Effects of colchicine on the green alga sphaeroplea annulina (Roth) Ag

Abstract

Colchicine has been successfully employed for the first time in inducing the formation of polyploid nuclei in the green alga Sphaeroplea annulina (Roth) Ag. The haploid chromosome number was determined to be 16. Greatly deficient, aneuploid and polyploid nuclei were found to be capable of survival and repeated mitoses in the cytoplasm of the coenocyte. © 1957, Japan Mendel Society, International Society of Cytology. All rights reserved.