PsbA based molecular analysis of cross-feeding experiments suggests that Dinophysis acuta does not harbour permanent plastids
Publicated to:Harmful Algae. 35 20-28 - 2014-01-01 35(), DOI: 10.1016/j.hal.2014.03.003
Authors: Raho N; Jaén D; Mamán L; Rial P; Marín I
Affiliations
Abstract
Toxic marine dinoflagellate species of the genus Dinophysis Ehrenberg are obligate mixotrophs that require feeding on the ciliate Mesodinium rubrum and light to achieve growth. It is now well known that they harbour plastids of cryptophyte origin, particularly of the genus Teleaulax, Plagioselmis or Geminigera group (TPG clade). Nevertheless, whether these plastids are permanent, or periodically acquired from M. rubrum prey, need additional studies in different phototrophic Dinophysis species. The origin of plastids from Dinophysis acuta Ehrenberg, one of the main agents of diarrhetic shellfish poisoning (DSP) outbreaks in Western Europe, was investigated here. Cross feeding-starvation experiments were carried out with cultures of D. acuta using M. rubrum as prey, the latter fed with two cryptophyte species, Teleaulax amphioxeia Hill and Teleaulax gracilis, belonging to the TPG clade in addition to Falcomonas sp. and Hemiselmis sp. The fate of cryptophyte plastids transferred to D. acuta through its ciliate prey was investigated using the plastid psbA gene as a tracer. © 2014 Elsevier B.V.
Keywords
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Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Harmful Algae due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2014, it was in position 3/103, thus managing to position itself as a Q1 (Primer Cuartil), in the category Marine & Freshwater Biology.
From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.03, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)
Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-13, the following number of citations:
- Scopus: 10
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Leadership analysis of institutional authors
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (RAHO HOURCADES, NICOLAS) .