Biology:Nebela

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Short description: Genus of testate amoebae


Nebela
Temporal range: Pleistocene–Recent 2.58–0 Ma[1]
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Nebela flabellulum SEM.png
Nebela flabellulum
Scientific classification e
Domain: Eukaryota
Phylum: Amoebozoa
Class: Tubulinea
Order: Arcellinida
Family: Hyalospheniidae
Genus: Nebela
Leidy 1874
Type species
Nebela collaris
(Ehrenberg 1848) Leidy 1879
Species

13 species

Synonyms
  • Difflugia (Reticella) Ehrenberg 1872
  • Cyphoderiopsis Playfair 1918
  • Argynnia Jung 1942 nom. nud.
  • Leidyella Jung 1942 nom. nud.
  • Umbonaria Jung 1942 nom. nud.
  • Pterygia Jung 1942 nom. nud.
  • Schaudinnia Jung 1942 nom. nud.
  • Deflandria Jung 1942 nom. nud.

Nebela is a diverse genus of testate amoebae of cosmopolitan distribution, belonging to the family Hyalospheniidae.[1] They are "prey agglutinated" or "kleptosquamic" organisms, meaning they take the inorganic plates from their prey to construct their test.[2]

Morphology

Members of this genus have a thin, transparent, pseudochitinous, flattened test that can be ovate, pyriform or elongate, with a length of around 180 microns. The surface of the test has numerous oval or circular scales of variable size, or in rare occasions rectangular or rod-like scales. The protoplasm is granular and colorless but can contain food vacuoles that show color. They have a single nucleus and a variable number of pseudopodia that are blunt in shape. The cell body is attached to the test's interior by strands of ectoplasm.[1]

Classification

Nebela originally belonged to the family Nebelidae, but phylogenetic analyses showed that the genus was paraphyletic and the genera Hyalosphenia and Quadrulella, which belong to Hyalospheniidae, branch within Nebela. Accordingly, the family Nebelidae was synonymised with Hyalospheniidae.[3]

Species

There are at least 13 remaining species in the genus:

  • Nebela acolla Cash 1909[4]
  • Nebela aliciae Mitchell & Lara 2013[4]
  • Nebela barbata Leidy 1874[5]
  • Nebela carinatella Beyens & Chardez 1982[6]
  • Nebela collaris (Ehrenberg 1848) Leidy 1879 sensu Kosakyan & Gomaa 2013 (=Difflugia collaris Ehrenberg 1848; =D. cancellata Ehrenberg 1848; =D. reticulata Ehrenberg 1848; =D. carpio Ehrenberg 1854; =D. laxa Ehrenberg 1871; =D. cellulifera Ehrenberg 1874; =N. numata Leidy 1874; =N. bohemica Taranek 1882; =N. sphagnophila (Steinecke) Van Oye 1933; =N. tincta var. major Deflandre 1936; =N. tincta f. stenostoma Jung 1936)[4]
  • Nebela cylindrica Bonnet, 1979[7][8]
  • Nebela equicalceus Leidy 1874[9]
  • Nebela flabellulum Leidy 1874
  • Nebela guttata Kosakyan & Lara 2013[4]
  • Nebela pechorensis Kosakyan & Lara 2013[4]
  • Nebela rotunda Penard 1890[4]
  • Nebela tenella Penard 1893
  • Nebela tincta (Leidy 1879) Awerintzew 1906 sensu Kosakyan & Lara 2013 (=Hyalosphenia tincta Leidy 1879; =N. bursella Vejdovsky 1882; =N. parvula Cash & Hopkinson 1909; =N. minor Penard 1902)[4]

Former species

The paraphyly of Nebela is slowly being resolved by transferring species from Nebela to other genera through phylogenetic analyses.[3] The following species were previously considered Nebela but have been moved accordingly:

  • Alabasta Duckert, Blandenier, Kosakyan & Singer 2018[10]
    • Alabasta kivuense (Gauthier-Lievre & Thomas 1961) Duckert, Blandenier, Kosakyan & Singer 2018 (=N. kivuense Gauthier-Lievre & Thomas 1961[8])
    • Alabasta longicollis (Penard 1890) Duckert, Blandenier, Kosakyan & Singer 2018 (=N. longicollis Penard 1890)
    • Alabasta militaris (Penard 1890) Duckert, Blandenier, Kosakyan & Singer 2018 (=N. militaris Penard 1890;[11] =N. bursella Taranek 1881; =N. americana var. bryophila Van Oye 1933)
  • Cornutheca Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[12]
    • Cornutheca ansata (Leidy 1879) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. ansata Leidy 1879)
    • Cornutheca saccifera (Wailes 1913) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. saccifera Wailes 1913)
    • Cornutheca hippocrepis (=N. hippocrepis)
    • Cornutheca jiuhuensis[13] (=N. jiuhuensis Qin, Mitchell & Lara 2016[9])
  • Gibbocarina Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[12]
    • Gibbocarina galeata (Penard 1890) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. galeata Penard 1890)
    • Gibbocarina gracilis (Penard 1910) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. gracilis Penard 1890)
  • Longinebela Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[12]
    • Longinebela golemanskyi (Todorov 2010) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. golemanskyi Todorov 2010[14])
    • Longinebela meisterfeldi (Heger & Mitchell 2012) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[12] (=N. meisterfeldi Heger & Mitchell 2012)[3]
    • Longinebela penardiana (Deflandre 1936) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. penardiana Deflandre 1936)
    • Longinebela speciosa (Deflandre 1936) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. speciosa Deflandre 1936)
    • Longinebela tubulosa (Penard 1902) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. tubulosa Penard 1902)
  • Netzelia Ogden 1979
    • Netzelia tuberculata (Wallich 1864) Netzel 1983[15] (=N. tuberculata (Wallich 1864) Owen III & Jones 1976[16])
  • Padaungiella Lara & Todorov 2012[3]
    • Padaungiella lageniformis (Penard 1890) Lara & Todorov 2012 (=N. lageniformis Penard 1890)
    • Padaungiella wailesi (Deflandre 1936) Lara & Todorov 2012 (=N. wailesi Deflandre 1936)
    • Padaungiella wetekampi (Jung 1942) Lara & Todorov 2012 (=N. wetekampi Jung 1942)
    • Padaungiella tubulata (Brown 1911) Lara & Todorov 2012 (=N. tubulata Brown 1911)
    • Padaungiella nebeloides (Gauthier-Lièvre & Thomas 1958) Lara & Todorov 2012 (=N. nebeloides (Gauthier-Lièvre & Thomas 1958) Todorov, Golemansky & Meisterfeld 2010[17])
  • Planocarina Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[12]
    • Planocarina carinata (Archer 1867) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. carinata (Archer 1867) Leidy 1879)
    • Planocarina marginata (Penard 1902) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. marginata Penard 1902)
    • Planocarina maxima (Awerintzew 1907) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. maxima Awerintzew 1907)
    • Planocarina spumosa (Awerintzew 1907) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=N. spumosa Awerintzew 1907)
  • Physochila Jung 1942
    • Physochila griseola (Wailes & Penard 1911) (=N. griseola Wailes & Penard 1911)

References

  1. ↑ 1.0 1.1 1.2 Loeblich, Alfred Richard; Tappan, Helen (1964). Treatise on Invertebrate Paleontology, Part C: Protista 2, Sarcodina, Chiefly "Thecamoebians" and Foraminiferida. 1. The Geological Society of America & The University of Kansas Press. ISBN 978-0813730035. 
  2. ↑ González-Miguéns, Rubén; Todorov, Milcho; Blandenier, Quentin; Duckert, Clément; Porfirio-Sousa, Alfredo L.; Ribeiro, Giulia M.; Ramos, Diana; Lahr, Daniel J.G. et al. (2022). "Deconstructing Difflugia: The tangled evolution of lobose testate amoebae shells (Amoebozoa: Arcellinida) illustrates the importance of convergent evolution in protist phylogeny". Molecular Phylogenetics and Evolution 175 (107557): 107557. doi:10.1016/j.ympev.2022.107557. ISSN 1055-7903. PMID 35777650. 
  3. ↑ 3.0 3.1 3.2 3.3 "COI Barcoding of Nebelid Testate Amoebae (Amoebozoa: Arcellinida): Extensive Cryptic Diversity and Redefinition of the Hyalospheniidae Schultze". Protist 163 (3): 415–434. 2012. doi:10.1016/j.protis.2011.10.003. ISSN 1434-4610. PMID 22130576. https://www.sciencedirect.com/science/article/pii/S143446101100099X. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 "Using DNA-barcoding for sorting out protist species complexes: A case study of the Nebela tincta–collaris–bohemica group (Amoebozoa; Arcellinida, Hyalospheniidae)". European Journal of Protistology 49 (2): 222–237. 2013. doi:10.1016/j.ejop.2012.08.006. ISSN 0932-4739. PMID 23092639. https://www.sciencedirect.com/science/article/pii/S0932473912000624. 
  5. ↑ "First records of contemporary testate amoeba assemblages from the Kamchatka Peninsula, Russia and potential for palaeoenvironmental reconstruction". Boreas 50 (4): 998–1010. 10 August 2020. doi:10.1111/bor.12469. 
  6. ↑ "Cryptodifflugia angustastoma et Nebela carinatella, nouveaux Thécamoebiens des tourbières dans la Campine beige". Archiv für Protistenkunde 126 (2): 169–172. 1982. doi:10.1016/S0003-9365(82)80047-X. ISSN 0003-9365. 
  7. ↑ Bonnet L (1979). "Nouveaux thécamoebiens du sol X". Bulletin de la Societe d'Histoire Naturelle de Toulouse 115: 106–118. 
  8. ↑ 8.0 8.1 "Nebela kivuense Gauthier-Lievre et Thomas, 1961 (Amoebozoa, Arcellinida), Missing for a Half-century; Found 11,500 km from "home"". Acta Protozoologica 54 (4): 283–288. 2015. doi:10.4467/16890027AP.15.023.3537. ISSN 0065-1583. 
  9. ↑ 9.0 9.1 "Nebela jiuhuensis nov. sp. (Amoebozoa; Arcellinida; Hyalospheniidae): A New Member of the Nebela saccifera - equicalceus - ansata Group Described from Sphagnum Peatlands in South-Central China". The Journal of Eukaryotic Microbiology 63 (5): 558–566. 2016. doi:10.1111/jeu.12300. PMID 27593700. 
  10. ↑ "En garde! Redefinition of Nebela militaris (Arcellinida, Hyalospheniidae) and erection of Alabasta gen. nov.". Eur J Protistol 66: 156–165. 2018. doi:10.1016/j.ejop.2018.08.005. PMID 30366198. http://doc.rero.ch/record/323497/files/Duckert_C.-En_garde-20181136.pdf. 
  11. ↑ "Case 3782 – Nebela militaris Penard, 1890 (Arcellinida, Hyalospheniidae): proposed conservation of the specific name by giving it precedence over Nebela bursella Taranek, 1881". The Bulletin of Zoological Nomenclature 77 (1): 22–28. 30 April 2020. doi:10.21805/bzn.v77.a007. 
  12. ↑ 12.0 12.1 12.2 12.3 12.4 "Phylogenetic reconstruction based on COI reshuffles the taxonomy of hyalosphenid shelled (testate) amoebae and reveals the convoluted evolution of shell plate shapes". Cladistics 32 (6): 606–623. 2016. doi:10.1111/cla.12167. PMID 34727671. 
  13. ↑ "How does Sphagnum growing affect testate Amoeba communities and corresponding protozoic Si pools? Results from field analyses in SW China". Microbial Ecology 82 (2): 459–469. August 2021. doi:10.1007/s00248-020-01668-6. PMID 33442762. 
  14. ↑ Todorov, Milcho (2010). "Nebela golemanskyi sp. nov., a New Sphagnicolous Testate Amoeba from Bulgaria (Amoebozoa: Arcellinida, Nebelidae)". Acta Protozoologica 49 (1). https://bibliotekanauki.pl/articles/763589. 
  15. ↑ "Checklist of Sphagnum-dwelling testate amoebae in Bulgaria". Biodivers Data J 6 (e25295): e25295. 22 May 2018. doi:10.3897/BDJ.6.e25295. PMID 29861653. 
  16. ↑ Owen III, Goronwy; Jones, E. E. (1976). "Nebela tuberculata comb. nov. (Arcellinida), its History and Ultrastructure". The Journal of Eukaryotic Microbiology 23 (4): 485–487. doi:10.1111/j.1550-7408.1976.tb03819.x. 
  17. ↑ "Is Difflugia nebeloides (Amoebozoa: Arcellinida) really a Difflugia? Re-description and new combination". Acta Zoologica Bulgarica 62 (1): 13–20. 2010. https://www.researchgate.net/publication/259479724. 

Wikidata ☰ Q11790411 entry



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