Variation in mesophyll cell number and size in wheat leaves
1990
Pyke, K.A. | Jellings, A.J. | Leech, R.M.
The numbers of mesophyll cells in wheat leaves were determined in a variety of wheat species differing in ploidy level and in leaves from different positions on the wheat plant. Leaf size and mesophyll cell number are linearly related in both cases but differences were observed in mesophyll cell number per unit leaf area with changing leaf size. Where changes in cell size are caused either by nuclear ploidy or leaf position, differences in mesophyll cell number per unit leaf are negatively correlated with mesophyll cell plan area. The decrease in cell size with increasing leaf position also results in a greater number of chloroplasts per unit leaf area. These results are discussed in relation to anatomical variation of the wheat leaf.
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