Botryochloropsis H.R.Preisig & C.Wilhelm, 1989

Holotype species: Botryochloropsis similis H.R.Preisig & C.Wilhelm

Original publication and holotype designation: Preisig, H.R. & Wilhelm, C. (1989). Ultrastructure, pigments and taxonomy of Botryochloropsis similis gen. et. sp. nov. (Eustigmatophyceae). Phycologia 28: 61-69.

Request PDF

Description: Spherical unicells, 3-6 µm in diam., without stipes or attachment discs, clustered in irregular colonies with up to several thousand cells. Cell wall smooth, quite thick in older cells, in one piece; surrounded by finely fibrillar mucilage which holds the cells of a colony together. Single lobed parietal yellow-green chloroplast, without a pyrenoid. Major xanthophylls are violaxanthin and vaucheriaxanthin-ester (typical for the class). Central red globule and refractile rods. Reproduction by 2-4(8) autospores, or 2-4(8) elongate zoospores with 2 emergent flagella typically eustigmatophycean (one short, thin, smooth; the other longer, thicker, with bilateral array of stiff hairs and basal swelling); eyespot indistinct, anterior, extraplastidial and in contact with swelling on long flagellum. Freshwater; from greenhouse water-tank in Zurich botanic garden.Spherical unicells, 3-6 µm in diam., without stipes or attachment discs, clustered in irregular colonies with up to several thousand cells. Cell wall smooth, quite thick in older cells, in one piece; surrounded by finely fibrillar mucilage which holds the cells of a colony together. Single lobed parietal yellow-green chloroplast, without a pyrenoid. Major xanthophylls are violaxanthin and vaucheriaxanthin-ester (typical for the class). Central red globule and refractile rods. Reproduction by 2-4(8) autospores, or 2-4(8) elongate zoospores with 2 emergent flagella typically eustigmatophycean (one short, thin, smooth; the other longer, thicker, with bilateral array of stiff hairs and basal swelling); eyespot indistinct, anterior, extraplastidial and in contact with swelling on long flagellum. Freshwater; from greenhouse water-tank in Zurich botanic garden.

Information contributed by: G. F. Leedale. The most recent alteration to this page was made on 2021-10-08 by M.D. Guiry.

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: Eliáš, M., Amaral, R., Fawley, K.P., Fawley, M.W., Nemcová, Y., Neustupa, J., P?ibyl, P., Santos, L.M.A. & Ševcíková, T.. (2017). Eustigmatophyceae. In: Handbook of the Protists. (Archibald, J.M., Simpson, A.G.B. & Slamovits, C.H. Eds), pp. 367-406. Cham: Springer International Publishing AG.

Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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=45196

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 October 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 20 May 2024