Nerve-muscle interactions between WT and <i>Abl</i> cells.

Abstract

<p>A1 & B1) Merged images of phase contrast and fluorescent optics. The cells labeled red are from Da-Gal4>UAS-RFP embryos (<i>Abl</i>^+/+) and the unlabeled cells are from <i>Abl</i> embryos. A1) Neurites from an <i>Abl</i> neuronal cluster interact with a group of <i>Abl</i> and <i>Abl</i>^+/+ muscle cells, which are potentially in the process of fusion. A2) Enlargement of the boxed area in A1 showing nerve-muscle contact. B1) <i>Abl</i> neurites contact a multinucleated muscle cell, which is labeled by RFP. B2) Enlargement of boxed area in B1. This suggests that <i>Abl</i> neurons can make contact with WT muscle cells (and vice versa, data not shown). Age of culture, 3 days. Cultures were derived from stage 10 <i>Abl</i> mutants and stage 12 WT embryos. Scale bar, 10 µm.</p