Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s40626-022-00244-2 http://hdl.handle.net/11449/240902 |
Resumo: | Increases of air temperature due to global warming suggest that plants could be exposed to temperatures above their optimum range for performing specific physiological functions in the future. Declines in carbon exchange rates would lead to significant decreases in species performance, particularly in those lacking traits associated to heat tolerance. Savannas and semi-deciduous forests are ecosystems with high biological diversity, scattered throughout the Neotropical landscape, and very dynamic areas controlled by species traits. Significant increases in air temperatures can affect such areas if plant species of these forests lack heat tolerance. We performed heat tolerance assays to obtain T50 values of the photosystem II (PSII) of 30 Neotropical tree species from a savanna (15 species) and a semi-deciduous forest (15 species). Our goal was to test whether the typical savanna species are more heat-tolerant than semi-deciduous forest species. We also assessed if T50 was correlated with leaf morphological traits such as specific leaf area and leaf thickness. We found savanna tree leaves with lower specific leaf area, higher thickness, and higher T50 values than semi-deciduous forest plants (49.36 °C vs. 47.65 °C, respectively). Specific leaf area was negatively correlated to T50 values. Our findings suggest that semi-deciduous forest species would be more affected by temperature increases than savanna species. Whereas species traits play an important role in the dynamics of forest–savanna areas, savanna species would be favored under warmer temperatures. |
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Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest speciesAtlantic ForestCerradoHeat toleranceSpecific leaf areaIncreases of air temperature due to global warming suggest that plants could be exposed to temperatures above their optimum range for performing specific physiological functions in the future. Declines in carbon exchange rates would lead to significant decreases in species performance, particularly in those lacking traits associated to heat tolerance. Savannas and semi-deciduous forests are ecosystems with high biological diversity, scattered throughout the Neotropical landscape, and very dynamic areas controlled by species traits. Significant increases in air temperatures can affect such areas if plant species of these forests lack heat tolerance. We performed heat tolerance assays to obtain T50 values of the photosystem II (PSII) of 30 Neotropical tree species from a savanna (15 species) and a semi-deciduous forest (15 species). Our goal was to test whether the typical savanna species are more heat-tolerant than semi-deciduous forest species. We also assessed if T50 was correlated with leaf morphological traits such as specific leaf area and leaf thickness. We found savanna tree leaves with lower specific leaf area, higher thickness, and higher T50 values than semi-deciduous forest plants (49.36 °C vs. 47.65 °C, respectively). Specific leaf area was negatively correlated to T50 values. Our findings suggest that semi-deciduous forest species would be more affected by temperature increases than savanna species. Whereas species traits play an important role in the dynamics of forest–savanna areas, savanna species would be favored under warmer temperatures.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Programa de Pós-Graduação em Ciências Biológicas (Biologia Vegetal) Instituto de Biociências Universidade Estadual Paulista (UNESP), Av. 24-A, 1515, SPDepartamento de Biologia Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castellane S/N, SPPrograma de Pós-Graduação em Ciências Biológicas (Biologia Vegetal) Instituto de Biociências Universidade Estadual Paulista (UNESP), Av. 24-A, 1515, SPDepartamento de Biologia Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castellane S/N, SPCNPq: 302897/2018-6CAPES: Finance Code 001Universidade Estadual Paulista (UNESP)Silva, Bianca Helena Porfírio da [UNESP]Rossatto, Davi Rodrigo [UNESP]2023-03-01T20:37:44Z2023-03-01T20:37:44Z2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article227-237http://dx.doi.org/10.1007/s40626-022-00244-2Theoretical and Experimental Plant Physiology, v. 34, n. 2, p. 227-237, 2022.2197-0025http://hdl.handle.net/11449/24090210.1007/s40626-022-00244-22-s2.0-85129143879Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTheoretical and Experimental Plant Physiologyinfo:eu-repo/semantics/openAccess2024-06-06T13:05:10Zoai:repositorio.unesp.br:11449/240902Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:42:25.340324Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
title |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
spellingShingle |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species Silva, Bianca Helena Porfírio da [UNESP] Atlantic Forest Cerrado Heat tolerance Specific leaf area |
title_short |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
title_full |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
title_fullStr |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
title_full_unstemmed |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
title_sort |
Leaves of neotropical savanna tree species are more heat-tolerant than leaves of semi-deciduous forest species |
author |
Silva, Bianca Helena Porfírio da [UNESP] |
author_facet |
Silva, Bianca Helena Porfírio da [UNESP] Rossatto, Davi Rodrigo [UNESP] |
author_role |
author |
author2 |
Rossatto, Davi Rodrigo [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Silva, Bianca Helena Porfírio da [UNESP] Rossatto, Davi Rodrigo [UNESP] |
dc.subject.por.fl_str_mv |
Atlantic Forest Cerrado Heat tolerance Specific leaf area |
topic |
Atlantic Forest Cerrado Heat tolerance Specific leaf area |
description |
Increases of air temperature due to global warming suggest that plants could be exposed to temperatures above their optimum range for performing specific physiological functions in the future. Declines in carbon exchange rates would lead to significant decreases in species performance, particularly in those lacking traits associated to heat tolerance. Savannas and semi-deciduous forests are ecosystems with high biological diversity, scattered throughout the Neotropical landscape, and very dynamic areas controlled by species traits. Significant increases in air temperatures can affect such areas if plant species of these forests lack heat tolerance. We performed heat tolerance assays to obtain T50 values of the photosystem II (PSII) of 30 Neotropical tree species from a savanna (15 species) and a semi-deciduous forest (15 species). Our goal was to test whether the typical savanna species are more heat-tolerant than semi-deciduous forest species. We also assessed if T50 was correlated with leaf morphological traits such as specific leaf area and leaf thickness. We found savanna tree leaves with lower specific leaf area, higher thickness, and higher T50 values than semi-deciduous forest plants (49.36 °C vs. 47.65 °C, respectively). Specific leaf area was negatively correlated to T50 values. Our findings suggest that semi-deciduous forest species would be more affected by temperature increases than savanna species. Whereas species traits play an important role in the dynamics of forest–savanna areas, savanna species would be favored under warmer temperatures. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-01 2023-03-01T20:37:44Z 2023-03-01T20:37:44Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s40626-022-00244-2 Theoretical and Experimental Plant Physiology, v. 34, n. 2, p. 227-237, 2022. 2197-0025 http://hdl.handle.net/11449/240902 10.1007/s40626-022-00244-2 2-s2.0-85129143879 |
url |
http://dx.doi.org/10.1007/s40626-022-00244-2 http://hdl.handle.net/11449/240902 |
identifier_str_mv |
Theoretical and Experimental Plant Physiology, v. 34, n. 2, p. 227-237, 2022. 2197-0025 10.1007/s40626-022-00244-2 2-s2.0-85129143879 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Theoretical and Experimental Plant Physiology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
227-237 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129349202739200 |