Reproductive organs and semens from Tslc1+/+ and Tslc1−/− male mice. (A and B) Morphology of reproductive organs from Tslc1+/+ (A) and Tslc1−/− (B) mice. The bladder (open arrow in panel A), prostate (open arrowhead in panel A), seminal vesicles (closed arrowhead in panel A), testes (closed arrow in panels A and B), vasa deferentia (open arrow in B), caput epididymides (closed arrowhead in panel B), and cauda epididymides (open arrowhead in panel B) are demonstrated. Note that the testes from the Tslc1−/− mice are significantly smaller than those from the Tslc1+/+ mice. (C to H) Phase-contrast microscopy of semens from Tslc1+/+ (C and E) and Tslc1−/− (D and F to H) mice. (I and J) PAS staining of semens from Tslc1+/+ (I) and Tslc1−/− mice (J). The open arrowhead indicates a possible acrosome with PAS staining.