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The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries

During the development of many fleshy fruits, water flow becomes progressively more phloemic and less xylemic. In grape (Vitis vinifera L.), the current hypothesis to explain this change is that the tracheary elements of the peripheral xylem break as a result of berry growth, rendering the xylem str...

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Autores principales: Chatelet, David S., Rost, Thomas L., Shackel, Kenneth A., Matthews, Mark A.
Formato: Texto
Lenguaje:English
Publicado: Oxford University Press 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2413285/
https://www.ncbi.nlm.nih.gov/pubmed/18440931
http://dx.doi.org/10.1093/jxb/ern060
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author Chatelet, David S.
Rost, Thomas L.
Shackel, Kenneth A.
Matthews, Mark A.
author_facet Chatelet, David S.
Rost, Thomas L.
Shackel, Kenneth A.
Matthews, Mark A.
author_sort Chatelet, David S.
collection PubMed
description During the development of many fleshy fruits, water flow becomes progressively more phloemic and less xylemic. In grape (Vitis vinifera L.), the current hypothesis to explain this change is that the tracheary elements of the peripheral xylem break as a result of berry growth, rendering the xylem structurally discontinuous and hence non-functional. Recent work, however, has shown via apoplastic dye movement through the xylem of post-veraison berries that the xylem should remain structurally intact throughout berry development. To corroborate this, peripheral xylem structure in developing Chardonnay berries was investigated via maceration and plastic sectioning. Macerations revealed that, contrary to current belief, the xylem was comprised mostly of vessels with few tracheids. In cross-section, the tracheary elements of the vascular bundles formed almost parallel radial files, with later formed elements toward the epidermis and earlier formed elements toward the centre of the berry. Most tracheary elements remained intact throughout berry maturation, consistent with recent reports of vascular dye movement in post-veraison berries.
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spelling pubmed-24132852009-02-25 The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries Chatelet, David S. Rost, Thomas L. Shackel, Kenneth A. Matthews, Mark A. J Exp Bot Research Papers During the development of many fleshy fruits, water flow becomes progressively more phloemic and less xylemic. In grape (Vitis vinifera L.), the current hypothesis to explain this change is that the tracheary elements of the peripheral xylem break as a result of berry growth, rendering the xylem structurally discontinuous and hence non-functional. Recent work, however, has shown via apoplastic dye movement through the xylem of post-veraison berries that the xylem should remain structurally intact throughout berry development. To corroborate this, peripheral xylem structure in developing Chardonnay berries was investigated via maceration and plastic sectioning. Macerations revealed that, contrary to current belief, the xylem was comprised mostly of vessels with few tracheids. In cross-section, the tracheary elements of the vascular bundles formed almost parallel radial files, with later formed elements toward the epidermis and earlier formed elements toward the centre of the berry. Most tracheary elements remained intact throughout berry maturation, consistent with recent reports of vascular dye movement in post-veraison berries. Oxford University Press 2008-05 2008-04-24 /pmc/articles/PMC2413285/ /pubmed/18440931 http://dx.doi.org/10.1093/jxb/ern060 Text en © 2008 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)
spellingShingle Research Papers
Chatelet, David S.
Rost, Thomas L.
Shackel, Kenneth A.
Matthews, Mark A.
The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries
title The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries
title_full The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries
title_fullStr The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries
title_full_unstemmed The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries
title_short The peripheral xylem of grapevine (Vitis vinifera). 1. Structural integrity in post-veraison berries
title_sort peripheral xylem of grapevine (vitis vinifera). 1. structural integrity in post-veraison berries
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2413285/
https://www.ncbi.nlm.nih.gov/pubmed/18440931
http://dx.doi.org/10.1093/jxb/ern060
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