Under copyright Constraint(s) on Use: This work is protected by the U.S. Copyright Law (Title 17, U.S.C.). Use of this work beyond that allowed by "fair use" or any license applied to this work requires written permission of the copyright holder(s). Responsibility for obtaining permissions and any use and distribution of this work rests exclusively with the user and not the UC San Diego Library. Inquiries can be made to the UC San Diego Library program having custody of the work. Use: This work is available from the UC San Diego Library. This digital copy of the work is intended to support research, teaching, and private study.
Rights Holder and Contact
UC Regents
Description
16-cell purple urchin embryo expressing three tandem GFPs fused to the ensconsin microtubule-binding domain (EMTB-3G; Faire et al., 1999). The embryo was treated with 20 µM trichostatin A (TSA), an inhibitor of HDAC6 (a tubulin deacetylase) that selectively disrupts dynamic microtubules in mammalian cells, at time 00:00. Within minutes of TSA addition in metaphase, asters were reduced to nearly nothing (04:00). Despite reduction in spindle length, cells enter anaphase (07:20) and complete cytokinesis (11:20–16:10). No microtubules connecting the mitotic apparatus to the cortex are visible. Embryos were imaged with a laser scanning confocal microscope (Radiance 2000; Bio-Rad Laboratories) mounted on a compound microscope (E800; Nikon) using a 40× 1.3 NA Plan-Fluor oil lens at room temperature. Corresponds to Figure 4A and first segment of video 4 in J Cell Biol. 2009 Dec 14;187(6):831-45. Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp) Von Dassow, George; Verbrugghe, Koen J.C.; Miller, Ann L.; Sider, Jenny R.; Bement, William M. (2021). CIL:15788, Strongylocentrotus purpuratus. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0RX99VX
Type
moving image
Identifier
ark:/20775/bb5433308k
Language
No linguistic content
Subject
Cytokinesis after mitosis Mitotic metaphase Trichostatin A treatment Embryo Mitotic anaphase Microtubule Ensconsin Astral microtubule Spindle Strongylocentrotus purpuratus Cell Image Library Group ID: 6184
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.
