Fig. 2
From: Interaction of different Chlamydiae species with bovine spermatozoa
Light microscopical evaluation clearly confirms binding of C. abortus and psittaci to bovine spermatozoa. The orange particles represent chlamydial particles (a. C. abortus; b. C. psittaci) bound to a bovine spermatozoon. The particles look orange due to the use of a blue filter. In the negative control (c.), no similar particles are visible (magnification: × 1000)