Paramecium Protozoans, Lm
by Perennou Nuridsany
Title
Paramecium Protozoans, Lm
Artist
Perennou Nuridsany
Medium
Photograph - Photograph
Description
Light micrograph of Paramecium protozoans around an air bubble (left). Most are paired and undergoing conjugation, a type of sexual reproduction. The ciliates possess two different types of nucleus; a small diploid micronucleus and a larger polyploid macronucleus. During conjugation the cytoplasm of the two conjugants fuses, the macronuclei disintegrate and the micronuclei undergo meiotic division. The haploid products of this division are exchanged and a zygote nucleus is formed in both conjugants. New macronuclei are then formed by mitotic division of the genetic material of the new micronuclei. Magnification x100 at 35mm size.
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June 25th, 2018
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