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  • Brassicaceae  (1)
  • Chronobiology  (1)
  • Springer  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Somatic embryogenesis and plant regeneration from stem explants of Moricandia arvensis (1997)
    Springer
    Plant cell reports 17 (1997), S. 27-31 
    Details
    ISSN: 1432-203X
    Keywords: Key wordsMoricandia arvensis ; Brassicaceae ; C3-C4 intermediate ; Stem explants ; Somatic embryogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Efficient and reproducible plant regeneration has been established from stem internode explants of Moricandia arvensis, a crucifer of special interest due to its C3-C4 intermediate photosynthetic activity. Somatic embryogenesis was induced in one-third of explants cultured on Murashige and Skoog based medium containing 9 mm 2,4-dichlorophenoxyacetic acid. High frequencies of plant regeneration (〉90%) resulted when somatic embryos were germinated on medium lacking growth regulators. Regenerated plants were diploid, fertile and morphologically similar to seed-derived plants of M. arvensis. This is the first report of somatic embryogenesis in M. arvensis. This plant regeneration system should facilitate gene identification and localisation studies of C3-C4 physiology by insertional mutagenesis, a prerequisite for the isolation and transfer of genes involved in C3-C4 metabolism from Moricandia to cultivated brassicas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050346
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  • 2
    Electronic Resource
    Electronic Resource
    Absence of a tidal component in the diel pattern of locomotory activity of sea catfish,Arius felis (1985)
    Springer
    Environmental biology of fishes 12 (1985), S. 69-73 
    Details
    ISSN: 1573-5133
    Keywords: Behavior ; Marine fish ; Marine ecology ; Estuarine biology ; Chronobiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Synopsis Sea catfish, tested individually for 3-day periods in an automated data acquisition system, displayed a nocturnal pattern of locomotor activity with 62% of the activity occurring during scotophase. In addition, there were two relative maxima of activity at 0700–0900 and 1300–1500 C.S.T. This diel pattern of activity could not be correlated with tidal phenomena in the fish's natural environment and is virtually identical to that exhibited by several freshwater catfish species. Thus, even though sea catfish are a primarily estuarine fish and subject to daily tidal fluctuations, tidal rhythmicity is apparently not used as a cue for diel activity patterns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00007712
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    Paper (German National Licenses)
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