WoRMS source details
Fraga, S.; Rodríguez, F.; Riobó, P.; Bravo, I. (2016). Gambierdiscus balechii sp. nov (Dinophyceae), a new benthic toxic dinoflagellate from the Celebes Sea (SW Pacific Ocean). Harmful Algae.
240827
10.1016/j.hal.2016.06.004 [view]
Fraga, S.; Rodríguez, F.; Riobó, P.; Bravo, I.
2016
Gambierdiscus balechii sp. nov (Dinophyceae), a new benthic toxic dinoflagellate from the Celebes Sea (SW Pacific Ocean)
Harmful Algae
Publication
A new benthic toxic dinoflagellate is described from the Celebes Sea. Gambierdiscus balechii sp. nov. was isolated from seaweeds growing in tidal ponds. Its morphology was studied by means of LM and SEM; G. balechii has a very ornamented theca, a hatchet shaped second apical plate, a narrow second antapical plate and an asymmetrical third precigular plate, a unique combination of characters among Gambierdiscus species. It has a very wide size range with widths from 36 to 88 µm. Phylogenetic analyses of two G. balechii strains, based on LSU rRNA (D8-D10) and partial SSUrRNA sequences confirmed that these clustererd in its' own group, separated from the rest of Gambierdiscus species and with G. pacificus, G. belizeanus and G. scabrosus as its closest relatives. Thecate cysts are described from culture as non motile vegetative-like cells which germinated after being isolated and transferred to fresh medium. Mouse tests showed that this species is toxic and hence it is a potential cause of ciguatera in the Celebes Sea.
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Gambierdiscus balechii S.Fraga, F.Rodríguez & I.Bravo, 2016 (original description)
Description
Typical cells of G. balechii are anterioposteriorly compressed with a length/width ratio of 0.65, an average depth ... [details]
Etymology
Named for "the late Prof. Enrique Balech for his outstanding contributions to the taxonomy of armored dinoflagellates [details]
Harmful effect
MTX bio-assay demonstrate MBA positive and NCBA positives (Fraga et al. 2016; Pisapia et al. 2017). No compounds have ... [details]
Identification
Litaker et al. (2009) divided the Gambierdiscus species in two groups according to the width of Plate 2'''' . One ... [details]