Creative Commons Public Domain Dedication Constraint(s) on Use: This work may be used without prior permission. Use: The person(s) who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Description
During self conjugation two cells from a 6-day old culture come together, bridges are formed between them and haploid products of meiotic division of their micronuclei are exchanged between the mating pairs. Two micronuclei are seen here which appear similar to the haploid pronucleus in the paper of Inaba et al. (Proc. Japan Acad. 42:394-398, 1966) which is passing through such a bridge in P. multimicronucleatum. In this micrograph two rounded micronuclei are lying very near the macronucleus. These may be the migratory and stationary pronuclei that will form the diploid synkaryon nucleus from which the new micronuclei and macronucleus will form after further mitotic divisions. Interestingly one of these nuclei appears to be in close contact with the macronucleus. TEM taken on 3/4/80 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 5,000X. Bar = 1µm. Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp) Allen, Richard (2021). CIL:36657, Paramecium multimicronucleatum, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0GQ6WRX
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.