11. Some are holocarpic, which means they only produce a zoosporangium and zoospores . 12. Under certain stress conditions some zoospore pairs fuse, resulting in a zygote. 13. Proper field drainage prevents flooding and therefore inhibit zoospore movement towards the host. 14. The impact of falling rain drops may splash zoospores into air in droplets. 15. Sporangium that produce zoospores make up the asexual phase of the life cycle. 16. Zoospores are biflagellate motile spores responsible for the polycyclic qualities of this disease.17. Dormant resting spores can germinate and produce an infection from the virus containing zoospore . 18. The zoospores need water to reach the host so saturated soil conditions maximize dissemination. 19. Indirect infections occur under unfavorable or very wet conditions by releasing zoospores from sporangia. 20. Some chytrids are monocentric, meaning a single zoospore gives rise to a single zoosporangium.
