Male germ unit 第1页

Ultrastructures of the Egg Apparatus and the Central Cell of Calystegia hederacea (Convolvulaceae) Before and After Fertilizati on Ultrastructural studies of microsporogenesis and development of male gametophyte in Paeonia suffruticosa Ultrastructure of Sunflower Embryo Sac in Respect to the Concept of Female Germ Unit Male Germ Unit and Sperm Heteromorphism: The Current Status