WoRMS source details
Álvarez, G.; Uribe, E.; Regueiro, J.; Blanco, J.; Fraga, S. (2016). Gonyaulax taylorii, a new yessotoxins-producer dinoflagellate species from Chilean waters. Harmful Algae. 58: 8-15.
240812
10.1016/j.hal.2016.07.006 [view]
Álvarez, G.; Uribe, E.; Regueiro, J.; Blanco, J.; Fraga, S.
2016
Gonyaulax taylorii, a new yessotoxins-producer dinoflagellate species from Chilean waters
Harmful Algae
58: 8-15
Publication
Available for editors [request]
In summer 2009, during a survey in Bahía Mejillones, a dense bloom of a dinoflagellate from the genus Gonyaulax was detected, as well as the presence of yessotoxin. Phytoplankton samples were analyzed in detail by light and scanning electron microscopy (SEM), revealing the presence of Gonyaulax taylorii. Morphological examination showed that the cells in the bloom fit in Gonyaulax jollifei Murray et Whitting sensu Dodge, subsequently classified as Gonyaulax taylorii by Carbonell-Moore. In this context, some inconsistencies have been found in regard to the holotype; the plate 1”’ appears as two plates, 1''' and 2''',showing a suture that does not exist in Dodge’s figure of G. jollifei, from where the holotype was drawn, nor within the samples collected. Therefore, this plate has been originally described erroneously as two plates named 1”’ and 2”’ instead of only one named 1'''. After this correction, this species has five instead of six postcingular plates. For this reason, the description of this species must be emended. Phytoplankton net samples were found to containyessotoxin and homoyessotoxin, with concentrations below 1 pg cell-1. The present study identifies, therefore, the dinoflagellate G. taylorii as a new source of yessotoxins.
Gonyaulax taylorii M.C.Carbonell-Moore, 1996 (additional source)
Description
Cells 30–36 mm wide and 45–50 long with conspicuous apical horn of about half the length of the epitheca with ... [details]
Harmful effect
Producer of yessotoxin and homoyessotoxin (Bahía Mejillones, Chile) (Álvarez et al. 2016). [details]
Identification
The dinoflagellate Gonyaulax monacantha var minor sensu Balech (1971) has a shorter 5” as its anterior suture ... [details]