Bioluminescence is reported in members of 18 dinoflagellate genera. Species of dinoflagellates are known to have different bioluminescent signatures, making it difficult to assess the presence of particular species in the water column using optical tools, particularly when bioluminescent populations are in nonbloom conditions. A "universal" oligonucleotide primer set, along with species and gen...

ABSTRACT The Jurassic to Cretaceous strata exposed in the Rollrock Section, Sverdrup Basin, Arctic Canada, represent one of northernmost continuous outcrops spanning this poorly understood transition. Oxfordian–Valanginian mudstones Section were deposited a shallow marine environment and, as such, provide ideal lithology investigate response high latitude dinoflagellate cyst populations frequen...

Dinoflagellate cyst assemblages from 15 modern surface sediment samples of the Bay Quiberon (Southern Brittany shelf) have been examined to assess their potential as marine bio-indicators for paleoenvironmental reconstructions in a shallow coastal environment. Some discrepancies are noted distribution dinocyst taxa study area, and particularly regarding concentration diversity (26 different ide...

The invasive freshwater dinoflagellate Ceratium furcoides is extending its distribution in South America with increasing environmental impacts associated bloom. We here report two events related to C. expansion Uruguay: (1) the main drivers (physical and chemical factors, extreme wind zooplankton composition) of first appearance bloom 2012 a subtropical eutrophic shallow lake (Lake Blanca, Urug...

Marine dinoflagellates (alveolata) are microalgae of which some cause harmful algal blooms and produce a broad variety of most likely polyketide synthesis derived phycotoxins. Recently, novel polyketide synthesase (PKS) transcripts have been described from the Florida red tide dinoflagellate Karenia brevis (gymnodiniales) which are evolutionarily related to Type I PKS but were apparently expres...

Twenty surface samples were taken from road cuttings along Okpekpe and Imiegba areas located in Benin Flank of Anambra Basin, Nigeria with an aim to establish the biozones, age paleodepositional environments Mamu Formation. Using palynological laboratory standard procedures, shale collected Formation study area prepared analyzed. The recovered marker pollens, spores dinoflagellate cysts are Mil...

Several dinoflagellate species have plastids that more closely resemble those of an unrelated algal group, the haptophytes, suggesting these plastids have been obtained by tertiary endosymbiosis. Because both groups are photosynthetic, all of the genes for nuclear-encoded plastid proteins might be supplied by the dinoflagellate host or some of them might have been replaced by haptophyte genes. ...

BACKGROUND The packaging, expression, and maintenance of nuclear genomes using histone proteins is a ubiquitous and fundamental feature of eukaryotic cells, yet the phylum Dinoflagellata has apparently abandoned this model of nuclear organization. Their nuclei contain permanently condensed, liquid crystalline chromosomes that seemingly lack histone proteins, and contain remarkably large genomes...