Subcellular localization of PtHsp90 proteins. A. Confocal image of an epidermal leaf cell expressing PtHsp90-3-YFP. B-C. Confocal images of epidermal leaf cells expressing PtHsp90-5a-YFP and PtHsp90-5b-YFP. The red channel shows autofluorescence of chlorophyll in photosynthetic tissues. D. Confocal images of epidermal leaf cells co-expressing YFP-PtHsp90-7 (red channel) and GFP-HDEL (green channel). Scale bar = 10 μm.