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Provedor de dados:  Biota Neotropica
País:  Brazil
Título:  Gomphonema Ehrenberg (Bacillariophyceae, Gomphonemataceae) of the São Francisco Falso River, Paraná, Brazil
Autores:  Medeiros,Gabriela
Amaral,Mailor Wellinton Wedig
Ferreira,Paula Carolina
Ludwig,Thelma Veiga
Bueno,Norma Catarina
Data:  2018-01-01
Ano:  2018
Palavras-chave:  Lotic environment
Diatoms
Taxonomy
Ultrastructure
Resumo:  Abstract: Gomphonema Ehrenberg is a genus well represented in periphytic algal flora of epicontinental environments. The substrate colonization is facilitated by the secretion of mucilage by the pore field, allowing cell adhesion. Samples were scraped off and analyzed from vegetative portions of the macrophyte Eichhornia azurea Kunth, collected in São Francisco Falso River, located in Santa Helena City, Paraná State. The sampling occurred in four different sites, in four different periods, totaling 16 samples. The quantitative material analysis resulted in 28 identified taxa, in which Gomphonema brasiliense ssp. pacificum, Gomphonema neoapiculatum Lange-Bertalot, Reichardt & Metzeltin Gomphonema pantropicum Reichardt and Gomphonema perapicatum Metzeltin & Lange-Bertalot represented pioneer citations for Paraná diatomflorula. The ultrastructure observations of some species were crucial to distinguish a few taxa, as Gomphonema brasiliense and Gomphonema brasiliensoide D. Metzeltin, Lange-Bertalot & F. García-Rodríguez. We suggest future studies in this environment, once it has propitious characteristics to the development of epilithic diatoms. Moreover, phylogenetic studies are also recommended for a better distinction of taxa with a wide morphologic variation.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000300205
Editor:  Instituto Virtual da Biodiversidade | BIOTA - FAPESP
Relação:  10.1590/1676-0611-bn-2017-0495
Formato:  text/html
Fonte:  Biota Neotropica v.18 n.3 2018
Direitos:  info:eu-repo/semantics/openAccess
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