Considerations on the definition of epicortex

The species of the family Parmeliaceae can be divided into two major groups according to the presence of pseudocyphellae or pored epicortex. In the first group of species the upper cortex is composed of exposed hyphae and in the second group is characterized by hyphae covered by a thin epicortex lay...

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Autores principales: Barbosa, Suzana Bissacot, Marcelli, Marcelo Pinto
Formato: Artículo revista
Lenguaje:Portugués
Publicado: Grupo Latinoamericano de Liquenólogos 2010
Materias:
Epicortex
Parmeliaceae
Pseudocifelas
Acceso en línea:https://revistas.unc.edu.ar/index.php/glalia/article/view/43995
Aporte de:
Glalia. Revista electrónica del grupo latinoamericano de Liquenólogos de Universidad Nacional de Córdoba
id I10-R274-article-43995
record_format ojs
spelling I10-R274-article-439952024-02-19T21:13:30Z Considerations on the definition of epicortex Consideraciones sobre la definición de epicortex Considerações sobre a definição de epicórtex Barbosa, Suzana Bissacot Marcelli, Marcelo Pinto Epicortex Parmeliaceae Pseudocifelas Epicortex Parmeliaceae Pseudocifelas The species of the family Parmeliaceae can be divided into two major groups according to the presence of pseudocyphellae or pored epicortex. In the first group of species the upper cortex is composed of exposed hyphae and in the second group is characterized by hyphae covered by a thin epicortex layer composed of polysaccharides. The presence and type of epicortex is considered a constant character in level of genus and section, and useful in the taxonomy of the family. However, through studies by different authors, in light microscopy and scanning electron microscopy added to the chemical analysis, the concepts of epicortex have changed over the time, according to opinions of experts in the area and these concepts are presented and discussed here. Las especies de la familia Parmeliaceae pueden dividirse en dos grandes grupos según la presencia de pseudocifelas o epicórtex poroso. En el primer grupo de especies, el córtex superior está formado por hifas expuestas y en el segundo grupo se caracteriza por hifas cubiertas por un epicórtex delgado formado por polisacáridos. La presencia y el tipo de epicórtex se considera un carácter constante a nivel de género y sección y es útil en la taxonomía de la familia. Sin embargo, a través de estudios realizados por diferentes autores utilizando microscopía óptica y microscopía electrónica de barrido, además de análisis químicos, los conceptos de epicórtex han cambiado con el tiempo de acuerdo con las opiniones de los expertos en la materia y estos conceptos se presentan y discuten aquí. As espécies da família Parmeliaceae podem ser divididas em dois grandes grupos de acordo com a presença de pseudocifelas ou epicórtex poroso. No primeiro grupo de espécies o córtex superior é consistiuído de hifas expostas e no segundo grupo é caracterizado por hifas cobertas por um fino epicórtex constituído por polissacarídeos. A presença e o tipo de epicórtex é considerado um caráter constante ao nível de gênero e de seção é útil na taxonomia da família. No entanto através da realização de estudos, por diferentes autores, em microscopia de luz e microscopia eletrônica de varredura adicionados à análises químicas, os conceitos de epicórtex foram mudando ao longo do tempo, de acordo com as opiniões dos especialistas na área e esses conceitos são aqui apresentados e discutidos Grupo Latinoamericano de Liquenólogos 2010-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unc.edu.ar/index.php/glalia/article/view/43995 Glalia. Revista electrónica del grupo latinoamericano de Liquenólogos; Vol. 3 Núm. 1 (2010): GLALIA; 1-11 1856-9072 por https://revistas.unc.edu.ar/index.php/glalia/article/view/43995/44317 https://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-274
container_title_str Glalia. Revista electrónica del grupo latinoamericano de Liquenólogos
language Portugués
format Artículo revista
topic Epicortex
Parmeliaceae
Pseudocifelas
Epicortex
Parmeliaceae
Pseudocifelas
spellingShingle Epicortex
Parmeliaceae
Pseudocifelas
Epicortex
Parmeliaceae
Pseudocifelas
Barbosa, Suzana Bissacot
Marcelli, Marcelo Pinto
Considerations on the definition of epicortex
topic_facet Epicortex
Parmeliaceae
Pseudocifelas
Epicortex
Parmeliaceae
Pseudocifelas
author Barbosa, Suzana Bissacot
Marcelli, Marcelo Pinto
author_facet Barbosa, Suzana Bissacot
Marcelli, Marcelo Pinto
author_sort Barbosa, Suzana Bissacot
title Considerations on the definition of epicortex
title_short Considerations on the definition of epicortex
title_full Considerations on the definition of epicortex
title_fullStr Considerations on the definition of epicortex
title_full_unstemmed Considerations on the definition of epicortex
title_sort considerations on the definition of epicortex
description The species of the family Parmeliaceae can be divided into two major groups according to the presence of pseudocyphellae or pored epicortex. In the first group of species the upper cortex is composed of exposed hyphae and in the second group is characterized by hyphae covered by a thin epicortex layer composed of polysaccharides. The presence and type of epicortex is considered a constant character in level of genus and section, and useful in the taxonomy of the family. However, through studies by different authors, in light microscopy and scanning electron microscopy added to the chemical analysis, the concepts of epicortex have changed over the time, according to opinions of experts in the area and these concepts are presented and discussed here.
publisher Grupo Latinoamericano de Liquenólogos
publishDate 2010
url https://revistas.unc.edu.ar/index.php/glalia/article/view/43995
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AT marcellimarcelopinto consideracionessobreladefiniciondeepicortex
AT barbosasuzanabissacot consideracoessobreadefinicaodeepicortex
AT marcellimarcelopinto consideracoessobreadefinicaodeepicortex
first_indexed 2024-09-03T22:54:34Z
last_indexed 2025-02-05T22:21:48Z
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