Light micrograph of synapses between a motor neurone (tree-like) & skeletal muscle cells (bands in background). The end of the axon (large fibre) of a motor neurone in contact with a muscle cell divides into branches, each one terminating in a motor end plate on a different muscle fibre.
"Leprosy bacteria use 'biological alchemy'-Infectious bacteria have for the first time been caught performing "biological alchemy" to transform parts of a host body into those more suited to their purposes...The study...showed leprosy-causing bacteria turning nerves into stem cells and muscle...Prof Chris Mason, a specialist in stem cell research at University College London, said: "The ability of bacteria to convert one mammalian cell type to another is 'alchemy' by nature on a grand scale..."
Light-sheet microscopy Image of the ~50,000 cell nuclei of a 22-hour-old zebrafish embryo. The fluorescently labeled cell nuclei are shown in a blue-to-red color code that indicates depth in the image. Image from the lab of Philipp Keller at the Howard Hughes Medical Institute.
David Goodsell's Neuromuscular synapse. The acetylcholine-laden vesicles are carrying and releasing the neurotransmitter (ACh) from the neuron (upper 1/3) into the synaptic cleft (the middle pink section filled with laminin, collagen, perlecan and flower-like acetylcholinesterase). The muscle cell is the bottom 1/3.
2003: Filamentous actin and microtubules (structural proteins) in mouse fibroblasts (cells) (1000x), Fluorescence. / Torsten Wittmann, The Scripps Research Institute. Courtesy of Nikon Small World. The 2003 runners up.