The Beauty Within. A pair of tulips? Berries? What does this look like to you?
You’ll never guess the identity of this award winning image from the 2011 Olympus BioScapes competition.
This is an image of the ovaries and oviducts of the fruit fly Drosophila melanogaster. It is one of the best systems for studying basic stem cell biology. Each ovary has 12-16 ovarioles. Stem cells are located in a niche, the most apical part, known as germarium. There are three types of stem cells: germline stem cells (GSCs), somatic stem cells (SSCs) and newly identified escort stem cells (ESCs), whose activities have been confirmed by lineage tracing and laser ablation experiments.
Read more about Drosophila stem cells: http://www.nature.com/cr/journal/v17/n1/full/7310123a.html