Turritopsis dohrnii: Difference between revisions

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<i>Turritopsis dohrnii</i> (previously classified as <i>Turritopsis nutricula</i>),<ref name=Schuchert> Schuchert P. Revision of the European athecate hydroids and their medusae (Hydrozoa, Cnidaria): families Oceanidae and Pachycordylidae. Revue suisse de Zoologie. 2004 Jun 1;111(2):315-70. Available from: https://www.semanticscholar.org/paper/Revision-of-the-European-athecate-hydroids-and-and-Schuchert/e3d3dce80157e5ee98ecbe0bbe7d35eb36cbe82b?p2df
<i>Turritopsis dohrnii</i> (previously classified as <i>Turritopsis nutricula</i>),<ref name=Schuchert> Schuchert P. Revision of the European athecate hydroids and their medusae (Hydrozoa, Cnidaria): families Oceanidae and Pachycordylidae. Revue suisse de Zoologie. 2004 Jun 1;111(2):315-70. Available from: https://www.semanticscholar.org/paper/Revision-of-the-European-athecate-hydroids-and-and-Schuchert/e3d3dce80157e5ee98ecbe0bbe7d35eb36cbe82b?p2df
</ref> commonly known as the immortal jellyfish or the Benjamin Button jellyfish,<ref name=Than> Than K. "Immortal" Jellyfish Swarm World's Oceans [Internet]. National Geographic. 2009. Available from: https://www.nationalgeographic.com/animals/2009/01/immortal-jellyfish-swarm-oceans-animals/</ref> is a small species of jellyfish known for its unique ability to revert back to an earlier life stage through transdifferentiation.<ref name=Schmich> Schmich J, Kraus Y, De Vito D, Graziussi D, Boero F, Piraino S. Induction of reverse development in two marine Hydrozoans. Int J Dev Biol. 2007 Feb 1;51:45–56. Available from: https://www.researchgate.net/publication/6617831_Induction_of_reverse_development_in_two_marine_Hydrozoans</ref><ref name=Piraino2004> Piraino S, De Vito D, Schmich J, Bouillon J, Boero F. Reverse development in Cnidaria. Canadian Journal of Zoology. 2004 Nov 1;82(11):1748-54. Available from: https://www.researchgate.net/profile/Stefano_Piraino/publication/249542511_Reverse_development_in_Cnidaria/links/004635220749d81dc3000000/Reverse-development-in-Cnidaria.pdf</ref> This ontogeny reversal renders the organism virtually immortal as this process has the potential to repeat itself indefinitely, although organismal death does still occur in its natural environment.<ref name=Piraino1996> Piraino S, Boero F, Aeschbach B, Schmid V. Reversing the life cycle: medusae transforming into polyps and cell transdifferentiation in Turritopsis nutricula (Cnidaria, Hydrozoa). The Biological Bulletin. 1996 Jun 1;190(3):302-12. Available from: https://www.journals.uchicago.edu/doi/pdfplus/10.2307/1543022?casa_token=VCv_136r__UAAAAA%3ARVFGUXoAfbOsfuX2x2l8RiTdYNa4mgvDPrnVFQEo5KUbmRat544_LD8iRbOzKJjDNuSi38-gjDo7&</ref> Reverse development can be triggered by a variety of stressors including starvation, changes in temperature or salinity, physical damage, or age-related deterioration.<ref name=Piraino2004/>
</ref> commonly known as the immortal jellyfish or the Benjamin Button jellyfish,<ref name=Than> Than K. "Immortal" Jellyfish Swarm World's Oceans [Internet]. National Geographic. 2009. Available from: https://www.nationalgeographic.com/animals/2009/01/immortal-jellyfish-swarm-oceans-animals/</ref> is a small species of jellyfish known for its unique ability to revert back to an earlier life stage through transdifferentiation.<ref name=Schmich> Schmich J, Kraus Y, De Vito D, Graziussi D, Boero F, Piraino S. Induction of reverse development in two marine Hydrozoans. Int J Dev Biol. 2007 Feb 1;51:45–56. Available from: https://www.researchgate.net/publication/6617831_Induction_of_reverse_development_in_two_marine_Hydrozoans</ref><ref name=Piraino2004> Piraino S, De Vito D, Schmich J, Bouillon J, Boero F. Reverse development in Cnidaria. Canadian Journal of Zoology. 2004 Nov 1;82(11):1748-54. Available from: https://www.researchgate.net/profile/Stefano_Piraino/publication/249542511_Reverse_development_in_Cnidaria/links/004635220749d81dc3000000/Reverse-development-in-Cnidaria.pdf</ref> This ontogeny reversal renders the organism virtually immortal as this process has the potential to repeat itself indefinitely, although organismal death does still occur in its natural environment.<ref name=Piraino1996> Piraino S, Boero F, Aeschbach B, Schmid V. Reversing the life cycle: medusae transforming into polyps and cell transdifferentiation in Turritopsis nutricula (Cnidaria, Hydrozoa). The Biological Bulletin. 1996 Jun 1;190(3):302-12. Available from: https://www.journals.uchicago.edu/doi/pdfplus/10.2307/1543022?casa_token=VCv_136r__UAAAAA%3ARVFGUXoAfbOsfuX2x2l8RiTdYNa4mgvDPrnVFQEo5KUbmRat544_LD8iRbOzKJjDNuSi38-gjDo7&</ref> Reverse development can be triggered by a variety of stressors including starvation, changes in temperature or salinity, physical damage, or age-related deterioration.<ref name=Piraino2004/>
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Although a rare ability, reverse development has been reported in several other Cnidaria species. Some of these include <i>Laodicea undulata</i>,<ref name=DeVito> De Vito D, Piraino S, Schmich J, Bouillon J, Boero F. Evidence of reverse development in Leptomedusae (Cnidaria, Hydrozoa): the case of Laodicea undulata (Forbes and Goodsir 1851). Marine Biology. 2006 May 1;149(2):339-46. Available from: https://link.springer.com/article/10.1007%2Fs00227-005-0182-3</ref> <i>Aurelia</i> sp.,<ref name=He> He J, Zheng L, Zhang W, Lin Y. Life cycle reversal in Aurelia sp. 1 (Cnidaria, Scyphozoa). PloS one. 2015 Dec 21;10(12):e0145314. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4687044/</ref> <i>Hydractinia carnea</i>,<ref name=Schmich/> <i>Podocoryne carnea</i>, <i>Eleutheria dichotoma</i>, <i>Cladonema</i> sp. and <i>Cladonema uchidai</i>, and <i>Perarella schneideri</i>.<ref name=Piraino1996/> However, these species can only undergo reverse development during the early stages of medusa bulb development. What makes <i>Turritopsis dohrnii</i> unique is its ability to revert after sexual maturation.<ref name=Piraino1996/>
Although a rare ability, reverse development has been reported in several other Cnidaria species. Some of these include <i>Laodicea undulata</i>,<ref name=DeVito> De Vito D, Piraino S, Schmich J, Bouillon J, Boero F. Evidence of reverse development in Leptomedusae (Cnidaria, Hydrozoa): the case of Laodicea undulata (Forbes and Goodsir 1851). Marine Biology. 2006 May 1;149(2):339-46. Available from: https://link.springer.com/article/10.1007%2Fs00227-005-0182-3</ref> <i>Aurelia</i> sp.,<ref name=He> He J, Zheng L, Zhang W, Lin Y. Life cycle reversal in Aurelia sp. 1 (Cnidaria, Scyphozoa). PloS one. 2015 Dec 21;10(12):e0145314. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4687044/</ref> <i>Hydractinia carnea</i>,<ref name=Schmich/> <i>Podocoryne carnea</i>, <i>Eleutheria dichotoma</i>, <i>Cladonema</i> sp. and <i>Cladonema uchidai</i>, and <i>Perarella schneideri</i>.<ref name=Piraino1996/> However, these species can only undergo reverse development during the early stages of medusa bulb development. What makes <i>Turritopsis dohrnii</i> unique is its ability to revert after sexual maturation.<ref name=Piraino1996/>


Revision as of 07:11, 8 December 2020

Introduction

Figure 1: Turritopsis dohrnii in its mature medusa stage. Photo credits: Takashi Murai, https://www.nytimes.com/2012/12/02/magazine/can-a-jellyfish-unlock-the-secret-of-immortality.html?src=me&ref=general.

Turritopsis dohrnii (previously classified as Turritopsis nutricula),[1] commonly known as the immortal jellyfish or the Benjamin Button jellyfish,[2] is a small species of jellyfish known for its unique ability to revert back to an earlier life stage through transdifferentiation.[3][4] This ontogeny reversal renders the organism virtually immortal as this process has the potential to repeat itself indefinitely, although organismal death does still occur in its natural environment.[5] Reverse development can be triggered by a variety of stressors including starvation, changes in temperature or salinity, physical damage, or age-related deterioration.[4]

Although a rare ability, reverse development has been reported in several other Cnidaria species. Some of these include Laodicea undulata,[6] Aurelia sp.,[7] Hydractinia carnea,[3] Podocoryne carnea, Eleutheria dichotoma, Cladonema sp. and Cladonema uchidai, and Perarella schneideri.[5] However, these species can only undergo reverse development during the early stages of medusa bulb development. What makes Turritopsis dohrnii unique is its ability to revert after sexual maturation.[5]






Life Cycle

Figure 2: Life cycle pathways of Turritopsis dohrnii. Photo credits: https://thebiologist.rsb.org.uk/biologist/158-biologist/features/1510-everlasting-life-the-immortal-jellyfish.

Include some current research, with at least one image.


Genetics

Microbial Relationships

Include some current research, with a second image.
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Medical Potential

Conclusion

Overall text length should be at least 1,000 words (before counting references), with at least 2 images. Include at least 5 references under Reference section.


References

  1. ↑ Schuchert P. Revision of the European athecate hydroids and their medusae (Hydrozoa, Cnidaria): families Oceanidae and Pachycordylidae. Revue suisse de Zoologie. 2004 Jun 1;111(2):315-70. Available from: https://www.semanticscholar.org/paper/Revision-of-the-European-athecate-hydroids-and-and-Schuchert/e3d3dce80157e5ee98ecbe0bbe7d35eb36cbe82b?p2df
  2. ↑ Than K. "Immortal" Jellyfish Swarm World's Oceans [Internet]. National Geographic. 2009. Available from: https://www.nationalgeographic.com/animals/2009/01/immortal-jellyfish-swarm-oceans-animals/
  3. ↑ 3.0 3.1 Schmich J, Kraus Y, De Vito D, Graziussi D, Boero F, Piraino S. Induction of reverse development in two marine Hydrozoans. Int J Dev Biol. 2007 Feb 1;51:45–56. Available from: https://www.researchgate.net/publication/6617831_Induction_of_reverse_development_in_two_marine_Hydrozoans
  4. ↑ 4.0 4.1 Piraino S, De Vito D, Schmich J, Bouillon J, Boero F. Reverse development in Cnidaria. Canadian Journal of Zoology. 2004 Nov 1;82(11):1748-54. Available from: https://www.researchgate.net/profile/Stefano_Piraino/publication/249542511_Reverse_development_in_Cnidaria/links/004635220749d81dc3000000/Reverse-development-in-Cnidaria.pdf
  5. ↑ 5.0 5.1 5.2 Piraino S, Boero F, Aeschbach B, Schmid V. Reversing the life cycle: medusae transforming into polyps and cell transdifferentiation in Turritopsis nutricula (Cnidaria, Hydrozoa). The Biological Bulletin. 1996 Jun 1;190(3):302-12. Available from: https://www.journals.uchicago.edu/doi/pdfplus/10.2307/1543022?casa_token=VCv_136r__UAAAAA%3ARVFGUXoAfbOsfuX2x2l8RiTdYNa4mgvDPrnVFQEo5KUbmRat544_LD8iRbOzKJjDNuSi38-gjDo7&
  6. ↑ De Vito D, Piraino S, Schmich J, Bouillon J, Boero F. Evidence of reverse development in Leptomedusae (Cnidaria, Hydrozoa): the case of Laodicea undulata (Forbes and Goodsir 1851). Marine Biology. 2006 May 1;149(2):339-46. Available from: https://link.springer.com/article/10.1007%2Fs00227-005-0182-3
  7. ↑ He J, Zheng L, Zhang W, Lin Y. Life cycle reversal in Aurelia sp. 1 (Cnidaria, Scyphozoa). PloS one. 2015 Dec 21;10(12):e0145314. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4687044/


Edited by [Author Name], student of Joan Slonczewski for BIOL 116 Information in Living Systems, 2020, Kenyon College.

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