Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.envexpbot.2017.07.001 http://hdl.handle.net/11449/174883 |
Resumo: | Experimental manipulations are essential for understanding the causal factors of plant growth and cambial activity. Here, we studied the potential effect of water availability and natural variation of day length and temperature on cambial activity in Cordiera concolor (Cham.) Kuntze, an evergreen tropical species. Experiments were conducted in a greenhouse using ninety one-year-old plants divided into two groups. Each group was observed for five weeks during two different times of the year (early spring and late summer). Plants were subjected to three distinct water regimes (waterlogging, field capacity and water deficit). Temperature and day length were recorded daily and stem samples were taken weekly during both sampling intervals. Anatomical procedures were used to describe the cambial activity per stem. Our results suggest that soil water content and its influence on cambial activity depend on the time of year, while cambial stimulus was positively related to day length, independent of the time of year. In early spring, cambial activity was stimulated by an increase of day length, regardless of water supply. In contrast, in late summer, cambial dormancy was delayed in waterlogged plants and advanced in plants subjected to a water deficit, followed by decreasing day length. Analyses of the wood anatomy showed that the marginal bands of axial parenchyma were initial. Our study highlights a more complex scenario of plant functioning and its causal factors in tropical systems. |
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Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen speciesCordiera concolorEarly springLate summerSoil water availabilityTropical speciesExperimental manipulations are essential for understanding the causal factors of plant growth and cambial activity. Here, we studied the potential effect of water availability and natural variation of day length and temperature on cambial activity in Cordiera concolor (Cham.) Kuntze, an evergreen tropical species. Experiments were conducted in a greenhouse using ninety one-year-old plants divided into two groups. Each group was observed for five weeks during two different times of the year (early spring and late summer). Plants were subjected to three distinct water regimes (waterlogging, field capacity and water deficit). Temperature and day length were recorded daily and stem samples were taken weekly during both sampling intervals. Anatomical procedures were used to describe the cambial activity per stem. Our results suggest that soil water content and its influence on cambial activity depend on the time of year, while cambial stimulus was positively related to day length, independent of the time of year. In early spring, cambial activity was stimulated by an increase of day length, regardless of water supply. In contrast, in late summer, cambial dormancy was delayed in waterlogged plants and advanced in plants subjected to a water deficit, followed by decreasing day length. Analyses of the wood anatomy showed that the marginal bands of axial parenchyma were initial. Our study highlights a more complex scenario of plant functioning and its causal factors in tropical systems.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Programa de Pós-Graduação em Ciências Biológicas (Botânica) Universidade Estadual Paulista (UNESP) Instituto de Biociências de BotucatuUniversidade Estadual Paulista (UNESP) Faculdade de Ciências Agronômicas de BotucatuUniversidade Federal do ABC Centro de Ciências Naturais e HumanasPrograma de Pós-Graduação em Ciências Biológicas (Botânica) Universidade Estadual Paulista (UNESP) Instituto de Biociências de BotucatuUniversidade Estadual Paulista (UNESP) Faculdade de Ciências Agronômicas de BotucatuFAPESP: 2015/14954-1FAPESP: FAPESP − No. 2013/05700-0Universidade Estadual Paulista (Unesp)Universidade Federal do ABC (UFABC)de Lara, Natália Oliveira Totti [UNESP]da Silva, Magali Ribeiro [UNESP]Nogueira, Anselmo [UNESP]Marcati, Carmen Regina [UNESP]2018-12-11T17:13:17Z2018-12-11T17:13:17Z2017-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article50-59application/pdfhttp://dx.doi.org/10.1016/j.envexpbot.2017.07.001Environmental and Experimental Botany, v. 141, p. 50-59.0098-8472http://hdl.handle.net/11449/17488310.1016/j.envexpbot.2017.07.0012-s2.0-850223385332-s2.0-85022338533.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental and Experimental Botany1,376info:eu-repo/semantics/openAccess2024-01-11T06:28:14Zoai:repositorio.unesp.br:11449/174883Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:41:35.237972Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
title |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
spellingShingle |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species de Lara, Natália Oliveira Totti [UNESP] Cordiera concolor Early spring Late summer Soil water availability Tropical species |
title_short |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
title_full |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
title_fullStr |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
title_full_unstemmed |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
title_sort |
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species |
author |
de Lara, Natália Oliveira Totti [UNESP] |
author_facet |
de Lara, Natália Oliveira Totti [UNESP] da Silva, Magali Ribeiro [UNESP] Nogueira, Anselmo [UNESP] Marcati, Carmen Regina [UNESP] |
author_role |
author |
author2 |
da Silva, Magali Ribeiro [UNESP] Nogueira, Anselmo [UNESP] Marcati, Carmen Regina [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal do ABC (UFABC) |
dc.contributor.author.fl_str_mv |
de Lara, Natália Oliveira Totti [UNESP] da Silva, Magali Ribeiro [UNESP] Nogueira, Anselmo [UNESP] Marcati, Carmen Regina [UNESP] |
dc.subject.por.fl_str_mv |
Cordiera concolor Early spring Late summer Soil water availability Tropical species |
topic |
Cordiera concolor Early spring Late summer Soil water availability Tropical species |
description |
Experimental manipulations are essential for understanding the causal factors of plant growth and cambial activity. Here, we studied the potential effect of water availability and natural variation of day length and temperature on cambial activity in Cordiera concolor (Cham.) Kuntze, an evergreen tropical species. Experiments were conducted in a greenhouse using ninety one-year-old plants divided into two groups. Each group was observed for five weeks during two different times of the year (early spring and late summer). Plants were subjected to three distinct water regimes (waterlogging, field capacity and water deficit). Temperature and day length were recorded daily and stem samples were taken weekly during both sampling intervals. Anatomical procedures were used to describe the cambial activity per stem. Our results suggest that soil water content and its influence on cambial activity depend on the time of year, while cambial stimulus was positively related to day length, independent of the time of year. In early spring, cambial activity was stimulated by an increase of day length, regardless of water supply. In contrast, in late summer, cambial dormancy was delayed in waterlogged plants and advanced in plants subjected to a water deficit, followed by decreasing day length. Analyses of the wood anatomy showed that the marginal bands of axial parenchyma were initial. Our study highlights a more complex scenario of plant functioning and its causal factors in tropical systems. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 2018-12-11T17:13:17Z 2018-12-11T17:13:17Z |
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/10.1016/j.envexpbot.2017.07.001 Environmental and Experimental Botany, v. 141, p. 50-59. 0098-8472 http://hdl.handle.net/11449/174883 10.1016/j.envexpbot.2017.07.001 2-s2.0-85022338533 2-s2.0-85022338533.pdf |
url |
http://dx.doi.org/10.1016/j.envexpbot.2017.07.001 http://hdl.handle.net/11449/174883 |
identifier_str_mv |
Environmental and Experimental Botany, v. 141, p. 50-59. 0098-8472 10.1016/j.envexpbot.2017.07.001 2-s2.0-85022338533 2-s2.0-85022338533.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental and Experimental Botany 1,376 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
50-59 application/pdf |
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 |
|
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1808129451499716608 |