Search results for "Bisbenzimide"
showing 2 items of 2 documents
Multiple, alternative cleavage patterns precede uniform larval morphology during normal development of Dreissena polymorpha (Mollusca, Lamellibranchi…
1995
In this study we reinvestigate the early development of the freshwater mussel Dreissena polymorpha, previously studied by Meisenheimer (1901). The data include video time-lapse recordings of living embryos and bisbenzimide stains of fixed embryos as well as morphometry on fixed, serially-sectioned embryos. We present the cell lineage and cell cycle durations up to the first indication of symmetrization within this embryo. We show that early cell cycles last approximately 1h. A dramatic extension of cell cycle duration and a concomitant asynchrony among the various cell lines was observed starting at the fifth cleavage. Short cell cycles, like those of early blastomeres, were a constant prop…
Retrograde transport of sodium selenite and intracellular injection of micro-ruby: a combined method to describe the morphology of zinc-rich neurones.
2003
Abstract Zinc is found in synaptic vesicles in a large number of glutamatergic systems. Its involvement in neurotransmission and neurological disorders has been suggested. There are methods for tracing these circuits, but they do not fill the dendritic tree. In this study, extracellular selenite injections in vivo were combined with intracellular injection of fluorochromes in fixed tissue to reveal the morphology of these zinc-rich neurones. Intraperitoneal and intracerebral injections of sodium selenite alone or intracerebral injections of selenite combined with bisbenzimide were made in the visual cortex of the rat in order to locate the somata of zinc-rich neurones. After 24 h of retrogr…