Prorocentrum bimaculatum sp nov (Dinophyceae, prorocentrales), a new benthic dinoflagellate species from Kuwait (Arabian gulf)

Type Article
Date 2012-02
Language English
Author(s) Chomerat Nicolas1, Saburova Maria2, 3, Bilien GwenaelORCID1, Al-Yamani Faiza3
Affiliation(s) 1 : IFREMER, Stn Concarneau, F-29900 Concarneau, France.
2 : IBSS, Inst Biol So Seas, UA-99011 Sevastopol, Ukraine.
3 : KISR, Oceanog & Fisheries Res Program, Aquaculture Fisheries & Marine Environm Dept, Kuwait 22017, Kuwait.
Source Journal Of Phycology (0022-3646) (Wiley-blackwell), 2012-02 , Vol. 48 , N. 1 , P. 211-221
DOI 10.1111/j.1529-8817.2011.01102.x
WOS© Times Cited 8
Keyword(s) Arabian Gulf, benthic dinoflagellates, Kuwait, molecular phylogeny, morphology, nuclear DNA, Prorocentrum, rDNA, SEM, taxonomy
Abstract A new benthic dinoflagellate species, Prorocentrum bimaculatum sp. nov., is studied from Kuwaits marine sediments, based on detailed morphological and molecular data. Cells are large, oblong oval in shape. They are 49.955.3 mu m long and 38.443.2 mu m wide. The ornamentation of this new species is peculiar, and characterized by smooth valves with large pores (0.320.50 mu m) scattered on their surface, except in two circular patches of similar to 15 mu m in diameter, devoid of ornamentation and located on both sides of the valve centers. The periflagellar area is widely triangular, located in a moderate excavation of the right valve, and comprises nine platelets. The intercalary band of P. bimaculatum is smooth. The molecular phylogenetic position of this new taxon was inferred from SSU and LSU rDNA genes. In both phylogenetic analyses, P. bimaculatum branched with high support with Prorocentrum consutum and formed a clade sister to the one including P. lima and related species such as P. arenarium, P. belizeanum, P. hoffmannianum, and P. maculosum. From the phylogenetic study, since most species related to P. bimaculatum are known for their toxic effects and production of okadaic acid, this new species can be considered as a potential toxin producer, but this has to be analyzed.
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