scholarly journals A Gordian knot: Nomenclature and taxonomy of Heterocapsa triquetra (Peridiniales: Heterocapsaceae)

Taxon ◽  
2018 ◽  
Vol 67 (1) ◽  
pp. 179-185 ◽  
Author(s):  
Marc Gottschling ◽  
Urban Tillmann ◽  
Wolf-Henning Kusber ◽  
Mona Hoppenrath ◽  
Malte Elbrächter
Keyword(s):  
Heterocapsa Triquetra

scholarly journals Stationary distribution of a stochastic hybrid phytoplankton model with allelopathy

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Weiming Ji ◽  
Zhaojuan Wang ◽  
Guixin Hu
Keyword(s):  
Stationary Distribution ◽  
Regime Switching ◽  
Heterocapsa Triquetra

Abstract This research proposes and delves into a stochastic competitive phytoplankton model with allelopathy and regime-switching. Sufficient criteria are proffered to ensure that the model possesses a unique ergodic stationary distribution (UESD). Furthermore, it is testified that these criteria are sharp on certain conditions. Some critical functions of regime-switching on the existence of a UESD of the model are disclosed: regime-switching could lead to the appearance of the UESD. The theoretical findings are also applied to research the evolution of Heterocapsa triquetra and Chrysocromulina polylepis.

scholarly journals Competition for phosphorus between two dinoflagellates: A toxic Alexandrium minutum and a non-toxic Heterocapsa triquetra

2008 ◽  
Vol 358 (2) ◽  
pp. 124-135 ◽  
Author(s):  
C. Labry ◽  
E. Erard–Le Denn ◽  
A. Chapelle ◽  
J. Fauchot ◽  
A. Youenou ◽  
...  
Keyword(s):  
Alexandrium Minutum ◽  
Heterocapsa Triquetra

The effect of irradiance on the xanthophyll composition of Skeletonema marinoi (Bacillariophycae), Teleaulax sp., Rhodomonas sp. (Cryptophyceae), and Heterocapsa triquetra (Dinophyceae)

2015 ◽  
Vol 44 (2) ◽  
Author(s):  
Maria Łotocka
Keyword(s):  
Diurnal Variation ◽  
Baltic Sea ◽  
Natural Population ◽  
Xanthophyll Cycle ◽  
The Baltic Sea ◽  
Heterocapsa Triquetra ◽  
The Baltic ◽  
Skeletonema Marinoi

AbstractThe aim of the research was to determine the effect of irradiance on the content of carotenoids in the natural algae community occurring in the Baltic Sea: diatom Skeletonema marinoi, cryptophytes Teleaulax sp., Rhodomonas sp., and dinoflagellate Heterocapsa triquetra.In the natural population of Skeletonema marinoi, the highest fucoxanthin content was observed in the morning and afternoon, unlike with diatoxanthin+diadinoxanthin, where a mean of 0.008 pg cellIn cryptophytes Teleaulax sp. and Rhodomonas sp., no carotenoids of the xanthophyll cycle were detected. The content of alloxanthin showed diurnal variation from 0.048 pg cell

scholarly journals Phylogenetic history of plastid-targeted proteins in the peridinin-containing dinoflagellate Heterocapsa triquetra

2006 ◽  
Vol 56 (6) ◽  
pp. 1439-1447 ◽  
Author(s):  
Ross F. Waller ◽  
Nicola J. Patron ◽  
Patrick J. Keeling
Keyword(s):  
Expressed Sequence Tag ◽  
Sequence Data ◽  
Nuclear Genome ◽  
Apicomplexan Parasites ◽  
Heterocapsa Triquetra ◽  
Est Sequencing ◽  
Plastid Proteins ◽  
Red Algal ◽  
History Of ◽  
Host Nucleus

The evolutionary history and relationship between plastids of dinoflagellate algae and apicomplexan parasites have been controversial both because the organelles are unusual and because their genomes contain few comparable genes. However, most plastid proteins are encoded in the host nucleus and targeted to the organelle, and several of these genes have proved to have interesting and informative evolutionary histories. We have used expressed sequence tag (EST) sequencing to generate gene sequence data from the nuclear genome of the dinoflagellate Heterocapsa triquetra and inferred phylogenies for the complete set of identified plastid-targeted proteins. Overall, dinoflagellate plastid proteins are most consistently related to homologues from the red algal plastid lineage (not green) and, in many of the most robust cases, they branch with other chromalveolate algae. In resolved phylogenies where apicomplexan data are available, dinoflagellates and apicomplexans are related. We also identified two cases of apparent lateral, or horizontal, gene transfer, one from the green plastid lineage and one from a bacterial lineage unrelated to plastids or cyanobacteria.

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