Stygiella

Stygiella
Scientific classification Edit this classification
Domain: Eukaryota
Class: Jakobea
Order: Jakobida
Family: Stygiellidae
Genus: Stygiella
Pánek, Táborský & Čepička 2015.[1]
Type species
Stygiella incarcerata
(Bernard, Simpson and Patterson 2000) Pánek, Tábosky & Čepička 2015
Species
  • S. adhaerens
  • S. agilis
  • S. cryptica
  • S. incarcerata

Stygiella /ˌstɪ.d͡ʒiˈɛ.lə/ is a genus of free-living marine flagellates belonging to the family Stygiellidae in the jakobids (excavata).[1]

The genus currently includes four species, all of which are secondary obligate anaerobes.[1] The species are all unicellular and crescent-shaped.[1][2] All members possess hydrogenosomes, a type of acristate mitochondrion-derived organelle (MRO) that produces hydrogen gas as a metabolic product.[1][3] Stygiella is a deep-branching lineage within excavates, and hydrogenosome genes sometimes show eubacterium-like mechanisms that have been useful for studying of the evolutionary history of eukaryotic mitochondria.[1][3]

  1. ^ a b c d e f Pánek, T., Táborský, P., Pachiadaki, M. G., Hroudová, M., Vlček, Č, Edgcomb, V. P., & Čepička, I. (2015). Combined culture-based and culture-independent approaches provide insights into diversity of jakobids, an extremely plesiomorphic eukaryotic lineage. Frontiers in Microbiology, 6, 1288. Retrieved April 28, 2020.doi:10.3389/2Ffmicb.2015.01288.
  2. ^ Bernard, C, Simpson, A. G. B. & Patterson, D. J. (2000) Some free-living flagellates (protista) from anoxic habitats, Ophelia, 52:2, 113-142, DOI: 10.1080/00785236.1999.10409422.
  3. ^ a b Leger, M. M., Eme, L., Hug, L. A., & Roger, A. J. (2016). [Novel hydrogenosomes in the microaerophilic jakobid Stygiella incarcerata]. Molecular Biology and Evolution, 33(9), 2318-2336. Retrieved April 28, 2020. doi: doi.org/10.1093/2Fmolbev/2Fmsw103.