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PMH1 and PMH2 are located in mitochondria. Images of tobacco protoplasts expressing the PMH1:GFP (69-amino acid construct) and the PMH2:GFP (104-amino acid construct) fusion proteins, respectively, were taken with filters allowing the detection of GFP fluorescence and chlorophyll autofluorescence (left) and a filter optimized for visualization of MitoTracker fluorescence (right). Bars correspond to 10 μm.
