Abstract: That cytoskeleton inhibitors colchicine and cytochalasin B were used to treat the coleoptile of maize homokaryotic heteroplasmon could make the viscosity of the cytoplasm decrease.It was found that cytoplasmic viscosity was closely related to cytoskeleton composed of microtubule and microfilament.Four kinds of cytoplasmic viscosity of homokaryotic heteroplasmon were arranged to be N>S>C>T in big and small order.In the same conditions,concentrition of inhibitor which were used to reduce the viscosity to the same level was also N>S>C>T,indicating that the bigger the viscosity was, the lighter the cytoskeleton was affected by inhibitor.The reason of different cytoplasmic viscosity could be correlated with the specific characteristics of cytoskeleton.

Key words: Coleoptile, Viscosity, Microtubule(MT), Microfilament(MF), Cytoskeleton, Cytoplasmic male sterility (CMS)

CLC Number: 

• S513