Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities

Detalhes bibliográficos
Autor(a) principal: Pedroso-De-Moraes, Cristiano
Data de Publicação: 2016
Outros Autores: De Souza-Leal, Thiago [UNESP], Saoncella, Alinne L., De Almeida, Marcílio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.15517/lank.v16i1.23746
http://hdl.handle.net/11449/168611
Resumo: To elucidate the factors which control the flower phenotypic plasticity of Catasetum fimbriatum, studies focusing the floral development of the species were performed. The treatments were: high light intensity (1613 μmol.m-2.s-1); low light intensity (454 μmol.m-2.s-1) and mean light intensity (827 μmol.m-2.s-1). The floral morphology and anatomy were analyzed to evaluate of the sequence of tissue development involved in the sexual differentiation. We found the presence of cell cluster with meristematic features in the ovaries and gynostemium of the male and female diclinous flowers. These are responsible for the definition of the sexual expression of the species, in the dependence of the environmental stimulus, related to the endogenous concentration of ethylene, allowing, consequently, the dedifferentiation and re-differentiation of those clusters in the sexual determination of the flowers. There were no anatomical differences in floral tissues in different treatments.
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spelling Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensitiesAnatomyOrchidSexual expressionTo elucidate the factors which control the flower phenotypic plasticity of Catasetum fimbriatum, studies focusing the floral development of the species were performed. The treatments were: high light intensity (1613 μmol.m-2.s-1); low light intensity (454 μmol.m-2.s-1) and mean light intensity (827 μmol.m-2.s-1). The floral morphology and anatomy were analyzed to evaluate of the sequence of tissue development involved in the sexual differentiation. We found the presence of cell cluster with meristematic features in the ovaries and gynostemium of the male and female diclinous flowers. These are responsible for the definition of the sexual expression of the species, in the dependence of the environmental stimulus, related to the endogenous concentration of ethylene, allowing, consequently, the dedifferentiation and re-differentiation of those clusters in the sexual determination of the flowers. There were no anatomical differences in floral tissues in different treatments.Biological Science Department of Centro Universitário Hermínio Ometto - UNIARARAS Rua Maximiliano Baruto, 500, Jd. UniversitárioBiological Science Department of Universidade Estadual Paulista - UNESP, P.O. Box 199Biothecnology Department of Universidade Federal de São Carlos - UFSCar, P.O. Box 198, Rodovia AnhangueraBiological Science Department Escola Superior de Agricultura Luiz de Queiroz/Universidade de Sao Paulo - ESALQ/USP, P.O. Box. 168Biological Science Department of Universidade Estadual Paulista - UNESP, P.O. Box 199Rua Maximiliano BarutoUniversidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)Universidade de São Paulo (USP)Pedroso-De-Moraes, CristianoDe Souza-Leal, Thiago [UNESP]Saoncella, Alinne L.De Almeida, Marcílio2018-12-11T16:42:11Z2018-12-11T16:42:11Z2016-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article47-56application/pdfhttp://dx.doi.org/10.15517/lank.v16i1.23746Lankesteriana, v. 16, n. 1, p. 47-56, 2016.2215-20671409-3871http://hdl.handle.net/11449/16861110.15517/lank.v16i1.237462-s2.0-849648088812-s2.0-84964808881.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLankesteriana0,458info:eu-repo/semantics/openAccess2023-11-30T06:21:18Zoai:repositorio.unesp.br:11449/168611Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:11:59.548791Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
title Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
spellingShingle Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
Pedroso-De-Moraes, Cristiano
Anatomy
Orchid
Sexual expression
title_short Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
title_full Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
title_fullStr Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
title_full_unstemmed Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
title_sort Floral sexual differentiation in Catasetum Fimbriatum (catasetinae, orchidaceae) exposed to different light intensities
author Pedroso-De-Moraes, Cristiano
author_facet Pedroso-De-Moraes, Cristiano
De Souza-Leal, Thiago [UNESP]
Saoncella, Alinne L.
De Almeida, Marcílio
author_role author
author2 De Souza-Leal, Thiago [UNESP]
Saoncella, Alinne L.
De Almeida, Marcílio
author2_role author
author
author
dc.contributor.none.fl_str_mv Rua Maximiliano Baruto
Universidade Estadual Paulista (Unesp)
Universidade Federal de São Carlos (UFSCar)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Pedroso-De-Moraes, Cristiano
De Souza-Leal, Thiago [UNESP]
Saoncella, Alinne L.
De Almeida, Marcílio
dc.subject.por.fl_str_mv Anatomy
Orchid
Sexual expression
topic Anatomy
Orchid
Sexual expression
description To elucidate the factors which control the flower phenotypic plasticity of Catasetum fimbriatum, studies focusing the floral development of the species were performed. The treatments were: high light intensity (1613 μmol.m-2.s-1); low light intensity (454 μmol.m-2.s-1) and mean light intensity (827 μmol.m-2.s-1). The floral morphology and anatomy were analyzed to evaluate of the sequence of tissue development involved in the sexual differentiation. We found the presence of cell cluster with meristematic features in the ovaries and gynostemium of the male and female diclinous flowers. These are responsible for the definition of the sexual expression of the species, in the dependence of the environmental stimulus, related to the endogenous concentration of ethylene, allowing, consequently, the dedifferentiation and re-differentiation of those clusters in the sexual determination of the flowers. There were no anatomical differences in floral tissues in different treatments.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
2018-12-11T16:42:11Z
2018-12-11T16:42:11Z
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/10.15517/lank.v16i1.23746
Lankesteriana, v. 16, n. 1, p. 47-56, 2016.
2215-2067
1409-3871
http://hdl.handle.net/11449/168611
10.15517/lank.v16i1.23746
2-s2.0-84964808881
2-s2.0-84964808881.pdf
url http://dx.doi.org/10.15517/lank.v16i1.23746
http://hdl.handle.net/11449/168611
identifier_str_mv Lankesteriana, v. 16, n. 1, p. 47-56, 2016.
2215-2067
1409-3871
10.15517/lank.v16i1.23746
2-s2.0-84964808881
2-s2.0-84964808881.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Lankesteriana
0,458
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 47-56
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
_version_ 1808129031982284800

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