Isolation, Storage, Pathotype Characterization, and Evaluation of Resistance for <i>Phytophthora sojae</i> in Soybean

Fig. 3A. Antheridia may be attached to the P. sojae oospores in a paragynous (A, shown here) or amphigynous (B) position.



Image from Plant Health Progress article:
Isolation, Storage, Pathotype Characterization, and Evaluation of Resistance for Phytophthora sojae in Soybean