Fig. 6From: Photosynthetic characteristics and chloroplast ultrastructure of welsh onion (Allium fistulosum L.) grown under different LED wavelengthsChloroplast ultrastructure of Welsh onions under different light conditions. Transmission electron microscopy observations of mesophyll cells in Welsh onion leaves exposed to W Light (w1-w3) and B, G, Y, R Light (b1-r3). The bars shown are 10 μm, 2 μm, 1 μm, respectively. The size and arrangement density of chloroplasts could be clearly seen at 10 μm and 2 μm, and the grana lamella and stroma lamella of chloroplasts could be clearly seen at 1 μm. Ch: chloroplast; GL: grana lamella; SL: stroma lamella; white arrow: osmiophilic particles; W: white light; B: blue light; G: green light; Y: yellow light; R: red lightBack to article page