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A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus

Leaf initiation rate is largely determined by the apical bud temperature even when apical bud temperature largely deviates from the temperature of other plant organs. We have long known that the rate of leaf initiation (LIR) is highly sensitive to temperature, but previous studies in dicots have not...

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Autores principales: Savvides, Andreas, Dieleman, Janneke A., van Ieperen, Wim, Marcelis, Leo F. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4819741/
https://www.ncbi.nlm.nih.gov/pubmed/26769623
http://dx.doi.org/10.1007/s00425-015-2464-4
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author Savvides, Andreas
Dieleman, Janneke A.
van Ieperen, Wim
Marcelis, Leo F. M.
author_facet Savvides, Andreas
Dieleman, Janneke A.
van Ieperen, Wim
Marcelis, Leo F. M.
author_sort Savvides, Andreas
collection PubMed
description Leaf initiation rate is largely determined by the apical bud temperature even when apical bud temperature largely deviates from the temperature of other plant organs. We have long known that the rate of leaf initiation (LIR) is highly sensitive to temperature, but previous studies in dicots have not rigorously demonstrated that apical bud temperature controls LIR independent of other plant organs temperature. Many models assume that apical bud and leaf temperature are the same. In some environments, the temperature of the apical bud, where leaf initiation occurs, may differ by several degrees Celsius from the temperature of other plant organs. In a 28-days study, we maintained temperature differences between the apical bud and the rest of the individual Cucumis sativus plants from −7 to +8 °C by enclosing the apical buds in transparent, temperature-controlled, flow-through, spheres. Our results demonstrate that LIR was completely determined by apical bud temperature independent of other plant organs temperature. These results emphasize the need to measure or model apical bud temperatures in dicots to improve the prediction of crop development rates in simulation models.
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spelling pubmed-48197412016-04-10 A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus Savvides, Andreas Dieleman, Janneke A. van Ieperen, Wim Marcelis, Leo F. M. Planta Short Communication Leaf initiation rate is largely determined by the apical bud temperature even when apical bud temperature largely deviates from the temperature of other plant organs. We have long known that the rate of leaf initiation (LIR) is highly sensitive to temperature, but previous studies in dicots have not rigorously demonstrated that apical bud temperature controls LIR independent of other plant organs temperature. Many models assume that apical bud and leaf temperature are the same. In some environments, the temperature of the apical bud, where leaf initiation occurs, may differ by several degrees Celsius from the temperature of other plant organs. In a 28-days study, we maintained temperature differences between the apical bud and the rest of the individual Cucumis sativus plants from −7 to +8 °C by enclosing the apical buds in transparent, temperature-controlled, flow-through, spheres. Our results demonstrate that LIR was completely determined by apical bud temperature independent of other plant organs temperature. These results emphasize the need to measure or model apical bud temperatures in dicots to improve the prediction of crop development rates in simulation models. Springer Berlin Heidelberg 2016-01-14 2016 /pmc/articles/PMC4819741/ /pubmed/26769623 http://dx.doi.org/10.1007/s00425-015-2464-4 Text en © The Author(s) 2016 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Short Communication
Savvides, Andreas
Dieleman, Janneke A.
van Ieperen, Wim
Marcelis, Leo F. M.
A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus
title A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus
title_full A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus
title_fullStr A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus
title_full_unstemmed A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus
title_short A unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot Cucumis sativus
title_sort unique approach to demonstrating that apical bud temperature specifically determines leaf initiation rate in the dicot cucumis sativus
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4819741/
https://www.ncbi.nlm.nih.gov/pubmed/26769623
http://dx.doi.org/10.1007/s00425-015-2464-4
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