Advanced

Causes and consequences of excess resistance in cryptobiotic metazoans

Jönsson, Ingemar LU (2003) In Physiological and Biochemical Zoology 76(4). p.429-435
Abstract
Despite more than 200 yr of recognition that some microscopic metazoans survive environmental conditions far beyond those experienced in nature while in a cryptobiotic state, this phenomenon has received little attention from evolutionary biologists. The excess environmental resistance exhibited by cryptobiotic organisms cannot be viewed as an adaptation within current evolutionary biology. Rather, excess resistance may have evolved as a by-product of natural selection for tolerance to desiccation or other naturally occurring environmental agents. The combined effects of desiccation, metabolic arrest, effective stabilization of dry or frozen cells by protectant molecules, and efficient DNA repair mechanisms may have led to a protection of... (More)
Despite more than 200 yr of recognition that some microscopic metazoans survive environmental conditions far beyond those experienced in nature while in a cryptobiotic state, this phenomenon has received little attention from evolutionary biologists. The excess environmental resistance exhibited by cryptobiotic organisms cannot be viewed as an adaptation within current evolutionary biology. Rather, excess resistance may have evolved as a by-product of natural selection for tolerance to desiccation or other naturally occurring environmental agents. The combined effects of desiccation, metabolic arrest, effective stabilization of dry or frozen cells by protectant molecules, and efficient DNA repair mechanisms may have led to a protection of the organism against conditions far beyond those experienced in nature. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physiological and Biochemical Zoology
volume
76
issue
4
pages
429 - 435
publisher
University of Chicago Press
external identifiers
  • wos:000185623600001
  • scopus:0642335412
ISSN
1522-2152
language
English
LU publication?
yes
id
c04d7dd3-9d9a-4b12-b77f-36cdebd34720 (old id 147448)
alternative location
http://lup.lub.lu.se/luur?func=downloadFile&fileOId=625129
date added to LUP
2008-11-06 13:24:25
date last changed
2018-01-07 05:15:30
@article{c04d7dd3-9d9a-4b12-b77f-36cdebd34720,
  abstract     = {Despite more than 200 yr of recognition that some microscopic metazoans survive environmental conditions far beyond those experienced in nature while in a cryptobiotic state, this phenomenon has received little attention from evolutionary biologists. The excess environmental resistance exhibited by cryptobiotic organisms cannot be viewed as an adaptation within current evolutionary biology. Rather, excess resistance may have evolved as a by-product of natural selection for tolerance to desiccation or other naturally occurring environmental agents. The combined effects of desiccation, metabolic arrest, effective stabilization of dry or frozen cells by protectant molecules, and efficient DNA repair mechanisms may have led to a protection of the organism against conditions far beyond those experienced in nature.},
  author       = {Jönsson, Ingemar},
  issn         = {1522-2152},
  language     = {eng},
  number       = {4},
  pages        = {429--435},
  publisher    = {University of Chicago Press},
  series       = {Physiological and Biochemical Zoology},
  title        = {Causes and consequences of excess resistance in cryptobiotic metazoans},
  volume       = {76},
  year         = {2003},
}