Aphanochaete Braun, 1850, nom. cons.

Holotype species: Aphanochaete repens A.Braun

Original publication and holotype designation: Braun, A. (1850 '1851'). Betrachtungen über die Erscheinung der Verjüngung in der Natur. pp. [i]-xvi, [1]-363, pls I-III. Leipzig: Verlag von Wilhelm Engelmann.

Request PDF

Description: Plants consisting of uniseriate, simple or irregularly branched, prostrate filaments. Cells globose or cylindrical, uninucleate, each with single parietal chloroplast and one to several pyrenoids. Setae arise on upper surface of filaments, one or several per cell, unicellular, long, often swollen at base. Asexual reproduction by quadriflagellate zoospores or aplanospores. Sexual reproduction oogamous, large oosphere with stalk and quadriflagellate male gametes. Zygote thick-walled, containing reddish to yellowish oil droplets. Aphanochaete cosmopolitan; frequent epiphyte in hard and eutrophic water (sometimes brackish water). Especially common on aquatic spermatophytes and filamentous green algae including Cladophora and Oedogonium. Principal characters used to distinguish species associated with germling development, length of primary filament, size and form of mature thallus, and shape of setae. Only 4 species considered valid with 2 others doubtful. Ultrastructural studies of two species, A. elegans and A. magna, revealed plasmodesmata and pyrenoids transversed by membranes. Phycoplast ontogeny and other features of cytoskeleton also investigated.

Information contributed by: D.M. John. The most recent alteration to this page was made on 2017-03-06 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 neuter.

Most recent taxonomic treatment adopted: Burova, O.V., Tsarenko, P.M., Kovalenko, O.V., Petlovany, O.A., Mikhailyuk, T.I. & Lilitska, G.G. (2011). Chaetophorales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 264-278. Ruggell: A.R.A. Gantner Verlag K.-G.

Loading names...
Loading notes...
Loading common names...
Loading references...

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=38491

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 March 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 28 March 2024

 
Currently in AlgaeBase: