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Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)

Floral longevity (FL) determines the balance between pollination success and flower maintenance. While a longer floral duration enhances the ability of plants to attract pollinators, it can be detrimental if it negatively affects overall plant fitness. Longer-lived leaves display a positive correlat...

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Autores principales: Zhang, Feng-Ping, Yang, Ying-Jie, Yang, Qiu-Yun, Zhang, Wei, Brodribb, Tim J., Hao, Guang-You, Hu, Hong, Zhang, Shi-Bao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5383722/
https://www.ncbi.nlm.nih.gov/pubmed/28439283
http://dx.doi.org/10.3389/fpls.2017.00501
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author Zhang, Feng-Ping
Yang, Ying-Jie
Yang, Qiu-Yun
Zhang, Wei
Brodribb, Tim J.
Hao, Guang-You
Hu, Hong
Zhang, Shi-Bao
author_facet Zhang, Feng-Ping
Yang, Ying-Jie
Yang, Qiu-Yun
Zhang, Wei
Brodribb, Tim J.
Hao, Guang-You
Hu, Hong
Zhang, Shi-Bao
author_sort Zhang, Feng-Ping
collection PubMed
description Floral longevity (FL) determines the balance between pollination success and flower maintenance. While a longer floral duration enhances the ability of plants to attract pollinators, it can be detrimental if it negatively affects overall plant fitness. Longer-lived leaves display a positive correlation with their dry mass per unit area, which influences leaf construction costs and physiological functions. However, little is known about the association among FL and floral dry mass per unit area (FMA) and water maintenance traits. We investigated whether increased FL might incur similar costs. Our assessment of 11 species of Paphiopedilum (slipper orchids) considered the impact of FMA and flower water-maintenance characteristics on FL. We found a positive relationship between FL and FMA. Floral longevity showed significant correlations with osmotic potential at the turgor loss and bulk modulus of elasticity but not with FA. Neither the size nor the mass per area was correlated between leaves and flowers, indicating that flower and leaf economic traits evolved independently. Therefore, our findings demonstrate a clear relationship between FL and the capacity to maintain water status in the flower. These economic constraints also indicate that extending the flower life span can have a high physiological cost in Paphiopedilum.
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spelling pubmed-53837222017-04-24 Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae) Zhang, Feng-Ping Yang, Ying-Jie Yang, Qiu-Yun Zhang, Wei Brodribb, Tim J. Hao, Guang-You Hu, Hong Zhang, Shi-Bao Front Plant Sci Plant Science Floral longevity (FL) determines the balance between pollination success and flower maintenance. While a longer floral duration enhances the ability of plants to attract pollinators, it can be detrimental if it negatively affects overall plant fitness. Longer-lived leaves display a positive correlation with their dry mass per unit area, which influences leaf construction costs and physiological functions. However, little is known about the association among FL and floral dry mass per unit area (FMA) and water maintenance traits. We investigated whether increased FL might incur similar costs. Our assessment of 11 species of Paphiopedilum (slipper orchids) considered the impact of FMA and flower water-maintenance characteristics on FL. We found a positive relationship between FL and FMA. Floral longevity showed significant correlations with osmotic potential at the turgor loss and bulk modulus of elasticity but not with FA. Neither the size nor the mass per area was correlated between leaves and flowers, indicating that flower and leaf economic traits evolved independently. Therefore, our findings demonstrate a clear relationship between FL and the capacity to maintain water status in the flower. These economic constraints also indicate that extending the flower life span can have a high physiological cost in Paphiopedilum. Frontiers Media S.A. 2017-04-07 /pmc/articles/PMC5383722/ /pubmed/28439283 http://dx.doi.org/10.3389/fpls.2017.00501 Text en Copyright © 2017 Zhang, Yang, Yang, Zhang, Brodribb, Hao, Hu and Zhang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Zhang, Feng-Ping
Yang, Ying-Jie
Yang, Qiu-Yun
Zhang, Wei
Brodribb, Tim J.
Hao, Guang-You
Hu, Hong
Zhang, Shi-Bao
Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
title Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
title_full Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
title_fullStr Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
title_full_unstemmed Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
title_short Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
title_sort floral mass per area and water maintenance traits are correlated with floral longevity in paphiopedilum (orchidaceae)
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5383722/
https://www.ncbi.nlm.nih.gov/pubmed/28439283
http://dx.doi.org/10.3389/fpls.2017.00501
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