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Effects of Boron on the Function of Plant Membrane

Shi Lei Yang Yuhua Xu Fangsen Wang Yunhua (Huazhong Agriculture University, Wuhan 430070 ,China )  
This paper reviews the mechanisms of the effects of boron on the function of plant membrane and concluds that the boron efficiency is determined by the adsorption of boron by the plant root cell membrane. The accumulation of boron in sensitive cultivars is more than that in the tolerance cultivars, which depends on the permeability of boric acid across the plant membrane, and also relates to the composition of plant cell wall. Maybe boron enters plant cells in part by passive diffusion through the lipid bilayer of the plasma membrane and in part through proteinaceous channels. The difference of boron efficiency on the absorption, the translocation and the recycle is a mirror that reflects the difference in lipid composition, permeability of boric acid across the plant membrane and channel protein.
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