Influence of non-thermic AC magnetic fields on spore germination in a dimorphic fungus.
The influence of weak pulsed magnetic fields of low frequencies on the germination rate of Mycotypha africana was tested. This fungus grows as a mycelium (M-culture) or in a yeast-like form (Y-culture) depending upon culture conditions. 5 h and 24 h of field application enhanced the germination rate in a Y-culture up to 2 or 3 times at low intensity levels and decreased it up to a factor 4 at the intensity level "4". M-cultures exhibited the same reaction pattern after 5 h exposition and no effect after 24 h exposition. The Y/M ratio is shifted by low field intensities towards the Y-form. The occurrence of stimulation as well as retardation by neighbouring intensities is discussed.
Wittekindt
E
E
Institut für Biophysik, Freie Universität Berlin, Germany.
Broers
D
D
Kraepelin
G
G
Lamprecht
I
I
D002118:Calcium / Q000502:physiology; D003470:Culture Media; D008280:Magnetics; D013172:Spores, Fungal / Q000502:physiology*
D003470:Culture Media; D002118:Calcium