Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.5/12396 |
Resumo: | Worldwide, extensive agricultural losses are attributed to drought, often in combination with heat in Mediterranean climate regions, where grapevine traditionally grows. The available scenarios for climate change suggest increases in aridity in these regions. Under natural conditions plants are affected by a combination of stresses, triggering synergistic or antagonistic physiological, metabolic or transcriptomic responses unique to the combination. However the study of such stresses in a controlled environment can elucidate important mechanisms by allowing the separation of the effects of individual stresses. To gather those effects, cuttings of two grapevine varieties, Touriga Nacional (TN) and Trincadeira (TR), were grown under controlled conditions and subjected to three abiotic stresses (drought – WS, heat – HS and high light – LS) individually and in combination two-by-two (WSHS, WSLS, HSLS) or all three (WSHSLS). Photosynthesis, water status, contents of H2O2, abscisic acid and metabolites of the ascorbate-glutathione cycle were measured in the leaves. Common and distinct response features were identified in the different stress combinations. Photosynthesis was not hindered in TN by LS, while even individual stresses severely affect photosynthesis in TR. Abscisic acid may be implicated in grapevine osmotic responses since it is correlated with tolerance parameters, especially in combined stresses involving drought. Overall, the responses to drought-including treatments were clearly distinct to those without drought. From the specific behaviours of the varieties, it can be concluded that TN shows a higher capacity for heat dissipation and for withstanding high light intensities, indicating better adjustment to warm conditions, provided that water supply is plentiful |
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Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stressabiotic stressabscisic acidascorbate-glutathione cyclechlorophyll fluorescencegrapevinephotosynthesisROSWorldwide, extensive agricultural losses are attributed to drought, often in combination with heat in Mediterranean climate regions, where grapevine traditionally grows. The available scenarios for climate change suggest increases in aridity in these regions. Under natural conditions plants are affected by a combination of stresses, triggering synergistic or antagonistic physiological, metabolic or transcriptomic responses unique to the combination. However the study of such stresses in a controlled environment can elucidate important mechanisms by allowing the separation of the effects of individual stresses. To gather those effects, cuttings of two grapevine varieties, Touriga Nacional (TN) and Trincadeira (TR), were grown under controlled conditions and subjected to three abiotic stresses (drought – WS, heat – HS and high light – LS) individually and in combination two-by-two (WSHS, WSLS, HSLS) or all three (WSHSLS). Photosynthesis, water status, contents of H2O2, abscisic acid and metabolites of the ascorbate-glutathione cycle were measured in the leaves. Common and distinct response features were identified in the different stress combinations. Photosynthesis was not hindered in TN by LS, while even individual stresses severely affect photosynthesis in TR. Abscisic acid may be implicated in grapevine osmotic responses since it is correlated with tolerance parameters, especially in combined stresses involving drought. Overall, the responses to drought-including treatments were clearly distinct to those without drought. From the specific behaviours of the varieties, it can be concluded that TN shows a higher capacity for heat dissipation and for withstanding high light intensities, indicating better adjustment to warm conditions, provided that water supply is plentifulGerman Botanical Society and The Royal Botanical Society of the NetherlandsRepositório da Universidade de LisboaCarvalho, L.C.Coito, J.L.Gonçalves, E.F.Chaves, M.M.Amâncio, S.2016-11-07T15:07:12Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/12396engCarvalho L. C., Coito J. L., Gonçalves E.,· Chaves M. M, Amâncio S. (2015) Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stresses. Plant Biol. 10/201510.1111/plb.12410info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:42:35Zoai:www.repository.utl.pt:10400.5/12396Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:58:31.533679Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
title |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
spellingShingle |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress Carvalho, L.C. abiotic stress abscisic acid ascorbate-glutathione cycle chlorophyll fluorescence grapevine photosynthesis ROS |
title_short |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
title_full |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
title_fullStr |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
title_full_unstemmed |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
title_sort |
Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stress |
author |
Carvalho, L.C. |
author_facet |
Carvalho, L.C. Coito, J.L. Gonçalves, E.F. Chaves, M.M. Amâncio, S. |
author_role |
author |
author2 |
Coito, J.L. Gonçalves, E.F. Chaves, M.M. Amâncio, S. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Carvalho, L.C. Coito, J.L. Gonçalves, E.F. Chaves, M.M. Amâncio, S. |
dc.subject.por.fl_str_mv |
abiotic stress abscisic acid ascorbate-glutathione cycle chlorophyll fluorescence grapevine photosynthesis ROS |
topic |
abiotic stress abscisic acid ascorbate-glutathione cycle chlorophyll fluorescence grapevine photosynthesis ROS |
description |
Worldwide, extensive agricultural losses are attributed to drought, often in combination with heat in Mediterranean climate regions, where grapevine traditionally grows. The available scenarios for climate change suggest increases in aridity in these regions. Under natural conditions plants are affected by a combination of stresses, triggering synergistic or antagonistic physiological, metabolic or transcriptomic responses unique to the combination. However the study of such stresses in a controlled environment can elucidate important mechanisms by allowing the separation of the effects of individual stresses. To gather those effects, cuttings of two grapevine varieties, Touriga Nacional (TN) and Trincadeira (TR), were grown under controlled conditions and subjected to three abiotic stresses (drought – WS, heat – HS and high light – LS) individually and in combination two-by-two (WSHS, WSLS, HSLS) or all three (WSHSLS). Photosynthesis, water status, contents of H2O2, abscisic acid and metabolites of the ascorbate-glutathione cycle were measured in the leaves. Common and distinct response features were identified in the different stress combinations. Photosynthesis was not hindered in TN by LS, while even individual stresses severely affect photosynthesis in TR. Abscisic acid may be implicated in grapevine osmotic responses since it is correlated with tolerance parameters, especially in combined stresses involving drought. Overall, the responses to drought-including treatments were clearly distinct to those without drought. From the specific behaviours of the varieties, it can be concluded that TN shows a higher capacity for heat dissipation and for withstanding high light intensities, indicating better adjustment to warm conditions, provided that water supply is plentiful |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z 2016-11-07T15:07:12Z |
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://hdl.handle.net/10400.5/12396 |
url |
http://hdl.handle.net/10400.5/12396 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carvalho L. C., Coito J. L., Gonçalves E.,· Chaves M. M, Amâncio S. (2015) Differential physiological response of the grapevine varieties Touriga Nacional and Trincadeira to combined heat, drought and light stresses. Plant Biol. 10/2015 10.1111/plb.12410 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
German Botanical Society and The Royal Botanical Society of the Netherlands |
publisher.none.fl_str_mv |
German Botanical Society and The Royal Botanical Society of the Netherlands |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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