Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae)
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0001-37652012005000028 http://hdl.handle.net/11449/73347 |
Resumo: | Considering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were fixed in FAA 50, preserved in ethanol 70% and sectioned at its medium region using razor blades. The sections were stained with 0.05% astra blue and safranin and mounted in glycerin. For the identification of starch we used Lugol ́s solution; for lignin, floroglucin chloridric; for lipids, Sudan III, and for flavanoids, potassium hydroxide. The relevant aspects were registered using a digital camera joined with an Olympus microspope (BX51 model). The structural similarities of all roots support the placement of the subtribe Catasetinae into the monophyletic tribe Cymbidieae. Some root features are restricted to one or two taxa and can be useful in the systematics of the subtribe. For example, the occurrence of flavonoidic crystals characterizes the genera Catasetum and Cychnodes, and the number of the velamen layers and the shape of the epivelamen cells are useful to confirm the taxonomic position of Clowesia amazonica. The presence of velamen and flavonoidic crystals was interpreted as an adaptation to the epiphytic habit. |
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Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae)EpiphytismMorphoanatomyOrchidSystematicBrazilclassificationhistologyOrchidaceaeplant rootPlant RootsConsidering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were fixed in FAA 50, preserved in ethanol 70% and sectioned at its medium region using razor blades. The sections were stained with 0.05% astra blue and safranin and mounted in glycerin. For the identification of starch we used Lugol ́s solution; for lignin, floroglucin chloridric; for lipids, Sudan III, and for flavanoids, potassium hydroxide. The relevant aspects were registered using a digital camera joined with an Olympus microspope (BX51 model). The structural similarities of all roots support the placement of the subtribe Catasetinae into the monophyletic tribe Cymbidieae. Some root features are restricted to one or two taxa and can be useful in the systematics of the subtribe. For example, the occurrence of flavonoidic crystals characterizes the genera Catasetum and Cychnodes, and the number of the velamen layers and the shape of the epivelamen cells are useful to confirm the taxonomic position of Clowesia amazonica. The presence of velamen and flavonoidic crystals was interpreted as an adaptation to the epiphytic habit.Centro Universitário Hermínio Ometto (UNIARARAS) Jd. Universitário, Av. Dr. Maximiliano Baruto, 500, 13607-339 Araras, SPUniversidade Federal de Mato Grosso Herbário-Depto de Botânica, Caixa Postal 198, Centro, 78005-970 Cuiabá, MTDepartamento de Botânica IBUNESP, Caixa Postal 199, 13506-900 Rio Claro, SPDepartamento de Botânica IBUNESP, Caixa Postal 199, 13506-900 Rio Claro, SPJd. UniversitárioHerbário-Depto de BotânicaUniversidade Estadual Paulista (Unesp)Pedroso de Moraes, Cristianode Souza-Leal, ThiagoBrescansin, Rafael L.Pettini-Benelli, AdarildaGraças Sajo, Maria Das [UNESP]2014-05-27T11:26:31Z2014-05-27T11:26:31Z2012-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article455-467application/pdfhttp://dx.doi.org/10.1590/S0001-37652012005000028Anais da Academia Brasileira de Ciencias, v. 84, n. 2, p. 455-467, 2012.0001-37651678-2690http://hdl.handle.net/11449/7334710.1590/S0001-37652012005000028S0001-376520120050000282-s2.0-848717023922-s2.0-84871702392.pdf2126319926799273Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnais da Academia Brasileira de Ciências0.9560,4180,418info:eu-repo/semantics/openAccess2023-12-20T06:18:57Zoai:repositorio.unesp.br:11449/73347Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:48:05.287698Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
title |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
spellingShingle |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) Pedroso de Moraes, Cristiano Epiphytism Morphoanatomy Orchid Systematic Brazil classification histology Orchidaceae plant root Plant Roots |
title_short |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
title_full |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
title_fullStr |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
title_full_unstemmed |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
title_sort |
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) |
author |
Pedroso de Moraes, Cristiano |
author_facet |
Pedroso de Moraes, Cristiano de Souza-Leal, Thiago Brescansin, Rafael L. Pettini-Benelli, Adarilda Graças Sajo, Maria Das [UNESP] |
author_role |
author |
author2 |
de Souza-Leal, Thiago Brescansin, Rafael L. Pettini-Benelli, Adarilda Graças Sajo, Maria Das [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Jd. Universitário Herbário-Depto de Botânica Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pedroso de Moraes, Cristiano de Souza-Leal, Thiago Brescansin, Rafael L. Pettini-Benelli, Adarilda Graças Sajo, Maria Das [UNESP] |
dc.subject.por.fl_str_mv |
Epiphytism Morphoanatomy Orchid Systematic Brazil classification histology Orchidaceae plant root Plant Roots |
topic |
Epiphytism Morphoanatomy Orchid Systematic Brazil classification histology Orchidaceae plant root Plant Roots |
description |
Considering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were fixed in FAA 50, preserved in ethanol 70% and sectioned at its medium region using razor blades. The sections were stained with 0.05% astra blue and safranin and mounted in glycerin. For the identification of starch we used Lugol ́s solution; for lignin, floroglucin chloridric; for lipids, Sudan III, and for flavanoids, potassium hydroxide. The relevant aspects were registered using a digital camera joined with an Olympus microspope (BX51 model). The structural similarities of all roots support the placement of the subtribe Catasetinae into the monophyletic tribe Cymbidieae. Some root features are restricted to one or two taxa and can be useful in the systematics of the subtribe. For example, the occurrence of flavonoidic crystals characterizes the genera Catasetum and Cychnodes, and the number of the velamen layers and the shape of the epivelamen cells are useful to confirm the taxonomic position of Clowesia amazonica. The presence of velamen and flavonoidic crystals was interpreted as an adaptation to the epiphytic habit. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-01 2014-05-27T11:26:31Z 2014-05-27T11:26:31Z |
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/10.1590/S0001-37652012005000028 Anais da Academia Brasileira de Ciencias, v. 84, n. 2, p. 455-467, 2012. 0001-3765 1678-2690 http://hdl.handle.net/11449/73347 10.1590/S0001-37652012005000028 S0001-37652012005000028 2-s2.0-84871702392 2-s2.0-84871702392.pdf 2126319926799273 |
url |
http://dx.doi.org/10.1590/S0001-37652012005000028 http://hdl.handle.net/11449/73347 |
identifier_str_mv |
Anais da Academia Brasileira de Ciencias, v. 84, n. 2, p. 455-467, 2012. 0001-3765 1678-2690 10.1590/S0001-37652012005000028 S0001-37652012005000028 2-s2.0-84871702392 2-s2.0-84871702392.pdf 2126319926799273 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Anais da Academia Brasileira de Ciências 0.956 0,418 0,418 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
455-467 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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1808129250164736000 |