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Description
One cell within a 16-cell sand dollar embryo expressing three tandem GFPs fused to the ensconsin microtubule-binding domain (EMTB-3G; Faire et al., 1999). The embryo was treated with 25 µM trichostatin A (TSA), an inhibitor of HDAC6 (a tubulin deacetylase) that selectively disrupts dynamic microtubules in mammalian cells 10 min before time 00:00. Although the aster regrows slightly, the cortex is ∼20 µm away from the nearest spindle microtubule ends; nevertheless, cytokinesis completes accurately. Sand dollar 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. Room temperature was maintained at 14–17°C. Video correspond to Fig 4C and second 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:15789, Dendraster excentricus. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0BV7FBP
Type
image
Identifier
ark:/20775/bb6661987x
Language
No linguistic content
Subject
Mitosis Cytokinesis after mitosis Embryo Trichostatin A treatment Spindle Aster Cell cortex Microtubule Ensconsin Dendraster excentricus Cell Image Library Group ID: 6184
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