Phycomycetes (Lower Fungi)

• They occur in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants.
• The mycelium is aseptate and coenocytic.
• Asexual reproduction: takes place by zoospores (motile) or by aplanospores (non-motile). These are produced in sporangium.
• Sexual reproduction: Zygospores are formed by fusion of two gametes.
• These gametes are isogamous (similar in morphology) or anisogamous or oogamous (dissimilar).
• E.g. Mucor, Rhizopus (bread mould) and Albugo (parasitic fungi on mustard)