Abstract
Aspergillus nidulans grown under standard laboratory conditions does not show circadian rhythmic growth. The presence of a circadian clock was demonstrated in A. nidulans at the level of gene expression (Greene et al. 2003), but a visually observable rhythm is lacking. We recently observed a remarkable rhythmic growth pattern in the formation of conidiospores and ascospores in a fludioxonil resistant mutant of A. nidulans (fldA1) grown in a dark incubator. This is reminiscent of a circadian rhythm. We found however that our observed rhythm is induced by light (leaking into the ‘dark’ incubator) and is not self-sustainable. In absolute darkness or constant light the rhythm is lost; therefore, we conclude that the rhythm is not a true intrinsic circadian rhythm.
How to Cite:
Schoustra, S. E., Slakhorst, M., Hoekstra, R. F. & Debets, A. J., (2006) “Non-circadian light inducible rhythm in Aspergillus nidulans”, Fungal Genetics Reports 53(1), 23-25. doi: https://doi.org/10.4148/1941-4765.1110
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