287
Views
5
CrossRef citations to date
0
Altmetric
Research Article

Morphology, genetics and toxin profile of Prorocentrum texanum (Dinophyceae) from Argentinian marine coastal waters

ORCID Icon, ORCID Icon, ORCID Icon, ORCID Icon, , ORCID Icon, ORCID Icon & ORCID Icon show all
Pages 634-650 | Received 12 Aug 2020, Accepted 28 Sep 2020, Published online: 23 Nov 2020
 

ABSTRACT

Two strains of Prorocentrum texanum (LPCc020 and LPCc032) were established from coastal waters of the Province of Buenos Aires, Argentina. Field and cultured materials were examined using light and scanning electron microscopy, and the planktonic species Prorocentrum texanum, a known okadaic acid producer, was identified. We compared morphology, genetics and toxin profile of P. texanum based on material from Argentina in relation to strains from the Gulf of México. Our specimens and those described in the protologue of P. texanum var. texanum had similar shape, thecal ornamentation distribution patterns of large and small pores, and morphology of wings supported by platelets 1 and 4, respectively. Morphometric differences occurred in the ranges of length, depth and diameter of thecal plate pores. Morphology of the periflagellar area was described from Argentinean strains. SSU, ITS and LSU rDNA-based phylogenies of strains LPCc020 and LPCc032 placed them with other sequences of P. texanum. ITS rDNA showed that the most closely species, in order, are P. micans, P. steidingerae, P. mexicanum/P. rhathymum, and P. koreanum. The ability of the Argentinian strains to produce marine biotoxins was assessed, but, no toxins were detected. This is the first report of P. texanum outside the Gulf of México.

ACKNOWLEDGEMENTS

We thank Dr. Juan Blanco, from the Centro de Investigacións Mariñas (CIMA) of the Xunta de Galicia, Vilanova de Arousa, Pontevedra, Spain, for his generous help in the investigation of toxins of the LPCc032 strain. We are grateful to two anonymous reviewers for their meticulous corrections that improved our manuscript.

Additional information

Funding

This study was partially supported by grants from the Universidad Nacional de La Plata (11/N863), with the contribution of the Dirección Provincial de Pesca, Ministerio de Desarrollo Agrario, Prov. Buenos Aires, and by the projects CCVIEO and DIANAS (CTM2017-86066-R) from the Instituto Español de Oceanografía, with the contribution of the Unidad Asociada de Microalgas nocivas (CSIC-IEO).

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 283.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.