Schematic diagram of Lonicera japonica leaf anatomical traits (left side) and CO2 diffusion pathway under NH4+ alone supply (right side). (IMAGE)
Caption
Schematic diagram of Lonicera japonica leaf anatomical traits (left side) and CO2 diffusion pathway under NH4+ alone supply (right side). In the left side, Sc/S was outlined with red lines and Smes/S was marked with yellow lines. The accurate Sc/S estimations overlapped Smes/S lines, whereas they are displayed independently here for clarity. Chloroplasts were highlighted with blue. Decreased chloroplast numbers resulted in the reductions in Sc/S. The intercellular spaces were pointed out with pink discontinuous lines. The tight arrangement of mesophyll cells under sole NH4+ supplies led to increased intercellular spaces, which exacerbated the reductions in Sc/S and Smes/S. In the right side, the black folded lines represent the strength of CO2 diffusion resistance into the cell from cell wall (rcw), plasma (rpl), cytoplasm (rcyt), envelope (renv), and stroma (rst), while the rcw and rcyt which are marked with red indicated the values of this component differed among the treatments (P < 0.05). Black discontinuous lines indicated the hypothesized pathways that could partially influence the CO2 diffusion and thereby gm.
Credit
Horticulture Research
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