Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) : a pantropical marine member of Cocconeidaceae

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Cocconeis dapalistriata, first described as a member of the genus Cocconeis, is re-examined due to its unique ultrastructure. Both valvocopulae of this taxon show significant differences compared to those found in the genus Cocconeis. They are expanded and show some similarities with those found in Amphicocconeis. On the other hand, terminal parts of the raphe valve (RV) in C. dapalistriata are simple and the raphe valve (RV) striae are composed of small round areolae with a hymenate occlusion with radial slits, similar to those observed in Cocconeis. Campyloneis and Xenococconeis also have expanded valvocopulae but with numerous morphological differences compared to those found in C. dapalistriata. Furthermore, the areolae of the sternum valve (SV) in C. dapalistriata are occluded by a concave velum with no apparent internal slits, and externally ornamented with irregular silica crystals. Upsilococconeis Riaux-Gobin, Witkowski & Risjani gen. nov. is proposed to accommodate the latter taxon. First described from the Western Indian Ocean (Mascarenes), it was subsequently listed from the Western Pacific Ocean (Guam), the South Pacific Ocean (French Polynesia and New Caledonia) and from the Eastern Indian Ocean (Indonesia), and thus may qualify as pantropical.

Tytuł
Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) : a pantropical marine member of Cocconeidaceae
Twórca
Riaux-Gobin Catherine
Słowa kluczowe
diatoms; benthic; pantropical; Upsilococconeis gen. nov.; Upsilococconeis dapalistriata comb. nov.
Słowa kluczowe
okrzemki; denny; pantropikalny
Współtwórca
Witkowski Andrzej ORCID 0000-0003-1714-218X
Risjani Yenny
Yunianta Yunianta
Berteaux-Lecellier Véronique
Kryk Adrian
Peszek Łukasz
Daniszewska-Kowalczyk Genowefa ORCID 0000-0003-1795-4532
Data
2022
Typ zasobu
artykuł
Identyfikator zasobu
DOI 10.26881/oahs-2022.1.03
Źródło
Oceanological and Hydrobiological Studies : international journal of oceanography and hydrobiology, 2022, vol. 51 no. 1, pp. 23-31
Język
angielski
Prawa autorskie
CC BY-NC-ND CC BY-NC-ND
Dyscyplina naukowa
Nauki o Ziemi i środowisku; Dziedzina nauk ścisłych i przyrodniczych
Kategorie
Publikacje pracowników US
Data udostępnienia23 lut 2023, 13:02:54
Data mod.23 lut 2023, 13:02:54
DostępPubliczny
Aktywnych wyświetleń0