Aseptate hypae and asexual spores are seen with?

Ans. D. Zygomycetes.Mucormycosis (synonymous with phycomycosis and zygomycosis) is caused by fungi of the class Zygomycetes.Phycomycetes :# A large, important class of parasitic or saprophytic fungi, the algal or algalike fungi.# The plant body ranges from an undifferentiated mass of protoplasm to a well-developed and much-branched mycelium.# Reproduction is mainly sexual, by the formation of conidia or sporangia; but the group shows every form of transition from this method through simple conjugation to perfect sexual reproduction by egg and sperm in the higher forms.Fungi imperfectii (genera Penicillium and Aspergillus):# A heterogenous phylum of fungi which lack a sexual phase, or of which the sexual phase is not known. Some undoubtedly represent the conidium stages of various Ascomycetes. It is not considered a natural phylum, and is also called the Deuteromycota. The group is divided into the orders Sphaeropsidales, Melanconiales, and Moniliales. They reproduce asexually by means of conidia.Zygomycetes:# Fast growing, terrestrial, largely saprobic fungi with non motile cells; cosmopolitan (665 species).# Hyphae coenocytic and mostly aseptate.# Asexual spores include chlamydoconidia, conidia and sporangiospores contained in sporangia borne on simple or branched sporangiophores. Sexual reproduction is isogamous producing a thick-walled sexual resting spore called a zygospore. However, most isolates are heterothallic i.e. zygospores are absent, therefore identification is based primarily on sporangial morphology.# Medically important ones are Rhizopus, Mucor, Rhizomucor, Absidia,.ASCOMYCETES (common moulds)# Saprobes, parasites (esp. of plants), or lichen forming, mostly terrestrial; cosmopolitan.# Hyphae septate with simple septal pores, cytoplasmic and nuclear migration not inhibited.# Asexual reproduction is by conidia. Sexual reproduction is by the formation of endogenous ascospores, typically eight, in an ascus. Asci are often housed in a fruiting body or ascocarp e.g. cleistothecia or perithecia.# No classes are now recognized; although in the past they have often been grouped on how the asci were arranged (Hemiascomycetes, Plectomycetes, Pyrenomycetes, Discomycetes, Laboulbeniomycetes and Loculoascomycetes).# Medically important genera include the teleomorphs of known pathogenic fungi e.g. Arthroderma, Nannizzia, Ajellomyces, Pseudallescheria, Eurotium.