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  • desiccation  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Desiccation of Panagrolaimus rigidus (Nematoda): survival, reproduction and the influence on the internal clock (1997)
    Springer
    Hydrobiologia 347 (1997), S. 1-13 
    Details
    ISSN: 1573-5117
    Keywords: nematode ; desiccation ; life cycle ; anhydrobiosis ; fecundity ; recovery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Following the life-table experimental schedule, cohorts of aparthenogenetic strain of the free-living nematode Panagrolaimus rigidus were desiccated for six days at theages of4, 8, 12, and 19 d (age effect) and cohorts aged 8 d weredried for15, 20, 40, and 60 days (time effect) to determine theirability torecover and to reproduce.Nematode age had poor effect on recovery after 6 days ofdesiccation until the mean longevity of the nematode (19 daysinhydrated medium) is approached, while increasing times ofdesiccation (from 6 to 60 d) remarkably decreased capacity forrecovery (from 80 to 8%). Anhydrobiosis experienced atdifferentages or for different durations modified the timing of thenematodelife cycle events, but not the pattern of age-specificfecunditynor survival curves. The age-specific fecundity is largelyretainedfollowing anhydrobiosis, but when matched to that of thenematodeskept hydrated (controls), it declines for increasing durationsofdesiccation. Anhydrobiosis appears to cause a reset of theanimal‘sinternal clock, that is dependent on the duration ofdesiccation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002979522816
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  • 2
    Electronic Resource
    Electronic Resource
    Anhydrobiotic capabilities of bdelloid rotifers (1998)
    Springer
    Hydrobiologia 287-388 (1998), S. 321-326 
    Details
    ISSN: 1573-5117
    Keywords: bdelloid rotifers ; anhydrobiosis ; desiccation ; recovery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract To test if anhydrobiotic capability is apomorphic to class Bdelloidea, I focused on the recovery from desiccation of 15 bdelloid species. The species belonged to 6 genera, represented the four bdelloid families, and were collected from water and moss environments. Eggs or embryos, prereproductive and reproductive specimens of most species were desiccated and kept dry for 7 days. The highest recovery rates were obtained rehydrating adult bdelloids of moss species, while three aquatic species did not survive anhydrobiosis. Species from aquatic and moss habitats differed in their capacity to enter anhydrobiosis and to recover successfully. This difference may be related to the different desiccation frequencies of the two habitats, although aquatic species were able to survive desiccation. It seems likely that anhydrobiotic capacity is a feature common to all bdelloids, and that was subsequently lost by some species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017086425934
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Anhydrobiotic capabilities of bdelloid rotifers (1998)
    Springer
    Hydrobiologia 387-388 (1998), S. 321-326 
    Details
    ISSN: 1573-5117
    Keywords: bdelloid rotifers ; anhydrobiosis ; desiccation ; recovery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract To test if anhydrobiotic capability is apomorphic to class Bdelloidea, I focused on the recovery from desiccation of 15 bdelloid species. The species belonged to 6 genera, represented the four bdelloid families, and were collected from water and moss environments. Eggs or embryos, prereproductive and reproductive specimens of most species were desiccated and kept dry for 7 days. The highest recovery rates were obtained rehydrating adult bdelloids of moss species, while three aquatic species did not survive anhydrobiosis. Species from aquatic and moss habitats differed in their capacity to enter anhydrobiosis and to recover successfully. This difference may be related to the different desiccation frequencies of the two habitats, although aquatic species were able to survive desiccation. It seems likely that anhydrobiotic capacity is a feature common to all bdelloids, and that was subsequently lost by some species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017086425934
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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