INVESTIGADORES
UNREIN Fernando
congresos y reuniones científicas
Título:
Bacterivory by mixotrophic phytoflagellates
Autor/es:
UNREIN, F.
Reunión:
Workshop; 18th Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP); 2017
Resumen:
Mixotrophy in algae, defined as the combination of phagotrophy and phototrophy in a single cell, is widespread among most algal groups containing flagellated species. Mixotrophic flagellates vary widely in their ingestion capability and response to abiotic conditions. We used literature data to review the ecological strategy and impact on bacterioplankton of different mixotrophic algal groups: Chrysophyceae (Dinobryon and Ochromonas-like species), Dictyochophyceae (Pseudopedinella), Haptophyceae (Prymnesium, Chrysochromulina), Cryptophyceae (Cryptomonas, Plagioselmis) and Dinoflagellates. Some information about mixotrophy in Raphidophyceae and Prasinophyceae are also available. We extracted information from about 50 articles, including marine and freshwater systems, resulting in more than 600 measurement of grazing rates from natural phytoplankton communities. In addition, we summarised results of experiments performed with isolated strains. We will discuss qualitative and quantitative differences in the use of phagotrophy among dominant phytoflagellates.