Artículo
New species, new taxon report and biogeography of the diatom genus Gomphoneis Cleve (Bacillariophyceae) in Patagonia, Chubut Province, Argentina
Kociolek, Patrick; Uyua, Noelia Mariel
; Sala, Silvia Estela; Santinelli, Norma Herminia; Cefarelli, Adrián Oscar
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
12/2017
Editorial:
Biopress Limited
Revista:
Diatom Research
ISSN:
0269-249X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The presence of three Gomphoneis species from Chubut Province in Argentina is documented with light and scanning electron microscopy. Two of the taxa, G. patagoniana and G. eriense var. variabilis, are part of the Herculeana subgroup of Gomphoneis. Gomphoneis patagoniana is a newly discovered species and G. eriense var. variabilis is reported from Argentina for the first time. These two species have evident axial plates, differentiated apical pore fields (APFs), a stigmal opening that is round externally and slit-like internally, and areolae that are mostly tri-radiate in shape. The third species, G. frenguellii, is also newly discovered and described. Presence of four isolated stigmoids, undifferentiated APFs and lack of an axial plate indicates G. frenguellii is a member of the Elegans subgroup of the genus. Presence of these newly described species, and the previously unreported taxon, may also be associated with the invasive species Didymosphenia geminata. Given there is no long history of reports of Gomphoneis in the country and, in the case of G. eriense var. variabilis, its previously known distribution, it is possible that the origin of this Gomphoneis taxon is from western North America.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Kociolek, Patrick; Uyua, Noelia Mariel; Sala, Silvia Estela; Santinelli, Norma Herminia; Cefarelli, Adrián Oscar; New species, new taxon report and biogeography of the diatom genus Gomphoneis Cleve (Bacillariophyceae) in Patagonia, Chubut Province, Argentina; Biopress Limited; Diatom Research; 32; 4; 12-2017; 439-450
Compartir
Altmétricas