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    Título
    Morphological examination and biogeography of the Gomphonema rosenstockianum and G. tergestinum species complex (Bacillariophyceae)
    Autor
    Novais, María Helena
    Blanco Lanza, SaulAutoridad BuleriaORCID
    Hlubikova, Daša
    Falasco, Elisa
    Gomá Martínez, Joan
    Delgado, Cristina
    Ivanov, Plamen
    Ács, Éva
    Morais, Manuela
    Hoffmann, Lucien
    Ector, Luc
    Facultad/Centro
    Instituto de Medio Ambiente, Recursos Naturales y Biodiversidad de la Universidad de Léon
    Área de conocimiento
    Ecologia
    Datos de la obra
    Fottea, 2009, 9(2)
    Editor
    Czech Phycological Society
    Fecha
    2009
    Abstract
    The type material of Gomphonema rosenstockianum LANGE–BERT. et E. REICHARDT from La Gomera (Canary Islands, Spain) and epilithic material of rivers from several European countries were examined using light and scanning electron microscopy in order to improve the knowledge on the taxonomical status of the G. rosenstockianum and G. tergestinum (GRUNOW) M. SCHMIDT species complex. Two other Gomphonema species, G. supertergestinum E. REICHARDT and G. angustius E. REICHARDT, recently described and belonging to the same group, are also presented in detail. After the analysis of several populations of G. rosenstockianum and G. tergestinum it was possible to define several reliable criteria to allow morphological differentiation of both species under LM and SEM as well. A geometric morphometric analysis clearly demonstrated the separation of these taxa considering valve outline, size and shape of the central area and position of the stigma. Apart from the morphological analysis, compilation of the results of this study has also revealed differences in ecological preferences of the two species. World and European distribution maps of the four Gomphonema taxa are presented.
    Materia
    Biología
    Ecología. Medio ambiente
    Palabras clave
    Diatomeas
    Diatoms
    Gomphonema (Bacillariophyceae)
    Gomera
    Canarias
    Plantas
    Clasificación
    Peer review
    SI
    URI
    http://hdl.handle.net/10612/7095
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    Novais, M. H., Blanco, S., Hlubiková, D., Falasco, E., Gomá, J., Delgado, C., ... & Ector, L.. Morphological examination and biogeography of the Gomphonema rosenstockianum an.pdf
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