Emiliania huxleyi

Garrido, J.L., Zapata, M., and Muniz, S., Spectral characterization of new chlorophyll c pigments isolated from Emiliania huxleyi (Prymnesiophyceae) by high performance liquid chromatography, J. Physiol., 31, 761, 1995. 

Garrido, J.L. et al., The main non-polar chlorophyll c from Emiliania huxleyi (Prymnesiophyceae) is a chlorophyll c2-monogalactosyldiacylglyceride ester a mass spectrometry study, J. Physiol., 36, 497, 2000. 

Steinke M, Wolfe GV, Kirst GO (1998) Partial characterisation of dimethylsulfoniopropionate (DMSP) lyase isozymes in 6 strains of Emiliania huxleyi. Mar Ecol Prog Ser 175 215-225... 

The haptophyte microalga Emiliania huxleyi produces biomarkers in the form of long-chain (C37, C38, and C39) alkenones (Brassell, 1993). Alkenones are well preserved in marine sediments and their molecular distributions and isotopic composition have been used to infer paleo-temperatures (Brassell, 1993) and pC022 values (Jasper et ak, 1994), respectively. Unsaturation patterns in the alkenone series are related to the growth temperature of the haptophyte algae that produce these compounds (Brassell et ak, 1986 Prahl and Wakeham, 1987), and hold great promise as indicators of absolute ocean paleotemperature. 

A reference material based on a freeze-dried culture haptophyte Emiliania huxleyi. 

Alkenones Long-chain, unsaturated ketones that are synthesized exclusively by certain haptophyte microalgae (e.g., Emiliania huxleyi). 

Gussone N, et al. (2006) Cellular calcium pathways and isotope fractionation in Emiliania huxleyi. Geology 34 625-628... 

Freeze-dried culture of the haptophyte Emiliania huxleyi... 

Although each of the ten materials proposed as solid reference materials provides clear benefits (each represents a unique matrix), the following subset was considered the highest priority reference materials based on Thalassiosira pseudonana cells (providing an opal matrix), on Emiliania huxleyi (providing a carbonate matrix), and on the three open-ocean sedi-... 

Figure 14.5. Crystal orientation and mechanism of formation of calcite constituting the segment of coccolithophores. Emiliania huxleyi is presented as an example [8].

J. M. Didymus, J. R. Young, and S. Mann, Construction and morphogenesis of the chiral ultrastructure of coccoUths from the marine alga Emiliania huxleyi, Proc. Roy. Soc. London, B258,1994,237-45... 

Emiliania huxleyi is a unicellular alga which is surrounded by a number of loose oval discs of calcium carbonate (coccoliths). It has been shown that the CaC03 of the... 

De Jong, L. W., Dam, W., Westbroek, P., Crenshaw, M. A. Aspects of calcification in Emiliania huxleyi (unicellular alga). In The mechanisms of mineralization in the invertebrates and plants. Watabe, N. Wilbur, K. M. (eds.). The Belle W. Baruch Library in Marine Science Vol. 5, pp. 135. University South Carolina Press 1976... 

De Jong, E. W., Bosch, L., Westbroek, P. Isolation and characterization of a Ca2+-binding polysaccharide associated with coccoliths of Emiliania huxleyi (Lohmann) Kamptner. Eur. 

Nature is full of complex constructions designed to encapsulate molecules within a defined space. At one extreme there are cells, enclosed within phospholipid bilayers, and sea dwelling algae like Emiliania huxleyi that are surrounded by calcium carbonate coccoliths which overlap to form an exoskeleton. On a smaller scale are iron storage proteins such as ferritin that are amorphous in the absence of metal ions but form globular structures once metals are bound. 

Reticulosphaera japonensis Pleurochrysis carterae Isochrysis galbana Emiliania huxleyi j- Phaeocystis sp. PLY 559... 

Varum KM, Kvam BJ, Myklestad SM (1986) Structure of a food-reserve beta-D-glucan produced by the hapto-phyte alga Emiliania huxleyi (Lohmann) Hay and Mohler. Carbohydr Res 152 243-248 Veldhuis MJW, Admiraal W (1985) Transfer of photosynthetic products in gelatinous colonies of Phaeocystis pouchetii (Haptophyceae) and its effect on the measurement of excretion rate. Mar Ecol Prog Ser 26 301-304... 

Another aspect of the contribution of different species to global DMSP production is related to their ability to form blooms. Although Table 1 shows that the haptophytes do not have unusually high concentrations of DMSP per cell, the ability of Phaeocystis sp. and Emiliania huxleyi to dominate phytoplankton biomass during the formation of extensive coastal and oceanic blooms can result in elevated levels of DMS(P) (Table 2). These species therefore have received a great deal of research attention. Phaeocystis particularly is known to form almost mono-specific spring blooms. Within such blooms, DMSP production is constrained by abiotic factors that affect cell physiology and the ability to produce and retain DMS(P). This topic is explored in the next section. 

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