Abstract
This study has investigated toxicity of Zn and phytoremediation ability in shoot of moso bamboo. In hydroponic experiment the plants showed high Zn torelence up to application of 400 A mu M, while there was a general trend of decline in the roots and shoot biomass. Maximum concentration of 1594 mg kg(-1) was observed in shoot after treating with 100 A mu M Zn. The shoot/root ratio reached the level of 0.27 under 10 A mu M zinc stress. Transmission electron microscopy revealed that electron-dense granules in vacuoles and structure of leaf cells were significantly effected by 200 A mu M of Zn. However, mitochondria and thylakoid membrane arrangement did not alter. Using scanning electron microscopy, Zn-related changes in the structure of the stoma were uncovered and crystal particles probably of Zinc were observed in stem.