Anatomia foliar de cinco espécies de Polygala de restinga e cerrado
The ecological plasticity observed in plants that inhabit different vegetation formations is often accompanied by morphological variations, the leaf being the vegetative organ with the greatest structural variation. In view of this concept, the leaf anatomy of five species of Polygala L. occurring i...
| Autor principal: | DIAS, Ana Cristina Andrade de Aguiar |
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| Outros Autores: | YAMAMOTO, Kikyo, CASTRO, Marília de Moraes |
| Grau: | Artigo |
| Idioma: | por |
| Publicado em: |
2015
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| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/6292 |
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ir-2011-6292 |
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ir-2011-62922018-02-16T16:28:46Z Anatomia foliar de cinco espécies de Polygala de restinga e cerrado Leaf anatomy of five Polygala species (Polygalaceae) from restinga and cerrado DIAS, Ana Cristina Andrade de Aguiar YAMAMOTO, Kikyo CASTRO, Marília de Moraes Anatomia foliar Polygalaceae Restingas Cerrados São Paulo - Estado The ecological plasticity observed in plants that inhabit different vegetation formations is often accompanied by morphological variations, the leaf being the vegetative organ with the greatest structural variation. In view of this concept, the leaf anatomy of five species of Polygala L. occurring in restinga (sandy coastal plain) and cerrado (savanna) areas in the state of São Paulo were analyzed in order to inventory their principal characters and describe their leaf structure, to thus compare them and assess the possibility of verifying structural patterns common to the ecological conditions of both vegetation formations. The species studied were: P. cyparissias A.St.-Hil. & Moq., P. laureola A.St.-Hil. & Moq., P. paniculata L. found in restinga, and P. angulata DC. and P. violacea Aubl. emend. Marques occurring in campo cerrado and cerradão margin areas, respectively. The middle region of the leaf blade and petiole proximal region of each leaf were processed following the usual techniques for scanning electron and light microscopy. The results show two structural patterns common to the species from the restinga and cerrado area formations: mesomorphic characteristics are observed in P. laureola, P. paniculata, and P. violacea, and xeromorphic in P. cyparissias and P. angulata. A plasticidade ecológica observada em plantas que ocupam diferentes formações vegetais é frequentemente acompanhada por variações morfológicas, sendo a folha o órgão vegetativo com a maior variação estrutural. Diante disso, cinco espécies de Polygala L. ocorrentes em restinga e cerrado do Estado de São Paulo tiveram a anatomia da folha analisada com o objetivo de efetuar um inventário dos seus principais caracteres e descrever sua estrutura, com o propósito de compará-las, e de avaliar se é possível evidenciar padrões estruturais comuns às condições ecológicas de ambas as formações vegetacionais. As espécies pesquisadas foram: P. cyparissias A.St. –Hil. & Moq., P. laureola A.St.-Hil. & Moq., P. paniculata L., encontradas em restinga; P. angulata DC. e P. violacea Aubl. emend. Marques, que ocorrem em campo cerrado e em margem de cerradão, respectivamente. A região mediana da lâmina foliar e a região proximal do pecíolo de cada folha foram processadas segundo as técnicas usuais para microscopia eletrônica de varredura e de luz. Os resultados obtidos evidenciam dois padrões estruturais comuns às espécies procedentes das formações de restinga e cerrado: características mesomórficas são observadas em P. laureola, P. paniculata e P. violacea, e xeromórficas em P. cyparissias e P. angulata. 2015-02-09T12:25:07Z 2015-02-09T12:25:07Z 2012-06 Artigo de Periódico AGUIAR-DIAS, Ana Cristina Andrade de; YAMAMOTO, Kikyo; CASTRO, Marília de Moraes. Anatomia foliar de cinco espécies de Polygala de restinga e cerrado. Rodriguésia, Rio de Janeiro, v. 63, n. 2, abr./jun. 2012. Disponível em: <http://www.scielo.br/pdf/rod/v63n2/a12v63n2.pdf>. Acesso em: 06 fev. 2015. <http://dx.doi.org/10.1590/S2175-78602012000200012>. 2175-7860 http://repositorio.ufpa.br/jspui/handle/2011/6292 por Acesso Aberto application/pdf |
| institution |
Repositório Institucional - Universidade Federal do Pará |
| collection |
RI-UFPA |
| language |
por |
| topic |
Anatomia foliar Polygalaceae Restingas Cerrados São Paulo - Estado |
| spellingShingle |
Anatomia foliar Polygalaceae Restingas Cerrados São Paulo - Estado DIAS, Ana Cristina Andrade de Aguiar Anatomia foliar de cinco espécies de Polygala de restinga e cerrado |
| topic_facet |
Anatomia foliar Polygalaceae Restingas Cerrados São Paulo - Estado |
| description |
The ecological plasticity observed in plants that inhabit different vegetation formations is often accompanied by morphological variations, the leaf being the vegetative organ with the greatest structural variation. In view of this concept, the leaf anatomy of five species of Polygala L. occurring in restinga (sandy coastal plain) and cerrado (savanna) areas in the state of São Paulo were analyzed in order to inventory their principal characters and describe their leaf structure, to thus compare them and assess the possibility of verifying structural patterns common to the ecological conditions of both vegetation formations. The species studied were: P. cyparissias A.St.-Hil. & Moq., P. laureola A.St.-Hil. & Moq., P. paniculata L. found in restinga, and P. angulata DC. and P. violacea Aubl. emend. Marques occurring in campo cerrado and cerradão margin areas, respectively. The middle region of the leaf blade and petiole proximal region of each leaf were processed following the usual techniques for scanning electron and light microscopy. The results show two structural patterns common to the species from the restinga and cerrado area formations: mesomorphic characteristics are observed in P. laureola, P. paniculata, and P. violacea, and xeromorphic in P. cyparissias and P. angulata. |
| format |
Artigo |
| author |
DIAS, Ana Cristina Andrade de Aguiar |
| author2 |
YAMAMOTO, Kikyo CASTRO, Marília de Moraes |
| author2Str |
YAMAMOTO, Kikyo CASTRO, Marília de Moraes |
| title |
Anatomia foliar de cinco espécies de Polygala de restinga e cerrado |
| title_short |
Anatomia foliar de cinco espécies de Polygala de restinga e cerrado |
| title_full |
Anatomia foliar de cinco espécies de Polygala de restinga e cerrado |
| title_fullStr |
Anatomia foliar de cinco espécies de Polygala de restinga e cerrado |
| title_full_unstemmed |
Anatomia foliar de cinco espécies de Polygala de restinga e cerrado |
| title_sort |
anatomia foliar de cinco espécies de polygala de restinga e cerrado |
| publishDate |
2015 |
| url |
http://repositorio.ufpa.br/jspui/handle/2011/6292 |
| _version_ |
1832602874524205056 |
| score |
11.755432 |