In the pollen tube of buckwheat,the function of coated vesicles which contain the precursor of pollen tube wall is to form pollen tube besides decomposing lipid bodies and amyloplast.

• 花粉管的被膜小泡中含有花粉管壁的前体物质，与花粉管的壁融合参与花粉管的生长。被膜小泡可能含有与脂体和造粉质体水解有关的酶，参与此类物质的降解。