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Figure 1

From: Draft Genome Sequence of Chromatium okenii Isolated from the Stratified Alpine Lake Cadagno

Figure 1

Visual characterization of Chromatium okenii strain LaCa. (a) Microscopic image of C. okenii str. LaCa cells enriched form water sample from Lake Cadagno take at 12 m depth. Intracellular sulphur globules are visible as yellow, highly-refractive spheres. The polar flagellar tuft is visible (black arrow). Cells were directly mounted on a microscopy slide in 0.9% NaCl solution. An Axio Imager 2 microscope (Carl Zeiss Microscopy GmbH, Germany) with a EC Plan NEOFLUAR objective (100x, phase contrast) and an AxioCam MRc Rev3 digital camera were used to take photomicrographs. Images were processed with the AxioVision SE64 v4.8.2 software suite. (b) Visible C. okenii cell pellets enriched from a water sample from Lake Cadagno after 10 min centrifugation at 15 g.

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