Observation on the reversible protoplasm streaming of Physarum melleum and Physarum globuliferum
淡黄绒泡菌和全白绒泡菌原生质流向的观察

Phaneroplasmodium is assimilative stage in life cycle of Physarales. One of the conspicuous phenomenon in plasmodium is reversible streaming. However, the cause leading to reversible protoplasm streams has been not sure. In this study, the protoplasm streams in the plasmodium of Physarum melleum and P. globuliferum were observed. It was found that the reversible protoplasm stream was caused by clogging in channel of net-veins or undifferentiation channel in the margin of plasmodium. The gross afflux orientation of protoplasmic streaming was fan-shaped and induced the movement of plasmodium.