Ramazzottius Explained

Ramazzottius is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada.

Ramazzottius varieornatus (see image) is a terrestrial invertebrate that is extroardinarily tolerant of extreme conditions such as irradiation, chemicals, dehydration and high pressure.^[1] 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.^{[1] [2]}

Species

• Ramazzottius affinis Bertolani, Guidetti and Rebecchi, 1993
• Ramazzottius andreevi
• Ramazzottius anomalus Ramazzotti, 1962
• Ramazzottius baumanni Ramazzotti, 1962
• Ramazzottius bunikowskae
• Ramazzottius cataphractus Maucci, 1974
• Ramazzottius caucasicus
• Ramazzottius edmondabouti Séméria, 1993
• Ramazzottius horningi Binda and Pilato, 1995
• Ramazzottius ljudmilae
• Ramazzottius montivagus Dastych, 1983
• Ramazzottius novemcinctus Marcus, 1936
• Ramazzottius oberhaeuseri
• Ramazzottius rupeus Biserov, 1999
• Ramazzottius saltensis Claps and Rossi, 1984
• Ramazzottius semisculptus Pilato and Rebecchi, 1992
• Ramazzottius subanomalus Biserov, 1985
• Ramazzottius szeptycki Dastych, 1980
• Ramazzottius theroni Dastych, 1993
• Ramazzottius thulini Pilato, 1970
• Ramazzottius tribulosus Bertolani and Rebecchi, 1988
• Ramazzottius valaamis
• Bertolani and Kinchin, 1993

References

• V.I. . Biserov . Tardigrades of the Caucasus with a taxonomic analysis of the genus Ramazzottius (Parachela: Hypsibiidae) . Zoologischer Anzeiger . 236 . 139–159 . 1998 .
• Biserov . V.I. . Tumanov . D.V. . Ramazzottius valaamis sp. n.(Tardigrada, Hypsibiidae), a new species of Tardigrads from Valaam Island, Karelia, Russia . Zoologičeskij žurnal . 72 . 11 . 35–39 . 1993 .
• L.M. . Doyére . Memoire sur les Tardigrades. I . Annales des Sciences Naturelles, Paris . Série 2 . 14 . 269–362 . 1840 .
• Kaczmarek Ł, Michalczyk Ł, Diduszko D . Ramazzottius bunikowskae, a new species of Tardigrada (Eutardigrada, Hypsibiidae) from Russia . Zootaxa . 1229 . 1 . 49–57 . June 2006 . 10.11646/zootaxa.1229.1.4 .

Notes and References

1. Ricci C, Riolo G, Marzocchi C, Brunetti J, Pini A, Cantara S . 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 . September 2021 . 970 . 34681069 . 8533384 . 10.3390/biology10100970 . free .
2. Chavez C, Cruz-Becerra G, Fei J, Kassavetis GA, Kadonaga JT . The tardigrade damage suppressor protein binds to nucleosomes and protects DNA from hydroxyl radicals . eLife . 8 . October 2019 . 31571581 . 6773438 . 10.7554/eLife.47682 . free .