extension of cellulose synthesis to old semicells was brought about in divided cells by treatment with 3 mm colchicine , 28 mum vinblastine , 50 mum isopropyl-n-phenylcarbamate or 1 mum isopropyl-n ( 3-chlorophenyl ) carbamate , indicating that microtubules are involved in the limitation of cellulose synthesis to the new semicells .
C0007634
cells
C0026046
microtubules