Ref ID : 4070
Noel De Terra; Cortical Control over the Direction of Macronuclear Elongation in the Heterotrich Ciliate Stentor coeruleus. J.Protozool. 30(2):215-217, 1983
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Earlier experimental work involving macronuclear implants in Stentor coeruleus has shown that the cytoplasmic cortex of the nuclear site 1) attracts the macronucleus and 2) holds it in the place during interphase. Now experiments indicate macronuclei transferred with overlying cortex elongate in the direction of the transferred cortical pigment stripes, whether or not the transferred stripes realign in the direction of the host stentor's stripes. Therefore the third function of the cortex is to determine the direction of elongation and thus assure that both daughter cells at division receive part of the macronucleus.