The test of potted cotton affected by dust-fall was conducted and through electron microscope, the characters of anatomical structure of cotton leaves under different treatments were studied in this paper. The main results were as follows： the arrangement of palisade tissue in cotton leaves treated with dust-fall was irregular, the histiocyte in palisade tissue was shrinked and shorted. more seriously, part of them were bent. The intercellular space was wider and the cell inclusion of spongy tissue was also decreased. However, the vascular bun...
