1. Botany Department; Faculty of Science; Kafr El-Sheikh University; 33516 Kafr El-Sheikh Egypt
2. Botany Department; Faculty of Science; Tanta University; 31527 Tanta Egypt
3. Institute for Environmental Science and Technology (IEST); Saitama University; 255 Shimo-Okubo Sakura-ku Saitama shi 338-8750 Japan