An amine-reactive caged rhodamine was synthesized and conjugated to aminode
xtran. The resulting tracer was injected into a single cell zebrafish embry
o, and a portion of the tracer was photolyzed in a single cell after develo
pment. The resulting fluorescent cell was imaged by fluorescence microscopy
through a single round of cell division. (C) 2001 Elsevier Science Ltd. Al
l rights reserved.