Author:
Verma A.,Hoppenrath M.,Smith K. F.,Murray J. S.,Harwood D. T.,Hosking J. M.,Rongo T.,Rhodes L. L.,Murray S. A.
Abstract
AbstractIt is important to decipher the diversity and distribution of benthic dinoflagellates, as there are many morphologically indistinct taxa that differ from one another in production of potent toxins. To date, the genusOstreopsiscomprises twelve described species, of which seven are potentially toxic and produce compounds presenting a threat to human and environmental health. In this study, isolates previously identified as “Ostreopsissp. 3” were sampled from the area where it was first reported, Rarotonga, Cook Islands, and have been taxonomically and phylogenetically characterised asOstreopsis tairotosp. nov. Phylogenetically, the species is closely related to “Ostreopsissp. 8”,O. mascarenensis, “O. sp. 4”,O. fattorussoi, O. rhodesiaeandO. cf.siamensis. Previously, it was considered a part of theO. cf.ovatacomplex but can be distinguished fromO. cf.ovatabased on the small pores identified on this study, and fromO. fattorussoiandO. rhodesiaebased on relative lengths of the 2′ plates. No known palytoxin -like compounds were detected in strains investigated in this study. Strains ofO. lenticularis, Coolia malayensisandC. tropicaliswere also identified and described. This study advances our knowledge of biogeography, distribution, and toxins ofOstreopsisandCooliaspecies.
Funder
Australian Research Council
Fisheries Research and Development Corporation
Senckenberg Biodiversität und Klima Forschungszentrum
New Zealand Ministry of Business, Innovation and Employment
Department of Foreign Affairs and Trade, Australian Government
Hanse Wissenschaftskolleg, Germany
Publisher
Springer Science and Business Media LLC
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