Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress

Water in the xylem, the water transport system of plants, is vulnerable to freezing and cavitation, i.e. to phase change from liquid to ice or gaseous phase. The former is a threat in cold and the latter in dry environmental conditions. Here we show that a small xylem conduit diameter, which has pre...

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Main Authors: Lintunen, A., Hölttä, T., Kulmala, M.
Format: Online
Language:English
Published: Nature Publishing Group 2013
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3686780/
id pubmed-3686780
recordtype oai_dc
spelling pubmed-36867802013-06-24 Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress Lintunen, A. Hölttä, T. Kulmala, M. Article Water in the xylem, the water transport system of plants, is vulnerable to freezing and cavitation, i.e. to phase change from liquid to ice or gaseous phase. The former is a threat in cold and the latter in dry environmental conditions. Here we show that a small xylem conduit diameter, which has previously been shown to be associated with lower cavitation pressure thus making a plant more drought resistant, is also associated with a decrease in the temperature required for ice nucleation in the xylem. Thus the susceptibility of freezing and cavitation are linked together in the xylem of plants. We explain this linkage by the regulation of the sizes of the nuclei catalysing freezing and drought cavitation. Our results offer better understanding of the similarities of adaption of plants to cold and drought stress, and offer new insights into the ability of plants to adapt to the changing environment. Nature Publishing Group 2013-06-19 /pmc/articles/PMC3686780/ /pubmed/23778457 http://dx.doi.org/10.1038/srep02031 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Lintunen, A.
Hölttä, T.
Kulmala, M.
spellingShingle Lintunen, A.
Hölttä, T.
Kulmala, M.
Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
author_facet Lintunen, A.
Hölttä, T.
Kulmala, M.
author_sort Lintunen, A.
title Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
title_short Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
title_full Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
title_fullStr Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
title_full_unstemmed Anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
title_sort anatomical regulation of ice nucleation and cavitation helps trees to survive freezing and drought stress
description Water in the xylem, the water transport system of plants, is vulnerable to freezing and cavitation, i.e. to phase change from liquid to ice or gaseous phase. The former is a threat in cold and the latter in dry environmental conditions. Here we show that a small xylem conduit diameter, which has previously been shown to be associated with lower cavitation pressure thus making a plant more drought resistant, is also associated with a decrease in the temperature required for ice nucleation in the xylem. Thus the susceptibility of freezing and cavitation are linked together in the xylem of plants. We explain this linkage by the regulation of the sizes of the nuclei catalysing freezing and drought cavitation. Our results offer better understanding of the similarities of adaption of plants to cold and drought stress, and offer new insights into the ability of plants to adapt to the changing environment.
publisher Nature Publishing Group
publishDate 2013
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3686780/
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