Chromera R.B.Moore, Oborník, Janouškovec, Chrudimský, Vancová, D.H.Green, S.W.Wright, N.W.Davies, Bolch, Heimann, Slapeta, Hoegh-Guldberg, Logsdon & D.A.Carter, 2008

Holotype species: Chromera velia R.B.Moore, Oborník, Janouškovec, Chrudimský, Vancová, D.H.Green, S.W.Wright, N.W.Davies, Bolch, Heimann, Slapeta, Hoegh-Guldberg, Logsdon & D.A.Carter

Original publication and holotype designation: Moore, R.B., Obornik, M., Janouskovec, J., Chrudimsky, T., Vancová, M., Green, D.H., Wright, S.W., Davies, N.W., Bolch, C.J.S., Heimann, K., Slapeta, J., Hoegh-Guldberg, O., Logsdon, J.M. & Carter, D.A (2008). A photosynthetic alveolate closely related to apicomplexan parasites. Nature (London) 451: 959-963, 3 figs.

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Description: Unicellular. The immotile life stage reproduces by binary division, but is not restricted to binary division. The immotile life stage is spherical to sub-spherical, 57 m in diameter in the G1 phase of the cell cycle. Cell diameter is up to 9.5 µm in other cell cycle phases. A golden-brown, cone-shaped plastid is present. Immediately after completion of binary division, nascent cells contain a single plastid only. Thylakoid lamellae are in stacks of three or more. The plastid is bounded by four membranes and contains chlorophyll a, but no other chlorophylls. A micropore is present. Internal cilium/cilia are present and anchored at the cell periphery, extending to the periplastidal compartment. Cortical alveoli are flattened, with underlying microtubules. The position of attachment of internal cilium to the cell periphery is defined as the apex of the immotile cell. There is a single, large mitochondrion 1 m in diameter. Mitochondrial cristae are lamellar, ampulliform and tubular in structure. Vesicles of diameter 1 µm attach to and surround the large mitochondrion. The cell wall surface is smooth, with a raised ridge 85 nm wide, extending around an incomplete circle and forking periodically. Free-living or associated with stony corals; it is the type species of the phylum Chromerida. Chromerida differ from all known alveolates in having a photosynthetic secondary plastid bearing chlorophyll a, but no chlorophyll c2.

Information contributed by: Original description.. The most recent alteration to this page was made on 2023-06-20 by E.A. Molinari Novoa.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Adl, S.M., Bass, D., Lane, C.E., Lukeš, J., Schoch, C.L., Smirnov, A., Agatha, S., Berney, C., Brown, M.W., Burki, F., Cárdenas, P., Čepička, I., Chistyakova, L., Del Campo, J. Dunthorn, M., Edvarsen, B., Eglit, Y., Guillou, L., Hampl, V., Heiss, A.A., Hoppenrath, M., James, T.Y., Karnkowska, A., Karpov, S., Kim, E.S., Kolisko, M., Kudryavtsev, A., Lahr, D.J.G., Lara, E., Le Gall, L., Lynn, D.H., Mann, D.G., Massana, R., Mitchell, E.A.D., Morrow, C., Park, J.S., Pawlowski, J.W., Powell, M.J., Richter, D.J., Rueckert, S., Shadwick, L., Shimano, S., Spiegel, F.W., Torruella, G., Youssef, N., Zlatogursky, V. & Zhang, Q.Q. (2019). Revisions to the classification, nomenclature, and diversity of Eukaryotes. Journal of Eukaryotic Microbiology 66: 4-119, 1 figure, 2 table, 3 appendices.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=51418

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 20 June 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 21 November 2024