Haptophyta

Abstract

The haptophytes are a group of microalgae, mostly marine, usually phototrophic, that possess a unique organelle, the haptonema, situated close to the flagella. Species identification traditionally relies on the morphology of the unmineralised or mineralised scales, although some recent advances have been made using molecular genetics. A number of taxa form blooms, some of which are toxic to marine life. The haptophytes include the calcified scaleā€producing coccolithophorids, whose ancestors are partly responsible for the vast chalk deposits found in northern Europe.

Key Concepts:

  • The haptophytes are a monophyletic group that possess a haptonema.

  • Species identification is based almost entirely on scale morphology and the combination of scale types.

  • Blooms can sometimes cover vast areas of the ocean, contributing significantly to the global carbon and sulphur cycles, and may be toxic.

  • Speciesā€specific viruses may be involved in the termination of haptophyte blooms.

  • The majority of the chalk and limestone deposits of the Mesozoic and Cenozoic eras were produced by continual coccolith accumulation in the sediments.

Keywords: algal blooms; coccoliths; haptonema; life cycles; scales

Figure 1.

Cross‐section of a Pleurochrysis carterae cell. Scale bar=1 μm. Redrawn and modified with permission from Westbroek et al. (http://www.oup.com).

Figure 2.

Holococcoliths of Coronosphaera mediterranea (gracillima phase). Scale bar=1 μm. Scanning electron micrograph of a water sample collected off the Puerto Rican coast, taken by Kentaroh Oguchi, Yamagata University, Japan.

Figure 3.

Heterococcolith‐bearing coccosphere of Emiliania huxleyi, perhaps the commonest living haptophyte. Scanning electron photomicrograph; taken from a filtered water sample collected from the North Atlantic. Reproduced with permission from Dr Juan Alcober, Universidad de Valencia, Spain.

Figure 4.

Late Cretaceous chalk cliffs along the south Dorset coast, UK, showing Man‐o'‐War Cove, Durdle Cove, Scratchy Bottom, Swyre Head and Bat's Head.

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References

Alcober J and Jordan RW (1997) An interesting association between Neosphaera coccolithomorpha and Ceratolithus cristatus. European Journal of Phycology 32: 91–93.

Billard C (1994) Life cycles. In: Green JC and Leadbeater BSC (eds) The Haptophyte Algae, pp. 167–186. Oxford: Oxford University Press.

Blackburn SI and Cresswell G (1993) A coccolithophorid bloom in Jervis Bay, Australia. Australian Journal of Marine and Freshwater Research 44: 253–260.

Bown PR, Burnett JA and Gallagher LT (1992) Calcareous nannoplankton evolution. Memoire di Scienze Geologische XL 111: 1–17.

Brown CW and Yoder JA (1994) Coccolithophorid blooms in the global ocean. Journal of Geophysical Research 99(C4): 7467–7482.

Chang FH and Ryan KG (1985) Prymnesium calathiferum sp. nov. (Prymnesiophyceae), a new species isolated from Northland, New Zealand. Phycologia 24: 191–198.

Cros L and Fortuño J‐M (2002) Atlas of northwestern Mediterranean Coccolithophores. Scientia Marina 66: 1–186.

Cros L, Kleijne A, Billard C et al. (2000) New examples of holococcolith–heterococcolith combination coccospheres and their implications for coccolithophorid biology. Marine Micropaleontology 39: 1–34.

Davidson AT and Marchant HJ (1992) The biology and ecology of Phaeocystis (Prymnesiophyceae). Progress in Phycological Research 8: 1–45.

Didymus JM, Young JR and Mann S (1994) Construction and morphogenesis of the chiral ultrastructure of coccoliths from the marine alga Emiliania huxleyi. Proceedings of the Royal Society of London, Series B: Biological Sciences 258: 237–245.

Edvardsen B and Medlin L (1998) Genetic analyses of authentic and alternate forms of Chrysochromulina polylepis (Haptophyta). Phycologia 37: 275–283.

Edvardsen B, Eikrem W, Green JC et al. (2000) Phylogenetic reconstructions of the Haptophyta inferred from 18S ribosomal DNA sequences and available morphological data. Phycologia 39: 19–35.

Frada M, Percopo I, Young JR et al. (2009) First observations of heterococcolithophore–holococcolithophore life cycle combinations in the family Pontosphaeraceae (Calcihaptophycideae, Haptophyta). Marine Micropaleontology 71: 20–27.

Frada M, Young J, Cachão M et al. (2010) A guide to extant coccolithophores (Calcihaptophycidae, Haptophyta) using light microscopy. Journal of Nannoplankton Research 31: 58–112.

Fresnel J (1994) A heteromorphic life cycle in two coastal coccolithophorids, Hymenomonas lacuna and Hymenomonas coronata (Prymnesiophyceae). Canadian Journal of Botany 72: 1455–1462.

Fresnel J and Probert I (2005) The ultrastructure and life cycle of the coastal coccolithophorid Ochrosphaera neapolitana (Prymnesiophyceae). European Journal of Phycology 40: 105–122.

Hagino K, Takano Y and Horiguchi T (2009) Pseudo‐cryptic speciation in Braarudosphaera bigelowii (Gran and Braarud) Deflandre. Marine Micropaleontology 72: 210–221.

Hibberd DJ (1976) The ultrastructure and taxonomy of the Chrysophyceae and Prymnesiophyceae (=Haptophyceae): a survey with some new observations on the ultrastructure of the Chrysophyceae. Botanical Journal of the Linnean Society 72: 55–80.

Johnsen G, Dalløkken R, Eikrem W et al. (1999) Eco‐physiology, bio‐optics and toxicity of the ichthyotoxic Chrysochromulina leadbeateri (Prymnesiophyceae). Journal of Phycology 35: 1465–1476.

Jones HL, Leadbeater BSC and Green JC (1993) Mixotrophy in marine species of Chrysochromulina (Prymnesiophyceae). Ingestion and digestion of a small green flagellate. Journal of the Marine Biological Association of the United Kingdom 73: 283–296.

Jordan RW (2009) Coccolithophores. In: Schaechter M (ed.) Encyclopedia of Microbiology, pp. 593–605. Oxford: Elsevier.

Jordan RW, Cros L and Young JR (2004) A revised classification scheme for living haptophytes. Micropaleontology 50(suppl. 1): 55–79.

Jordan RW, Kleijne A, Heimdal BR and Green JC (1995) A glossary of the extant Haptophyta of the world. Journal of the Marine Biological Association of the United Kingdom 75: 769–814.

Kawachi M, Inouye I, Maeda O and Chihara M (1991) The haptonema as a food capturing device: observations on Chrysochromulina hirta (Prymnesiophyceae). Phycologia 30: 563–573.

Kleijne A (1991) Holococcolithophorids from the Indian Ocean, Red Sea, Mediterranean Sea and North Atlantic Ocean. Marine Micropaleontology 17: 1–76.

Larsen A and Edvardsen B (1998) A study of relative ploidy levels in Prymnesium parvum and P. patelliferum (Haptophyta) analysed by flow cytometry. Phycologia 37: 412–424.

Larsen A, Eikrem W and Paasche E (1993) Growth and toxicity in Prymnesium patelliferum (Prymnesiophyceae) isolated from Norwegian waters. Canadian Journal of Botany 71: 1357–1362.

Larsen JB, Larsen A, Bratbak G and Sandaa R‐A (2008) Phylogenetic analysis of members of the Phycodnaviridae virus family, using amplified fragments of the major capsid protein gene. Applied and Environmental Microbiology 74: 3048–3057.

Liu H, Aris‐Brosou S, Probert I and de Vargas C (2010) A time line of the environmental genetics of the haptophytes. Molecular Biology and Evolution 27: 161–176.

Maestrini SY and Granéli E (1991) Environmental conditions and ecophysiological mechanisms which led to the 1988 Chrysochromulina polylepis bloom: an hypothesis. Oceanologica Acta 14: 397–413.

Moestrup Ø (1979) Identification by electron microscopy of marine nanoplankton from New Zealand, including the description of four new species. New Zealand Journal of Botany 17: 61–95.

Moon‐van der Staay SY, van der Staay GWM, Guillou L et al. (2000) Abundance and diversity of prymnesiophytes in the picoplankton community from equatorial Pacific Ocean inferred from 18S rDNA sequences. Limnology and Oceanography 45: 98–109.

Noël M‐H, Kawachi M and Inouye I (2004) Induced dimorphic life cycle of a coccolithophorid, Calyptrosphaera sphaeroidea (Prymnesiophyceae, Haptophyta). Journal of Phycology 40: 112–129.

Nygaard K and Tobiesen A (1993) Bacterivory in algae: a survival strategy during nutrient limitation. Limnology and Oceanography 38: 273–279.

Parke M and Adams I (1960) The motile (Crystallolithus hyalinus Gaarder and Markali) and nonmotile phases in the life history of Coccolithus pelagicus (Wallich) Schiller. Journal of the Marine Biological Association of the United Kingdom 39: 263–274.

Parke M, Manton I and Clarke B (1955) Studies on marine flagellates. II. Three new species of Chrysochromulina. Journal of the Marine Biological Association of the United Kingdom 34: 579–609.

Prahl FG and Wakeham SG (1987) Calibration of unsaturation patterns in long‐chain ketone compositions for palaeotemperature assessment. Nature 330: 367–369.

Probert I and Houdan A (2004) The laboratory culture of coccolithophores. In: Thierstein HR and Young JR (eds) Coccolithophores. From Molecular Processes to Global Impact, pp. 217–249. Berlin, Heidelberg, New York: Springer‐Verlag.

Quinn PS, Cortes MY and Bollmann J (2005) Morphological variation in the deep ocean‐dwelling coccolithophore Florisphaera profunda (Haptophyta). European Journal of Phycology 40: 123–133.

Rayns DG (1962) Alternation of generations in a coccolithophorid, Cricosphaera carterae (Braarud and Fagerl) Braarud. Journal of the Marine Biological Association of the United Kingdom 42: 481–484.

Rosell‐Melé A, Eglinton G, Pflaumann U and Sarnthein M (1995) Atlantic core‐top calibration of the U37K index as a sea‐surface palaeotemperature indicator. Geochimica et Cosmochimica Acta 59: 3099–3107.

Rowson JD, Leadbeater BSC and Green JC (1986) Calcium carbonate deposition in the motile (Crystallolithus) phase of Coccolithus pelagicus (Prymnesiophyceae). British Phycological Journal 21: 359–370.

Sánchez Puerta MV, Bachvaroff TR and Delwiche CF (2005) The complete plastid genome sequence of the haptophyte Emiliania huxleyi: a comparison to other plastid genomes. DNA Research 12: 151–156.

Sieburth JMcN (1960) Acrylic acid, an “antibiotic” principle in Phaeocystis blooms in Antarctic waters. Science 132: 676–677.

Tillmann U (1998) Phagotrophy by a plastidic haptophyte, Prymnesium patelliferum. Aquatic Microbial Ecology 14: 155–160.

Tillmann U (2003) Kill and eat your predator: a winning strategy of the planktonic flagellate Prymnesium parvum. Aquatic Microbial Ecology 32: 73–84.

Underdal B, Skulberg OM, Dahl E and Aune T (1989) Disastrous bloom of Chrysochromulina polylepis (Prymnesiophyceae) in Norwegian coastal waters 1988 – mortality in marine biota. Ambio 18: 265–270.

van Lenning K, Probert I, Latasa M, Estrada M and Young JR (2004) Pigment diversity of coccolithophores in relation to taxonomy, phylogeny and ecological preferences. In: Thierstein HR and Young JR (eds) Coccolithophores. From Molecular Processes to Global Impact, pp. 51–73. Berlin, Heidelberg, New York: Springer‐Verlag.

Vaulot D, Birrien JL, Marie D et al. (1994) Morphology, ploidy, pigment composition, and genome size of cultured strains of Phaeocystis (Prymnesiophyceae). Journal of Phycology 30: 1022–1035.

Westbroek P, Brown CW, van Bleijswijk J et al. (1993) A model system approach to biological climate forcing. The example of Emiliania huxleyi. Global and Planetary Change 8: 27–46.

Westbroek P, van der Wal P, van Emburg PR, de Vrind‐de Jong EW and de Bruijn WC (1986) Calcification in the coccolithophorids Emiliania huxleyi and Pleurochrysis carterae I. Ultrastructural aspects. In: Leadbeater BSC and Riding R (eds) Biomineralization in Lower Plants and Animals, pp. 189–203. Oxford: Clarendon Press.

Yoshida M, Noël M‐H, Nakayama T, Naganuma T and Inouye I (2006) A haptophyte bearing siliceous scales: ultrastructure and phylogenetic position of Hyalolithus neolepis gen. et sp. nov. (Prymnesiophyceae, Haptophyta). Protist 157: 213–234.

Young JR (1994) Functions of coccoliths. In: Winter A and Siesser WG (eds) Coccolithophores, pp. 63–82. Cambridge: Cambridge University Press.

Young JR, Bergen JA, Bown PR et al. (1997) Guidelines for coccolith and calcareous nannofossil terminology. Palaeontology 40: 875–912.

Young JR, Didymus JM, Bown PR, Prins B and Mann S (1992) Crystal assembly and evolution in heterococcoliths. Nature 356: 516–518.

Further Reading

Bown PR (ed.) (1998) Calcareous Nannofossil Biostratigraphy. Cambridge: Chapman & Hall.

Green JC and Jordan RW (2002) Order prymnesiida. In: Lee JJ, Leedale GF and Bradbury PC (eds) The Illustrated Guide to the Protozoa, 2nd edn, pp. 1268–1302. Lawrence, USA: Society of Protozoologists & Allen Press Inc.

Green JC and Leadbeater BSC (eds) (1994) The Haptophyte Algae. Oxford: Clarendon Press.

Jordan RW (2002) Environmental applications of calcareous nannofossils. In: Haslett SK (ed.) Quaternary Environmental Micropalaeontology, pp. 185–206. London: Arnold Publishers Ltd.

Siesser WG (1993) Calcareous nannoplankton. In: Lipps JH (ed.) Fossil Prokaryotes and Protists, pp. 169–201. Boston, MA: Blackwell Scientific.

Thierstein HR and Young JR (eds) (2004) Coccolithophores. From Molecular Processes to Global Impact. Berlin, Heidelberg, New York: Springer‐Verlag.

Tomas CR (ed.) (1993) Marine Phytoplankton: A Guide to Naked Flagellates and Coccolithophorids. London: Academic Press.

Triantaphyllou M (ed.) (2004) Advances in the biology, ecology and taphonomy of extant calcareous nannoplankton. Micropaleontology 50 (suppl. 1): 1–170.

Winter A and Siesser WG (eds) (1994) Coccolithophores. Cambridge: Cambridge University Press.

Young JR, Thierstein HR and Winter A (eds) (2000) Nannoplankton ecology and palaeoecology. Marine Micropaleontology 39: 1–318.

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Jordan, Richard W(Feb 2012) Haptophyta. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1002/9780470015902.a0001981.pub2]