ABSTRACT
The life cycle of the majority of fungus includes both sexual and asexual reproduction. In numerous fungi, the sexual stage might be uncommon or absent. Fungi reproduce predominantly by spores, which are reproductive units composed of one or a few cells. Asexual reproduction stage is also known as imperfect stage and technically called as anamorphic stage. Sporangiospores are spores that are produced in a sporangium. When the asexual spores are produced internally, within the sporangia, such spores are called sporangiospores. The sac like sporangia which produces sporangiospores is called sporangium. Zoospores pass through the three phases viz., motility, encasement and germination. Flagella are thin, hair like delicate structures attached to a basal granule called blepharoplast in cytoplasm and these are the organs of motility in lower fungi and aquatic fungi.
