Oxyrrhis

Oxyrrhis
Oxyrrhis marina
Scientific classification
Domain:
Eukaryota
(unranked):
SAR
(unranked):
Alveolata
Phylum:
Dinoflagellata
Class:
Oxyrrhidophyceae
Order:
Oxyrrhinales
Family:
Oxyrrhinaceae
Genus:
Oxyrrhis

Dujardin, 1841
Species
  • O. marina Dujardin 1841
  • O. parasitica Poche 1903

Oxyrrhis is a genus of heterotrophic dinoflagellate, the only genus in the family Oxyrrhinaceae. It inhabits a range of marine environments worldwide and is important in the food web dynamics of these ecosystems.[1][2][3] It has the potential to be considered a model organism for the study of other protists.[4] Oxyrrhis is an early-branching lineage and has long been described in literature as a monospecific genus, containing only Oxyrrhis marina.[2][4] Some recent molecular phylogenetic studies argue that Oxyrrhis comprises O. marina and O. maritima as distinct species, while other publications state that the two are genetically diverse lineages of the same species.[2] The genus has previously been suggested to contain O. parasitica as a separate species, however the current consensus appears to exclude this, with Oxyrrhis being monospecific and containing O. marina and O. maritima as separate lineages of the type species. The genus is characterised by its elongated body which is anteriorly prolonged to a point, its complex flagellar apparatuses which attach to the ventral side of the cell, and the unique features of its nucleus.[1][5]

  1. ^ a b Guo, Zhiling; Zhang, Huan; Liu, Sheng; Lin, Senjie (2013-10-21). "Biology of the Marine Heterotrophic Dinoflagellate Oxyrrhis marina: Current Status and Future Directions". Microorganisms. 1 (1): 33–57. doi:10.3390/microorganisms1010033. ISSN 2076-2607. PMC 5029500. PMID 27694763.
  2. ^ a b c Jung, Min Kyoung; Yin, Tae Yeon; Moon, Seung Joo; Park, Jaeyeon; Yoon, Eun Young (January 2021). "Taxonomy and Physiology of Oxyrrhis marina and Oxyrrhis maritima in Korean Waters". Water. 13 (15): 2057. doi:10.3390/w13152057. ISSN 2073-4441.
  3. ^ Watts, P. C.; Martin, L. E.; Kimmance, S. A.; Montagnes, D. J. S.; Lowe, C. D. (2011). "The distribution of Oxyrrhis marina: A global disperser or poorly characterized endemic?". Journal of Plankton Research. 33 (4): 579–589. doi:10.1093/plankt/fbq148.
  4. ^ a b Montagnes, D. J. S.; Lowe, C. D.; Roberts, E. C.; Breckels, M. N.; Boakes, D. E.; Davidson, K.; Keeling, P. J.; Slamovits, C. H.; Steinke, M.; Yang, Z.; Watts, P. C. (2010-10-07). "An introduction to the special issue: Oxyrrhis marina, a model organism?". Journal of Plankton Research. 33 (4): 549–554. doi:10.1093/plankt/fbq121. ISSN 0142-7873.
  5. ^ Dujardin, Félix (1841). Histoire naturelle des zoophytes: Infusoires, comprenant la physiologie et la classification de ces animaux, et la manière de les étudier à l'aide du microscope (in French). Roret.