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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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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 |
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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 |
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