Haptophyceae

Haptophyceae

[‚hap·tə′fīs·ē‚ē]
(botany)
A class of the phylum Chrysophyta that contains the Coccolithophorida.
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The authors verified that axenic culture of Bacillariophyceae and Dinophyceae was more difficult to obtain than those of Chlorophyceae and Haptophyceae because of them intricated external morphology.
Aug M F-12 1, 2 & 3 Jun Aug O-13 Cyanophyceae Trichodesmium erythraeum Aug O M-12 1, 2 & 3 Jun Aug O D Apr-13 Haptophyceae Phaeocystis globosa Aug O M D Jan-12 1, 2 & 3 Aug O D-13 Genus/Species Impact Dinophyceae Alexandrium tamiyavanichii PSP (GEOHAB, 2010) Cochlodinium polykrikoides Fish mortality (Garate-Lizarraga, Lopez-Cortes, Bustillos-Guzman & Hernandez-Sandoval, 2004) Dinophysis spp.
The ultrastructure and taxonomy of the Chrysophyceae and Prymnesiophyceae (Haptophyceae): A survey with some new observations on the ultrastructure of the Chrysophyceae.
A one-way analysis of variance (ANOVA, [alpha] = 0.05) was used to identify significant differences between treatments in water quality variables (temperature, DO, pH, salinity, TAN, nitrite-nitrogen, nitrate-nitrogen, silicate, orthophosphate, alkalinity, and settleable solids), bacterial densities (Vibrio, THB, and TAB), production variables (final weight, SGR, survival, yield, and FCR) and phytoplankton densities (Bacillariophyceae, Cyanophyceae, Chlorophyceae, Haptophyceae, Dinophyceae, and Euglenophyceae).
Phytoplankton were represented by the classes Cyanophyceae (49.1%), Chlorophyceae (38.0%), Haptophyceae (6.3%), Bacillariophyceae (3.2%), Dinophyceae (2.3%), and Euglenophyceae (1.1%), and no significant difference was observed among treatments (P > 0.05).
Many taxa from the Haptophyceae and Dinophyceae, two dominant bloom-forming groups, not only produce concentrated DMSP but seem to have high DL activity (Table 4), several appear to operate as activated systems.
Significance of tintinnid grazing during blooms of Phaeocystis pouchetii (Haptophyceae) in Dutch coastal waters.
Effect of temperature on a-tocopherol, fatty acid profile, and pigments of Diacronema vlkianum (Haptophyceae).
Growth and calcification in the coccolithophorid Emiliania huxleyi (Haptophyceae) at low salinities.