SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1

Detalhes bibliográficos
Autor(a) principal: Milanez, Camilla Rozindo Dias
Data de Publicação: 2011
Outros Autores: Machado, Silvia Rodrigues [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/2175-7860201162113
http://hdl.handle.net/11449/213367
Resumo: The wide diversity of their trichomes, which vary from simple unicellular to very complex structures, is a remarkable characteristic in Melastomataceae. This paper characterizes the leaf indumentum of Miconia albicans (Sw.) Triana, M. chamissois Naudin, M. fallax DC., M. ligustroides (DC.) Naudin, Microlepis oleaefolia (DC.) Triana and Rhynchanthera dichotoma DC., typical species from Brazilian cerrado. Samples collected from the median third of young and mature leaf blades were processed following the usual scanning electron microscopy techniques (SEM). We observed ten morphological types of trichomes and four of emergences. With five different types, four of which are reported for the first time, Rhynchanthera dichotoma is the species that presents the most diverse indumenta. A mixed type of trichome formed by a glandular and a branched non-glandular portion called lateral-gland was observed in M. ligustroides. Such non-glandular portion presents different degrees of development. A correlation is suggested between the stage of development of the non-glandular portion and the exposition to light of these lateral gland on young leaves.
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spelling SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1Microscopia eletrônica de varredura do indumento foliar de seis espécies de Melastomataceae do cerradoemergenceleaftrichomemorphologyemergênciafolhatricomamorfologiaThe wide diversity of their trichomes, which vary from simple unicellular to very complex structures, is a remarkable characteristic in Melastomataceae. This paper characterizes the leaf indumentum of Miconia albicans (Sw.) Triana, M. chamissois Naudin, M. fallax DC., M. ligustroides (DC.) Naudin, Microlepis oleaefolia (DC.) Triana and Rhynchanthera dichotoma DC., typical species from Brazilian cerrado. Samples collected from the median third of young and mature leaf blades were processed following the usual scanning electron microscopy techniques (SEM). We observed ten morphological types of trichomes and four of emergences. With five different types, four of which are reported for the first time, Rhynchanthera dichotoma is the species that presents the most diverse indumenta. A mixed type of trichome formed by a glandular and a branched non-glandular portion called lateral-gland was observed in M. ligustroides. Such non-glandular portion presents different degrees of development. A correlation is suggested between the stage of development of the non-glandular portion and the exposition to light of these lateral gland on young leaves.A grande diversidade de tricomas, variando desde estruturas unicelulares a tricomas muito complexos é uma característica marcante em Melastomataceae. Este trabalho caracteriza o indumento foliar de Miconia albicans (Sw.) Triana, M. chamissois Naudin, M. fallax DC., M. ligustroides (DC.) Naudin, Microlepis oleaefolia (DC.) Triana e Rhynchanthera dichotoma DC., espécies típicas do cerrado brasileiro. Amostras retiradas do terço mediano do limbo de folhas jovens e adultas foram processadas segundo técnicas usuais para microscopia eletrônica de varredura (MEV). Verificaram-se dez tipos morfológicos de tricomas e quatro de emergências. Rhynchanthera dichotoma foi a espécie que apresentou maior diversidade de indumento, cinco, sendo que destes, quatro foram registrados pela primeira vez. Um tipo misto de tricoma constituído por uma porção glandular e outra não-glandular ramificada, denominado de lateral-gland, foi observado em M. ligustroides. A porção não-glandular apresentou diferentes graus de desenvolvimento. Sugere-se uma correlação entre o grau de desenvolvimento da porção não-glandular e a exposição à luz destes tricomas em folhas jovens.Universidade Federal do Espírito Santo, Depto. Ciências BiológicasUniversidade Estadual Paulista, Instituto de BiociênciasUniversidade Estadual Paulista, Instituto de BiociênciasInstituto de Pesquisas Jardim Botânico do Rio de JaneiroUniversidade Federal do Espírito SantoUniversidade Estadual Paulista (Unesp)Milanez, Camilla Rozindo DiasMachado, Silvia Rodrigues [UNESP]2021-07-14T10:54:14Z2021-07-14T10:54:14Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article203-212application/pdfhttp://dx.doi.org/10.1590/2175-7860201162113Rodriguésia. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, v. 62, n. 1, p. 203-212, 2011.0370-65832175-7860http://hdl.handle.net/11449/21336710.1590/2175-7860201162113S2175-78602011000100203S2175-78602011000100203.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRodriguésiainfo:eu-repo/semantics/openAccess2023-10-26T06:07:31Zoai:repositorio.unesp.br:11449/213367Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:01:10.604166Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
Microscopia eletrônica de varredura do indumento foliar de seis espécies de Melastomataceae do cerrado
title SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
spellingShingle SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
Milanez, Camilla Rozindo Dias
emergence
leaf
trichome
morphology
emergência
folha
tricoma
morfologia
title_short SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
title_full SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
title_fullStr SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
title_full_unstemmed SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
title_sort SEM studies on the leaf indumentum of six Melastomataceae species from Brazilian Cerrado1
author Milanez, Camilla Rozindo Dias
author_facet Milanez, Camilla Rozindo Dias
Machado, Silvia Rodrigues [UNESP]
author_role author
author2 Machado, Silvia Rodrigues [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Federal do Espírito Santo
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Milanez, Camilla Rozindo Dias
Machado, Silvia Rodrigues [UNESP]
dc.subject.por.fl_str_mv emergence
leaf
trichome
morphology
emergência
folha
tricoma
morfologia
topic emergence
leaf
trichome
morphology
emergência
folha
tricoma
morfologia
description The wide diversity of their trichomes, which vary from simple unicellular to very complex structures, is a remarkable characteristic in Melastomataceae. This paper characterizes the leaf indumentum of Miconia albicans (Sw.) Triana, M. chamissois Naudin, M. fallax DC., M. ligustroides (DC.) Naudin, Microlepis oleaefolia (DC.) Triana and Rhynchanthera dichotoma DC., typical species from Brazilian cerrado. Samples collected from the median third of young and mature leaf blades were processed following the usual scanning electron microscopy techniques (SEM). We observed ten morphological types of trichomes and four of emergences. With five different types, four of which are reported for the first time, Rhynchanthera dichotoma is the species that presents the most diverse indumenta. A mixed type of trichome formed by a glandular and a branched non-glandular portion called lateral-gland was observed in M. ligustroides. Such non-glandular portion presents different degrees of development. A correlation is suggested between the stage of development of the non-glandular portion and the exposition to light of these lateral gland on young leaves.
publishDate 2011
dc.date.none.fl_str_mv 2011
2021-07-14T10:54:14Z
2021-07-14T10:54:14Z
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/10.1590/2175-7860201162113
Rodriguésia. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, v. 62, n. 1, p. 203-212, 2011.
0370-6583
2175-7860
http://hdl.handle.net/11449/213367
10.1590/2175-7860201162113
S2175-78602011000100203
S2175-78602011000100203.pdf
url http://dx.doi.org/10.1590/2175-7860201162113
http://hdl.handle.net/11449/213367
identifier_str_mv Rodriguésia. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, v. 62, n. 1, p. 203-212, 2011.
0370-6583
2175-7860
10.1590/2175-7860201162113
S2175-78602011000100203
S2175-78602011000100203.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rodriguésia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 203-212
application/pdf
dc.publisher.none.fl_str_mv Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
dc.source.none.fl_str_mv SciELO
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_ 1808128594953633792

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