Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids

Detalhes bibliográficos
Autor(a) principal: Moreira,Ana Sílvia Franco Pinheiro
Data de Publicação: 2008
Outros Autores: Isaias,Rosy Mary dos Santos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100011
Resumo: The present study compared roots of terrestrial and epiphytic Orchidaceae, analyzing the anatomical characteristics from an ecological point of view. The material was collected at three different sites in Minas Gerais / Brazil and was fixed in FAA. Transverse sections were obtained by freehand sections or from material previously embedded in Paraplast® or Historesin®. The prominent characteristics of the epiphytic group were: significant smaller perimeter, epidermis with 3 or more cell layers, U-thickened exodermal cell walls, O-thickened endodermal cell walls, and a low ratio between the caliber and the number of protoxylem arches. The terrestrial group presented simple or multiseriate epidermis, and exodermis and endodermis with typical Casparian strips. The anatomical characteristics should have evolved with several adaptations to distinct environments during evolutionary process.
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spelling Comparative anatomy of the absorption roots of terrestrial and epiphytic orchidsOrchidsterrestrialepiphyticanatomyadaptationsThe present study compared roots of terrestrial and epiphytic Orchidaceae, analyzing the anatomical characteristics from an ecological point of view. The material was collected at three different sites in Minas Gerais / Brazil and was fixed in FAA. Transverse sections were obtained by freehand sections or from material previously embedded in Paraplast® or Historesin®. The prominent characteristics of the epiphytic group were: significant smaller perimeter, epidermis with 3 or more cell layers, U-thickened exodermal cell walls, O-thickened endodermal cell walls, and a low ratio between the caliber and the number of protoxylem arches. The terrestrial group presented simple or multiseriate epidermis, and exodermis and endodermis with typical Casparian strips. The anatomical characteristics should have evolved with several adaptations to distinct environments during evolutionary process.Instituto de Tecnologia do Paraná - Tecpar2008-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100011Brazilian Archives of Biology and Technology v.51 n.1 2008reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132008000100011info:eu-repo/semantics/openAccessMoreira,Ana Sílvia Franco PinheiroIsaias,Rosy Mary dos Santoseng2008-04-11T00:00:00Zoai:scielo:S1516-89132008000100011Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2008-04-11T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
title Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
spellingShingle Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
Moreira,Ana Sílvia Franco Pinheiro
Orchids
terrestrial
epiphytic
anatomy
adaptations
title_short Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
title_full Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
title_fullStr Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
title_full_unstemmed Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
title_sort Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
author Moreira,Ana Sílvia Franco Pinheiro
author_facet Moreira,Ana Sílvia Franco Pinheiro
Isaias,Rosy Mary dos Santos
author_role author
author2 Isaias,Rosy Mary dos Santos
author2_role author
dc.contributor.author.fl_str_mv Moreira,Ana Sílvia Franco Pinheiro
Isaias,Rosy Mary dos Santos
dc.subject.por.fl_str_mv Orchids
terrestrial
epiphytic
anatomy
adaptations
topic Orchids
terrestrial
epiphytic
anatomy
adaptations
description The present study compared roots of terrestrial and epiphytic Orchidaceae, analyzing the anatomical characteristics from an ecological point of view. The material was collected at three different sites in Minas Gerais / Brazil and was fixed in FAA. Transverse sections were obtained by freehand sections or from material previously embedded in Paraplast® or Historesin®. The prominent characteristics of the epiphytic group were: significant smaller perimeter, epidermis with 3 or more cell layers, U-thickened exodermal cell walls, O-thickened endodermal cell walls, and a low ratio between the caliber and the number of protoxylem arches. The terrestrial group presented simple or multiseriate epidermis, and exodermis and endodermis with typical Casparian strips. The anatomical characteristics should have evolved with several adaptations to distinct environments during evolutionary process.
publishDate 2008
dc.date.none.fl_str_mv 2008-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89132008000100011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.51 n.1 2008
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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