Regulation of Mitosis in Stentor coeruleus

Science  29 May 1959:
Vol. 129, Issue 3361, pp. 1483-1484
DOI: 10.1126/science.129.3361.1483


When Stentor coeruleus was cut into anterior and posterior halves, the micronuclei in the posterior half underwent mitosis about 5 to 6 hours later, as shown in stained preparations. It is suggested that the division of the micronuclei was initiated by metabolic changes which resulted from the lack of adoral membranelles.