Cargando…

Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae

Phi thickenings are specialized bands of secondary wall deposited around radial walls of root cortical cells. These structures have been reported in various species from the Brassicaceae, including Brassica oleracea, where previous reports using hydroponics indicated that they can be induced by expo...

Descripción completa

Detalles Bibliográficos
Autores principales: Aleamotu’a, Maketalena, Tai, Yu-Ting, McCurdy, David W., Collings, David A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6027303/
https://www.ncbi.nlm.nih.gov/pubmed/29921823
http://dx.doi.org/10.3390/plants7020047
_version_ 1783336580540268544
author Aleamotu’a, Maketalena
Tai, Yu-Ting
McCurdy, David W.
Collings, David A.
author_facet Aleamotu’a, Maketalena
Tai, Yu-Ting
McCurdy, David W.
Collings, David A.
author_sort Aleamotu’a, Maketalena
collection PubMed
description Phi thickenings are specialized bands of secondary wall deposited around radial walls of root cortical cells. These structures have been reported in various species from the Brassicaceae, including Brassica oleracea, where previous reports using hydroponics indicated that they can be induced by exposure to salt. Using roots grown on agar plates, we show that both salt and sucrose can induce the formation of phi thickenings in a diverse range of species within the Brassicaceae. Within the genus Brassica, both B. oleracea and B. napus demonstrated the formation of phi thickenings, but in a strongly cultivar-specific manner. Confocal microscopy of phi thickenings showed that they form a complex network of reinforcement surrounding the inner root cortex, and that a delicate, reticulate network of secondary wall deposition can also variously form on the inner face of the cortical cell layer with phi thickenings adjacent to the endodermal layer. Results presented here indicate that phi thickenings can be induced in response to salt and water stress and that wide variation occurs in these responses even within the same species.
format Online
Article
Text
id pubmed-6027303
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-60273032018-07-13 Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae Aleamotu’a, Maketalena Tai, Yu-Ting McCurdy, David W. Collings, David A. Plants (Basel) Article Phi thickenings are specialized bands of secondary wall deposited around radial walls of root cortical cells. These structures have been reported in various species from the Brassicaceae, including Brassica oleracea, where previous reports using hydroponics indicated that they can be induced by exposure to salt. Using roots grown on agar plates, we show that both salt and sucrose can induce the formation of phi thickenings in a diverse range of species within the Brassicaceae. Within the genus Brassica, both B. oleracea and B. napus demonstrated the formation of phi thickenings, but in a strongly cultivar-specific manner. Confocal microscopy of phi thickenings showed that they form a complex network of reinforcement surrounding the inner root cortex, and that a delicate, reticulate network of secondary wall deposition can also variously form on the inner face of the cortical cell layer with phi thickenings adjacent to the endodermal layer. Results presented here indicate that phi thickenings can be induced in response to salt and water stress and that wide variation occurs in these responses even within the same species. MDPI 2018-06-19 /pmc/articles/PMC6027303/ /pubmed/29921823 http://dx.doi.org/10.3390/plants7020047 Text en © 2018 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
Aleamotu’a, Maketalena
Tai, Yu-Ting
McCurdy, David W.
Collings, David A.
Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae
title Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae
title_full Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae
title_fullStr Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae
title_full_unstemmed Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae
title_short Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae
title_sort developmental biology and induction of phi thickenings by abiotic stress in roots of the brassicaceae
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6027303/
https://www.ncbi.nlm.nih.gov/pubmed/29921823
http://dx.doi.org/10.3390/plants7020047
work_keys_str_mv AT aleamotuamaketalena developmentalbiologyandinductionofphithickeningsbyabioticstressinrootsofthebrassicaceae
AT taiyuting developmentalbiologyandinductionofphithickeningsbyabioticstressinrootsofthebrassicaceae
AT mccurdydavidw developmentalbiologyandinductionofphithickeningsbyabioticstressinrootsofthebrassicaceae
AT collingsdavida developmentalbiologyandinductionofphithickeningsbyabioticstressinrootsofthebrassicaceae