国家自然科学基金(the National Natural Science Foundation of China under Grant No.60674003;No.60505005);国家杰出青年基金(the National Science Fund of China for Distinguished Young Scholar under Grant No.60325310);广东省自然科学团队研究项目(No.04205783);广东省自然科学基金(the Natural Science Foundation of Guangdong Province of China under Grant No.05006508; No.05103553);科技部重大基础前期研究专项(No.2005CCA04100)。