Abstract: The coleoptile of rice Zhenshan 97A (male-sterile cytoplasm,CMS)and 97B (normal cytoplasm, N) were used as experimential materials. Their protoplasmic viscosity was detected. The results showed that rice Zhenshan 97A’s cytoplasmic viscosity was inferior to that of 97B. One of Zhenshan 97 maintainer liner (N) and it’s CMS-T?D?G?W (the same kind of gene) were also detected. The order of five protoplasmic viscosity was N>W>G>D>T. When the coleoptila were treated by Cytochalasin (CB) or Colchicine,Which were inhibitors of microfilaments and mi-crotubules, the viscosity was both decreased obviously. The quantity of CB or Colchicine needed to produce the same degree of displacement of the cell chloroplasts was N>W>G>D>T. These re-sults suggested that the protoplasmic viscosity was related to the cytoskeleton. We deduced that the differential protoplasmic viscosity maybe involved in the cytoskelental quantity, distribution and their genes’speciality.

Key words: Viscosity, Microfilament, Microtubule, Cytoskeleton, Male-sterile cytoplasmic, CB, Colchicine

CLC Number: 

• S511