| Ramazzottius | |
|---|---|
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| Light micrographs of Ramazzottius varieornatus in its active state (A) and the cryptobiotic tun state (B)1 | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Tardigrada |
| Class: | Eutardigrada |
| Order: | Parachela |
| Family: | Hypsibiidae |
| Genus: | Ramazzottius Binda and Pilato, 1987 |
| Species | |
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see text | |
Ramazzottius is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada, named after the Italian zoologist Giuseppe Ramazzotti.
Ramazzottius varieornatus (see image) is a terrestrial invertebrate that is extroardinarily tolerant of extreme conditions such as irradiation, chemicals, dehydration and high pressure.2 This tolerance is linked to the presence of the damage suppressor protein (Dsup) that binds to nucleosomes providing tolerance to DNA damage, such as that caused by ionizing radiation or hydroxyl radicals.23
Species
Ramazzottius contains the following species:4
- Ramazzottius affinis Bertolani, Guidetti & Rebecchi, 1994
- Ramazzottius agannae Dastych, 2011
- Ramazzottius andreevi Biserov, 1998
- Ramazzottius anomalus (Ramazzotti, 1962)
- Ramazzottius baumanni (Ramazzotti, 1962)
- Ramazzottius belubellus Bartels, Nelson, Kaczmarek & Michalczyk, 2011
- Ramazzottius bunikowskae Kaczmarek, Michalczyk & Diduszko, 2006
- Ramazzottius caucasicus Biserov, 1998
- Ramazzottius conifer (Mihelčič, 1938)
- Ramazzottius horningi Binda & Pilato, 1994
- Ramazzottius kretschmanni Guidetti, Cesari, Giovannini, Ebel, Förschler & Schill, 2022
- Ramazzottius libycus Pilato, D'Urso & Lisi, 2013
- Ramazzottius littoreus Fontoura, Rubal & Veiga, 2017
- Ramazzottius montivagus (Dastych, 1983)
- Ramazzottius nivalis Dastych, 2006
- Ramazzottius oberhaeuseri (Doyère, 1840)
- Ramazzottius rupeus Biserov, 1999
- Ramazzottius sabatiniae Guidetti, Massa, Bertolani, Rebecchi & Cesari, 2019
- Ramazzottius saltensis (Claps & Rossi, 1984)
- Ramazzottius semisculptus Pilato & Rebecchi, 1992
- Ramazzottius subanomalus (Biserov, 1985)
- Ramazzottius szeptycki (Dastych, 1980)
- Ramazzottius theroni Dastych, 1993
- Ramazzottius thulini (Pilato, 1970)
- Ramazzottius tribulosus Bertolani & Rebecchi, 1988
- Ramazzottius valaamis Biserov & Tumanov, 1993
- Ramazzottius varieornatus Bertolani & Kinchin, 1993
References
References
- Neves, Ricardo Cardoso; Hvidepil, Lykke K. B.; Sørensen-Hygum, Thomas L.; Stuart, Robyn M.; Møbjerg, Nadja (9 January 2020). "Thermotolerance experiments on active and desiccated states of Ramazzottius varieornatus emphasize that tardigrades are sensitive to high temperatures". Scientific Reports. 10 (1): 94. Bibcode:2020NatSR..10...94N. doi:10.1038/s41598-019-56965-z. ISSN 2045-2322. PMC 6952461. PMID 31919388.
- Ricci C, Riolo G, Marzocchi C, Brunetti J, Pini A, Cantara S (September 2021). "The Tardigrade Damage Suppressor Protein Modulates Transcription Factor and DNA Repair Genes in Human Cells Treated with Hydroxyl Radicals and UV-C". Biology. 10 (10): 970. doi:10.3390/biology10100970. PMC 8533384. PMID 34681069.
- Chavez C, Cruz-Becerra G, Fei J, Kassavetis GA, Kadonaga JT (October 2019). "The tardigrade damage suppressor protein binds to nucleosomes and protects DNA from hydroxyl radicals". eLife. 8 e47682. doi:10.7554/eLife.47682. PMC 6773438. PMID 31571581.
- Guidetti R, McInnes SJ, Kristensen RM, eds. (2026). "Ramazzottius Binda & Pilato, 1986". World List of Tardigrada. World Register of Marine Species. Retrieved 6 July 2026.
Further reading
Further reading
- Biserov, V.I. (1998). "Tardigrades of the Caucasus with a taxonomic analysis of the genus Ramazzottius (Parachela: Hypsibiidae)". Zoologischer Anzeiger. 236: 139–159.
- Biserov, V.I.; Tumanov, D.V. (1993). "Ramazzottius valaamis sp. n.(Tardigrada, Hypsibiidae), a new species of Tardigrads from Valaam Island, Karelia, Russia". Zoologičeskij žurnal. 72 (11): 35–39.
- Doyére, L.M. (1840). "Memoire sur les Tardigrades. I". Annales des Sciences Naturelles, Paris. Série 2. 14: 269–362.
- Kaczmarek Ł, Michalczyk Ł, Diduszko D (June 2006). "Ramazzottius bunikowskae, a new species of Tardigrada (Eutardigrada, Hypsibiidae) from Russia". Zootaxa. 1229 (1): 49–57. doi:10.11646/zootaxa.1229.1.4.
External links
External links