including extensins (EXTs). Class-III peroxidases (PRXs) are secreted into the apoplastic space and are thought to trigger either cell wall loosening or polymerization of cell wall components, such as Tyr-mediated assembly of EXT networks (EXT-PRXs). The precise role of these EXT-PRXs is unknown. Using genetic, biochemical, and modeling approaches, we identified and characterized three root-hair-specific putative EXT-PRXs, PRX01, PRX44, and PRX73. prx01,44,73 triple mutation and PRX44 and PRX73 overexpression had opposite effects on root hair growth, peroxidase activity, and ROS production, with a clear impact on cell wall thickness. We use an EXT fluorescent reporter with contrasting levels of cell wall insolubilization in prx01,44,73 and PRX44-overexpressing background plants. In this study, we propose that PRX01, PRX44, and PRX73 control EXT-mediated cell wall properties during polar expansion of root hair cells. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
dc.description.urihttps://www.mdpi.com/1422-0067/23/10/5375
dc.identifier.citationInternational Journal of Molecular Sciences, Volume 23, Issue 10, May-2 2022, Article number 5375
dc.identifier.doi10.3390/ijms23105375
dc.identifier.issn1661-6596
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/56813
dc.language.isoen
dc.publisherMDPI
dc.rights.licenseCC BY 4.0 DEED Atribución 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectArabidopsis
dc.subjectCell walls
dc.subjectClass-III peroxidases
dc.subjectExtensins
dc.subjectRoot hairs
dc.subjectROS
dc.titleClass III Peroxidases PRX01, PRX44, and PRX73 Control Root Hair Growth in Arabidopsis thaliana
dc.typeArtículo
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