Structure, synthesis and orientation of microfibrils. VII. Microtubule reassembly in vivo after cold treatment in Oocystis and its relevance to microfibril orientation.

A large reduction in cortical microtubule number occurs upon maintaining cultures of O. solitaria at 1 degrees C. Returning the cultures to 25 degrees C results in a rapid (15 min) recovery of the microtubule population. This feature is discussed in terms of the structural and synthetic requirements of a microfibril orientation model.