Chorisodontium aciphyllum

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Chorisodontium aciphyllum
Scientific classification Edit this classification
Kingdom: Plantae
Division: Bryophyta
Class: Bryopsida
Subclass: Dicranidae
Order: Dicranales
Family: Dicranaceae
Genus: Chorisodontium
Species:
C. aciphyllum
Binomial name
Chorisodontium aciphyllum
Brotherus (1924)

Chorisodontium aciphyllum is a species of

metabolic
state, extending life indefinitely.

Description

Chorisodontium aciphyllum grows in banks along the Antarctic coast in the Drake Passage region. It has also been found in Argentina, Chile, Antarctica, New Zealand, and

South Georgia.[1] As the moss banks grow taller, the layers more than an inch below the surface turn brown from lack of sun exposure and eventually become part of the permafrost.[2] The mounds of moss can grow to be more than 9 feet (2.7 m) tall.[3]

Chorisodontium aciphyllum was first described by

William M. Wilson in 1844 as Dicranum aciphyllum in the London Journal of Botany.[4] Viktor Ferdinand Brotherus reclassified the species into its current genus in 1924.[5]

Cryptobiosis

In 2014,

radio-carbon dating techniques.[3] The findings were published in Current Biology.[7]

Previously, it was believed that a multi-cellular organism could only survive in a non-metabolic state of "suspended animation" known as cryptobiosis for a few decades.[3] Cases of bacteria and other single-celled microbes were previously known.[2] No moss had previously been documented to survive more than 20 years frozen, but moss stems frozen under Teardrop Glacier on Ellesmere Island for 400 years had spawned new growth when ground up and placed in petri dishes.[2][6] Using complex cloning techniques, 31,000-year-old seeds of Silene stenophylla were revived in 2012.[2]

References

  1. ^ "Chorisodontium aciphyllum". Encyclopedia of Life. Retrieved February 2, 2024.
  2. ^ a b c d Zimmer, Carl (March 17, 2014). "A Growth Spurt at 1,500 Years Old". The New York Times. Retrieved March 19, 2014.
  3. ^ a b c d e Morin, Monte (March 17, 2014). "Antarctic moss revived after 1,500-year 'deep freeze'". Los Angeles Times. Retrieved March 17, 2014.
  4. ^ Hooker, J. D.; Wilson, W. (1844). "Musci Antarctici; being Characters with brief descriptions of the new species of Mosses discovered during the voyage of H.M. Discovery Ships, Erebus and Terror, in the Southern Circumpolar Regions, together with those of Tasmania and New Zealand (ch. Dicranum aciphyllum)". London Journal of Botany. 3. London: Baillière: 541. Retrieved March 27, 2014.
  5. ^ "!Chorisodontium aciphyllum (Hook. f. & Wilson) Broth". Tropicos. Missouri Botanical Garden. Retrieved March 18, 2014.
  6. ^ a b c Frazer, Jennifer (March 17, 2014). "Ancient Moss Revived After Ages on Ice". National Geographic. Archived from the original on March 18, 2014. Retrieved March 19, 2014.
  7. PMID 24650904
    .
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