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Roseofilum reptotaenium
Scientific classification
Domain:	Bacteria
Phylum:	Cyanobacteria
Class:	Cyanophyceae
Order:	Oscillatoriales
Family:	Coleofasciculaceae
Genus:	Roseofilum
Species:	R. reptotaenium
Binomial name
Roseofilum reptotaenium D. Casamatta, D. Stanic, M. Gantar, & L.L. Richardson, 2012

Roseofilum reptotaenium, also called coral killer, is a filamentous species of cyanobacteria. It is the pathogenic agent responsible for black band disease on Siderastrea siderea coral.

Etymology

Genus name Roseofilum is derived from words Roseo, meaning red, and filum, meaning thread.

Species was named for the mode of growth on corals (Repto = ribbon; taenia = creeping; hence creeping ribbons).

Description

Epizoic algae that is pathogen of some coral species, forming black band-shaped mats that migrate across coral tissue, actively lysing coral cells, up to several cm wide, up to 1 mm thick. Filaments typically with a single trichome. Sheath usually present, thin, colorless. Trichomes with gliding motility, slightly constricted at the crosswalls. Cells brownish red, more or less isodiametric or longer than wide, with radial thylakoids, 2.5–4.0 mm long. Trichomes with one rounded and one conical end cell.

References

1. Casamatta, Dale; Stanić, Dina; Gantar, Miroslav; Richardson, Laurie L. (2012-09-01). "Characterization of Roseofilum reptotaenium (Oscillatoriales, Cyanobacteria) gen. et sp. nov. isolated from Caribbean black band disease". Phycologia. 51 (5): 489–499. doi:10.2216/11-10.1. ISSN 0031-8884.
2. Sardet, Christian (5 June 2015). Rafael D. Rosengarten; Theodore Rosengarten (eds.). Plankton: Wonders of the Drifting World. Translated by Christian Sardet; Dana Sardet. Chicago: University of Chicago Press. p. 36. ISBN 978-0-226-18871-3. OCLC 889996855.
3. "Species: Roseofilum reptotaenium". lpsn.dsmz.de. Retrieved 2020-09-25.

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