ISSN:
1615-6102
Keywords:
NAD(P)H
;
Oscillation
;
UV irradiation
;
Physarum
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary ThePhysarum plasmodium shows rhythmic contractile activities with a period of a few min. Phases of the oscillation in the plasmodium migrating unindirectionally agreed sideways throughout at the frontal part. So, time course of an intracellular chemical component was determined by analyzing small pieces cut off successively from the frontal part of the large plasmodium. Intracellular NAD(P)H concentration oscillated with the same period as the rhythmic contraction but with a different phase advancing about 1/3 of the period. UV irradiation suppressed the rhythmic contraction without affecting the rhythmic variation of NAD(P)H. Thus, the NAD(P)H oscillator works independently of the rhythmic contractile system, but seems entraining with each other.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01282284
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