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Family of heterotrophic flagellates, in the group Hemimastigophora
Spironematellidae (previously known as Spironemidae)
[1] is a
family of
heterotrophic
flagellates , in the group
Hemimastigophora . They vary in size and shape from the
ellipsoid
Hemimastix amphikineta (14 × 7 μm) to the
vermiform
Spironematella terricola (43 × 3 μm), and are united by the possession of two rows of
cilia , called
kineties .
[2]
Phylogenomic analysis shows that Hemimastigophora are a distinct and ancient lineage of
eukaryotic organisms, forming a possible sister
clade to the supergroup
Diaphoretickes .
[3]
[4]
Classification
The classification of Spironematellidae, as of 2022:
[1]
Spironematella multiciliata
References
^
a
b
c Shɨshkin, Yegor (2022). "Spironematella terricola comb. n. and Spironematella goodeyi comb. n. (Hemimastigida = Hemimastigea = Hemimastigophora) for Spironema terricola and Spironema goodeyi with diagnoses of the genus and family Spironematellidae amended". Zootaxa . 5128 (2): 295–297.
doi :
10.11646/zootaxa.5128.2.8 .
PMID
36101172 .
S2CID
252220401 .
^ Ilse Foissner & Wilhelm Foissner (1993). "Revision of the family Spironemidae Doflein (Protista, Hemimastigophora), with description of two new species, Spironematella terricola n. sp. and Stereonema geiseri n. g., n. sp".
Journal of Eukaryotic Microbiology . 40 (4): 422–438.
doi :
10.1111/j.1550-7408.1993.tb04936.x .
S2CID
85124745 .
^
a
b Lax, Gordon; Eglit, Yana; Eme, Laura; Bertrand, Erin M.; Roger, Andrew J.; Simpson, Alastair G. B. (14 November 2018). "Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes". Nature . 564 (7736): 410–414.
Bibcode :
2018Natur.564..410L .
doi :
10.1038/s41586-018-0708-8 .
ISSN
0028-0836 .
PMID
30429611 .
S2CID
205570993 .
^ Chung, Emily (15 November 2018).
"Rare microbes lead scientists to discover new branch on the tree of life" . CBC . CBC News.
Archived from the original on 17 November 2018. Retrieved 17 November 2018 .