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Relationship between vegetative cells and cyst production during Alexandrium minutum bloom in Arenys de Mar harbour (NW Mediterranean)
The studies of excystment showed a high germination percentage (91%) and germling viability (100%).
Resting cysts of the toxigenic dinoflagellate genus Alexandrium in recent sediments from the Western Mediterranean coast, including the first description of cysts of A. kutnerae and A. peruvianum
- I. Bravo, E. Garcés, J. Diogène, S. Fraga, N. Sampedro, R. Figueroa
- Environmental Science
- 1 August 2006
The cyst concentration data revealed A. catenella and A. minutum to be the most abundant cysts in the region, and they were detected in semi-enclosed waters, such as harbours, highlighting the importance of water exchange in the accumulation of cyst beds of these species.
Towards an Ecological Understanding of Dinoflagellate Cyst Functions
The concepts of resting and pellicle cysts are reviewed and, when necessary, redefine, examining both their structural and their functional characteristics in the context of the life cycle strategies of several dinoflagellate species.
Alexandrium catenella and Alexandrium minutum blooms in the Mediterranean Sea: Toward the identification of ecological niches
The intricacies of dinoflagellate pellicle cysts: The example of Alexandrium minutum cysts from a bloom-recurrent area (Bay of Baiona, NW Spain)
Description, host-specificity, and strain selectivity of the dinoflagellate parasite Parvilucifera sinerae sp. nov. (Perkinsozoa).
Genetic diversity within and genetic differentiation between blooms of a microalgal species
- Karen Lebret, E. Kritzberg, R. Figueroa, K. Rengefors
- Biology, Environmental ScienceEnvironmental microbiology
- 1 September 2012
This study highlights the importance of the life cycle for the intraspecific genetic diversity of microbial species, which alternates between sexual and asexual reproduction, in the freshwater bloom-forming microalga Gonyostomum semen.
COMPARATIVE STUDY OF THE LIFE CYCLES OF ALEXANDRIUM TAMUTUM AND ALEXANDRIUM MINUTUM (GONYAULACALES, DINOPHYCEAE) IN CULTURE
A synchronization–flow cytometry method for discriminating diploids formed by sexual fusion (planozygotes) from cells with 2C DNA content resulting from self-duplication of DNA (dividing cells) was described and indicated that light might not be needed for the sexual fusion and formation of planozygotes.
Bloom dynamics and life cycle strategies of two toxic dinoflagellates in a coastal upwelling system (NW Iberian Peninsula)
Comparative study of the life cycles of Alexandrium tamutum and Alexandrium minutum (Gonyaulacales, Dinophyceae) in culture 1
In both species, cyst appearance needed to be explained by the existence of more than two sexual types (+/–), which indicates a complex heterothallic mating type, however, planozygotes of both species may divide instead of encysting.