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Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta

Future environmental changes are projected to threaten plant populations near mountaintops, but plastic responses of plant traits that are related to demographic parameters may reduce the detrimental effects of altered environments. Despite its ecological significance, little is known about the intr...

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Autores principales: Jeong, Hyungsoon, Cho, Yong-Chan, Kim, Eunsuk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8501906/
https://www.ncbi.nlm.nih.gov/pubmed/34646436
http://dx.doi.org/10.1093/aobpla/plab061
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author Jeong, Hyungsoon
Cho, Yong-Chan
Kim, Eunsuk
author_facet Jeong, Hyungsoon
Cho, Yong-Chan
Kim, Eunsuk
author_sort Jeong, Hyungsoon
collection PubMed
description Future environmental changes are projected to threaten plant populations near mountaintops, but plastic responses of plant traits that are related to demographic parameters may reduce the detrimental effects of altered environments. Despite its ecological significance, little is known about the intraspecific variation of plasticity in alpine plant species such as Primula farinosa subsp. modesta. In this study, we investigated the plastic responses of plants at the early developmental stage from four P. farinosa natural populations in response to temperature and nitrogen deposition under laboratory conditions. Measured traits included plant survival, leaf number, rosette diameter, carbon assimilation rate and leaf chlorophyll content. In addition, we conducted a demographic survey of the natural populations to assess the plant’s performance at the early developmental stage in the field and evaluate the ecological implications of our experimental treatments. The seedling stage contributed to the projected population growth rate in natural conditions, and the growth and survival of seedlings in the field were comparable to those grown in the control treatment. In response to high temperature, plants exhibited lower survival but produced larger rosettes with more leaves. Nitrogen deposition had little effect on plant survival and plant size; however, it increased plant survival in one population and altered the effect of temperature on the carbon assimilation rate. Populations exhibited differential plasticity indexes of measured traits in response to environmental treatments. These results suggest that even though the plants suffer from high early mortality under increasing temperature, stimulated growth at a high temperature potentially contributes to the persistence of P. farinosa natural populations. Natural populations might face differential extinction risks due to distinctive plastic responses to altered environments.
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spelling pubmed-85019062021-10-12 Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta Jeong, Hyungsoon Cho, Yong-Chan Kim, Eunsuk AoB Plants Studies Future environmental changes are projected to threaten plant populations near mountaintops, but plastic responses of plant traits that are related to demographic parameters may reduce the detrimental effects of altered environments. Despite its ecological significance, little is known about the intraspecific variation of plasticity in alpine plant species such as Primula farinosa subsp. modesta. In this study, we investigated the plastic responses of plants at the early developmental stage from four P. farinosa natural populations in response to temperature and nitrogen deposition under laboratory conditions. Measured traits included plant survival, leaf number, rosette diameter, carbon assimilation rate and leaf chlorophyll content. In addition, we conducted a demographic survey of the natural populations to assess the plant’s performance at the early developmental stage in the field and evaluate the ecological implications of our experimental treatments. The seedling stage contributed to the projected population growth rate in natural conditions, and the growth and survival of seedlings in the field were comparable to those grown in the control treatment. In response to high temperature, plants exhibited lower survival but produced larger rosettes with more leaves. Nitrogen deposition had little effect on plant survival and plant size; however, it increased plant survival in one population and altered the effect of temperature on the carbon assimilation rate. Populations exhibited differential plasticity indexes of measured traits in response to environmental treatments. These results suggest that even though the plants suffer from high early mortality under increasing temperature, stimulated growth at a high temperature potentially contributes to the persistence of P. farinosa natural populations. Natural populations might face differential extinction risks due to distinctive plastic responses to altered environments. Oxford University Press 2021-09-19 /pmc/articles/PMC8501906/ /pubmed/34646436 http://dx.doi.org/10.1093/aobpla/plab061 Text en © The Author(s) 2021. Published by Oxford University Press on behalf of the Annals of Botany Company. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Studies
Jeong, Hyungsoon
Cho, Yong-Chan
Kim, Eunsuk
Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta
title Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta
title_full Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta
title_fullStr Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta
title_full_unstemmed Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta
title_short Differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, Primula farinosa subsp. modesta
title_sort differential plastic responses to temperature and nitrogen deposition in the subalpine plant species, primula farinosa subsp. modesta
topic Studies
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8501906/
https://www.ncbi.nlm.nih.gov/pubmed/34646436
http://dx.doi.org/10.1093/aobpla/plab061
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