| Registro completo |
| Provedor de dados: |
Acta Botanica
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| País: |
Brazil
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| Título: |
Cuticular n-alkane in leaves of seven Neotropical species of the family Lecythidaceae: a contribution to chemotaxonomy
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| Autores: |
Silva,Rejane Maria da
Ribeiro,Rayane de Tasso Moreira
Souza,Renata Janaína Carvalho de
Oliveira,Antônio Fernando Morais de
Silva,Suzene Izídio da
Gallão,Maria Izabel
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| Data: |
2017-03-01
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| Ano: |
2017
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| Palavras-chave: |
Lecythidaceae
Neotropics
Taxonomy
Tropical rain forest
Wax
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| Resumo: |
ABSTRACT Biosynthesized from very long-chain fatty acid wax precursors, n-alkanes make a valuable contribution to the taxonomy of plants. The alkane components of foliar epicuticles of seven Neotropical species of Lecythidaceae were investigated: Bertholletia excelsa, Cariniana legalis, Couroupita guianensis, Eschweilera alvimii, Eschweilera ovata, Gustavia augusta and Lecythis pisonis. Specimens were collected in the metropolitan area of Recife, Pernambuco, and their n-alkane fractions were analyzed by gas chromatography. The chemical relationships among the species were then evaluated using cophenetic correlation and UPGMA. Among the seven species, a total of 15 n-alkanes, with 21-35 carbon atoms, were identified and formed a consistent group of B. excelsa, C. guianensis, E. ovata, G. augusta, and L. pisonis with n-C31. The greatest similarities were found between B. excelsa and L. pisonis, and between C. guianensis and G. augusta. Nevertheless, a phenetic analysis based on a larger number of species is needed to better understand the chemotaxonomic value of epicuticular n-alkanes within the Lecythidaceae.
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| Tipo: |
Info:eu-repo/semantics/other
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100137
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| Editor: |
Sociedade Botânica do Brasil
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| Relação: |
10.1590/0102-33062016abb0387
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| Formato: |
text/html
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| Fonte: |
Acta Botanica Brasilica v.31 n.1 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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