Pigment diversity of coccolithophores in relation to taxonomy, phylogeny and ecological preferences

Lenning, K. van; Probert, Ian; Latasa, Mikel; Estrada, Marta; Young, Jeremy R.

doi:10.1007/978-3-662-06278-4_3

Cited by 22 publications

(20 citation statements)

References 59 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Barlow et al (2006) provided further details concerning all pigment data acquired during this cruise. In the present study, we focused on in situ concentrations of 19'-hexanoyloxyfucoxanthin (19'-HF), a mar ker pigment for openocean prymnesiophytes including the coccolithophore Emiliania huxleyi (Jeffrey & Vesk 1997, Barlow et al 2004, Van Lenning et al 2004, Cook et al 2011.…”

Section: Methodsmentioning

confidence: 99%

Environmental controls on Emiliania huxleyi morphotypes in the Benguela coastal upwelling system (SE Atlantic)

Henderiks

Winter²,

Elbrächter³

et al. 2012

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Environmental controls on Emiliania huxleyi morphotypes in the Benguela coastal upwelling system (SE Atlantic)

Henderiks

Winter²,

Elbrächter³

et al. 2012

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

“…In our approach, both light availability and mixed layer depth are accounted for in our E MLD calculation, which explains the relatively high Spearman's r S value (0.399) for this variable. A possible explanation as to why irradiance levels would have a different effect on different coccolithophore species is the fact that there is extra ordinary diversity in the pigment composition of different species, and even different strains of the same species (Van Lenning et al 2004). These variations include different pigment contents with an efficient light energy transfer function or with photoprotective function, and have an evolutionary origin that may result from adaptations to low or high irradiance.…”

Section: Environmental Variables Influencing Cocco Lithophore Communimentioning

confidence: 99%

Irradiance and pH affect coccolithophore community composition on a transect between the North Sea and the Arctic Ocean

Charalampopoulou

Poulton

Tyrrell

et al. 2011

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Little is known about the distribution of coccolithophores in Arctic regions, or the reasons why they are absent from certain locations but thrive in others. Factors thought to affect coccolithophore distribution include nutrients, salinity, temperature and light, as well as carbonate chemistry parameters. Here we present data collected in summer 2008 along a transect between the North Sea and Svalbard (Arctic). Coccolithophore abundance and diversity were measured and compared with a set of environmental variables that included macronutrients, salinity, temperature, irradiance, pH and Ω calcite . Eighteen coccolithophore species were found in the southern North Sea where coccolithophores were previously thought to be absent. In the ice-covered region north of Svalbard, coccolithophores were scarce and dominated by the family Papposphaeraceae. A multivariate approach showed that changes in pH and mixed layer irradiance explained most of the variation in coccolithophore distribution and community composition (Spearman's r S = 0.62). Differences between the Svalbard population and those from other regions were mostly explained by pH (r S = 0.45), whereas mixed layer irradiance explained most of the variation between the North Sea, Norwegian Sea and Arctic water assemblages (r S = 0.40). Estimates of cell specific calcification rates showed that species composition can considerably affect community calcification. Consequently, future ocean acidification (changes in pH) and stratification due to global warming (changes in mixed layer irradiance) may influence pelagic calcification by inducing changes in the species composition of coccolithophore communities.KEY WORDS: Coccolithophore · Emiliania huxleyi · Arctic Ocean · pH · Irradiance · Ocean acidification Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 431: [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] 2011 concentrations and light conditions (Bopp et al. 2001, Sarmiento et al. 2004, as well as ocean acidification (Orr et al. 2005). Extensive experimental and field research on Emiliania huxleyi, the most common cocco litho phore, indicates that calcification in this species depends strongly on irradiance and is stimulated by nutrient stress, even though cells grow well under high nutrient concentrations and low irradiance (see review by Zondervan 2007). However, elevated pCO 2 levels have varying effects on the calcifying ability of different E. huxleyi strains (Riebesell et al. 2000, Iglesias-Rodriguez et al. 2008, Langer et al. 2009) and different coccolithophore species (Langer et al. 2006). Moreover, effects of simultaneous changes in multiple environmental variables are diverse. For example, light saturation for E. huxleyi growth depends on temperature (Paasche 2001, Zondervan 2007 whereas the sensitivity of E. huxleyi calcification and organic C fixation to elevated pCO 2 depend on their replete or depleted nutrient status (Sciandra et al. 2003, Delille et al. 2005, E...

show abstract

“…Airs and Llewellyn (2006) explored improved liquid chromatography/mass spectrometry characterization of acyloxyfucoxanthins but limited their work to a single E. huxleyi strain (MBA92). A wider survey of coccolithophores with respect to pigment diversity including 21 E. huxleyi strains was conducted by van Lenning et al. (2004) .…”

mentioning

confidence: 99%

“…Pigment profiles. While previous studies have characterized the pigment profile of E. huxleyi (van Lenning et al. 2004, Zapata et al.…”

mentioning

confidence: 99%

Photosynthetic Pigment and Genetic Differences Between Two Southern Ocean Morphotypes of Emiliania Huxleyi (Haptophyta)1

Cook

Whittock

Wright

et al. 2011

Journal of Phycology

View full text Add to dashboard Cite

The widespread coccolithophorid Emiliania huxleyi (Lohmann) W. W. Hay et H. Mohler plays a pivotal role in the carbon pump and is known to exhibit significant morphological, genetic, and physiological diversity. In this study, we compared photosynthetic pigments and morphology of triplicate strains of Southern Ocean types A and B/C. The two morphotypes differed in width of coccolith distal shield elements (0.11-0.24 μm, type A; 0.06-0.12 μm, type B/C) and morphology of distal shield central area (grill of curved rods in type A; thin plain plate in type B/C) and showed differences in carotenoid composition. The mean 19'-hexanoyloxyfucoxanthin (Hex):chl a ratio in type B/C was >1, whereas the type A ratio was <1. The Hex:fucoxanthin (fuc) ratio for type B/C was 11 times greater than that for type A, and the proportion of fuc in type A was 6 times higher than that in type B/C. The fuc derivative 4-keto-19'-hexanoyloxyfucoxanthin (4-keto-hex) was present in type A but undetected in B/C. DNA sequencing of tufA distinguished morphotypes A, B/C (indistinguishable from B), and R, while little variation was observed within morphotypes. Thirty single nucleotide polymorphisms were identified in the 710 bp tufA sequence, of which 10 alleles were unique to B/C and B morphotypes, seven alleles were unique to type A, and six alleles were unique to type R. We propose that the morphologically, physiologically, and genetically distinct Southern Ocean type B/C sensu Young et al. (2003) be classified as E. huxleyi var. aurorae var. nov. S. S. Cook et Hallegr.

show abstract

Pigment diversity of coccolithophores in relation to taxonomy, phylogeny and ecological preferences

Cited by 22 publications

References 59 publications

Environmental controls on Emiliania huxleyi morphotypes in the Benguela coastal upwelling system (SE Atlantic)

Environmental controls on Emiliania huxleyi morphotypes in the Benguela coastal upwelling system (SE Atlantic)

Irradiance and pH affect coccolithophore community composition on a transect between the North Sea and the Arctic Ocean

Photosynthetic Pigment and Genetic Differences Between Two Southern Ocean Morphotypes of Emiliania Huxleyi (Haptophyta)1

Contact Info

Product

Resources

About