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Observations on the diatom Navicula hedinii Hustedt (Bacillariophyceae) and its transfer to a new genus Envekadea Van de Vijver et al. gen. nov. (CROSBI ID 134341)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Gligora, Marija ; Kralj, Koraljka ; Plenković-Moraj, Anđelka ; Hinz, Friedel ; Acs, Eva ; Grigorszky, Istvan ; Cocquyt Christine ; Van de Vijver, Bart Observations on the diatom Navicula hedinii Hustedt (Bacillariophyceae) and its transfer to a new genus Envekadea Van de Vijver et al. gen. nov. // European journal of phycology, 44 (2009), 1; 123-138

Podaci o odgovornosti

Gligora, Marija ; Kralj, Koraljka ; Plenković-Moraj, Anđelka ; Hinz, Friedel ; Acs, Eva ; Grigorszky, Istvan ; Cocquyt Christine ; Van de Vijver, Bart

engleski

Observations on the diatom Navicula hedinii Hustedt (Bacillariophyceae) and its transfer to a new genus Envekadea Van de Vijver et al. gen. nov.

The population of an unknown naviculoid diatom from Lake Vrana in Croatia was identified as Navicula hedinii Hustedt, a species that was described in 1922 from a small lake in eastern Turkestan. This species has some similarities with Navicula pseudocrassirostris Hustedt, a marine species found in European coastal waters. Based on the ultrastructure of the two species, they can no longer be included within the taxonomical concept of Navicula s.s. Bory. Following a morphological comparison analysis of both species with genera bearing similar characters (Adlafia, Veigaludwigia, Kobayasiella, Cavinula, Stenoneis, Sellaphora, Cosmioneis), a new genus, Envekadea Van de Vijver, Gligora, Kralj & Cocquyt gen. nov. is proposed for the three species. The new genus is characterized by a sigmoid raphe course with golfclub-like terminal fissures deflected into opposite directions, by a typical areolae structure, the presence of an external velum covering the areolae and the presence of 1 chloroplast, H-shaped in valve view.

Naviculaceae; Envekadea gen. nov.; Envekadea pseudocrassirostris; Envekadea hedinii; ultrastructure; taxonomy.

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Podaci o izdanju

44 (1)

2009.

123-138

objavljeno

0967-0262

Povezanost rada

Biologija

Indeksiranost