1. Department of Chemistry; Shangrao Normal University; Shangrao; 334001; China
2. School of Life Science; Nanjing University; Nanjing; 210093; China
3. School of Life Science; Nanjing Agricultural University; Nanjing; 320093; China
4. Department of Biology; Georgia State University; Atlanta; GA; 30303; USA
5. Sericultural Research Institute; Chinese Academy of Agricultural Sciences; Zhenjiang; 212318; China