Consulta: subjectFacets:"Saccifolieae"
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Data/hora: 09/06/2024 19:14:59

Are stem nectaries common in Gentianaceae Juss.?
Provedor de dados: 39
Autores: Dalvi,Valdnéa Casagrande; Meira,Renata Maria Strozi Alves; Azevedo,Aristéa Alves.
ABSTRACT Extrafloral nectaries (EFNs) are specialized structures that produce and release nectar and are located on leaves, cotyledons and, more seldomly, stems. Peculiar leaf nectaries have been described for thirty-three Neotropical species of Gentianaceae, while stem nectaries have been reported for only nine. The aim of this study was to verify the occurrence of stem EFNs within Gentianaceae and investigate the existence of a correlation between their occurrence and the geographical distribution of species. Samples of internodal regions from field and herbarium specimens were submitted to standard light microscopy techniques. Data regarding the geographical distribution of species were acquired from herbarium specimens and the literature. A total of 37...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coutoubeinae; Helieae; Potalieae; Saccifolieae; Secretory structures.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300403