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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

A-, B- and C-type prymnesins are Glade specific compounds and chemotaxonomic markers in Prymnesium parvum

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Autor(es):
Binzer, Sofie Bjornholt [1] ; Svenssen, Daniel Killerup [2] ; Daugbjerg, Niels [3] ; Alves-de-Souza, Catharine [4, 5] ; Pinto, Ernani [6] ; Hansen, Per Juel [1] ; Larsen, Thomas Ostenfeld [2] ; Varga, Elisabeth [2]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] Univ Copenhagen, Dept Biol, Marine Biol Sect, Strandpromenaden 5, DK-3000 Helsingor - Denmark
[2] Tech Univ Denmark, Dept Biotechnol & Biomed, Soltofts Plads 221, DK-2800 Lyngby - Denmark
[3] Univ Copenhagen, Dept Biol, Marine Biol Sect, Univ Pk 4, DK-2200 Copenhagen K - Denmark
[4] Univ N Carolina, MARBIONC CREST Res Pk, Algal Resources Collect, 5600 Marvin K Moss Ln, Wilmington, NC 28409 - USA
[5] Univ Fed Rio de Janeiro, Museu Nacl, Dept Bot, Lab Ficol, Quinta Boa Vista S-N, BR-20940040 Rio De Janeiro, RJ - Brazil
[6] Univ Sao Paulo, Sch Pharmaceut Sci, Av Prof Lineu Prestes 580, BR-05508000 Sao Paulo, SP - Brazil
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: HARMFUL ALGAE; v. 81, p. 10-17, JAN 2019.
Citações Web of Science: 1
Resumo

Harmful blooms formed by planktonic microalgae (HABs) in both freshwater and coastal waters regularly lead to severe mortalities of fish and invertebrates causing substantial economic losses of marine products worldwide. The mixotrophic haptophyte Prymnesium parvum is one of the most important microalgae associated with fish kills. Here 26 strains of P. parvum with a wide geographical distribution were screened for the production of prymnesins, the suspected causative allelochemical toxins. All investigated strains produced prymnesins, indicating that the toxins play an important role for the organism. The prymnesins can be classified into three types based on the length of the carbon backbone of the compound and each algal strain produced only one of these types, Biogeographical mapping of the prymnesin distribution indicated a global distribution of each type. In addition, phylogenetic analyses based on internal transcribed spacer (ITS) sequences revealed monophyletic origin of all prymnesin types and clades could therefore be defined based on the toxic compound. It might be that evolution of new species within the P. parvum species complex is driven by changes in toxin type or that they are a result of it. Such a correlation between chemotype and phylotype has never been documented before for a harmful microalga. Chemotaxonomy and ITS-type classification may thus be used to further delimit the P. parvum species complex. (AU)

Processo FAPESP: 14/50420-9 - Metabólitos secundários produzidos por micro-organismos aquáticos e impacto na qualidade de frutos do mar e de peixes de água doce
Beneficiário:Ernani Pinto Junior
Linha de fomento: Auxílio à Pesquisa - Regular