Changes

Asexual spores are either '''sporangiospores''' or '''conidiospores'''. Sporangiospores are formed when the cytoplasm cleaves within a sporangium (multinucleate segment of hyphae), producing either naked '''zoospores''' which have one or more flagella and are liberated through a hole in the sporangial wall or producing '''aplanospores'''. Aplanospores are non-motile and walled and are released when the sporangial wall breaks down. Conidiospores, such as [[Systemic Mycoses#Aspergillosis|''Aspergillus'']] can be formed directly from the mycelium, produced within a specialised fructification or can be formed externally by the abstriction of a conidiophore. Different types of conidia can be produced which differ in cell size and number and are called either '''microconidia''' (small and unicellular) or '''macroconidia''' (large and multicellular).

Asexual spores are either '''sporangiospores''' or '''conidiospores'''. Sporangiospores are formed when the cytoplasm cleaves within a sporangium (multinucleate segment of hyphae), producing either naked '''zoospores''' which have one or more flagella and are liberated through a hole in the sporangial wall or producing '''aplanospores'''. Aplanospores are non-motile and walled and are released when the sporangial wall breaks down. Conidiospores, such as [[Systemic Mycoses#Aspergillosis|''Aspergillus'']] can be formed directly from the mycelium, produced within a specialised fructification or can be formed externally by the abstriction of a conidiophore. Different types of conidia can be produced which differ in cell size and number and are called either '''microconidia''' (small and unicellular) or '''macroconidia''' (large and multicellular).

The sexual spores are divided into four categories depending upon the spores produced and their morphology. '''Zygomycetes''' are primitive fungi with a non-septate mycelium. The sexual spores are oospores or zygospores (the asexual spores are produced in a sporangium). '''Ascomycetes''' are higher fungi. They have a septate mycelium and the sexual spores are called ascospores (the asexual spores are conidia). '''Basidiomycetes''' are also higher fungi with a septate mycelium which has clamp connections. the sexual spores are basidiospores (the asexual spores are produced externally). '''Deuteromycetes''' are an artifical group of fungi which have an unknown sexual state.

The sexual spores are divided into four categories depending upon the spores produced and their morphology. '''Zygomycetes''' are primitive fungi with a non-septate mycelium. The sexual spores are oospores or zygospores (the asexual spores are produced in a sporangium). '''Ascomycetes''' are higher fungi. They have a septate mycelium and the sexual spores are called ascospores (the asexual spores are conidia). '''Basidiomycetes''' are also higher fungi with a septate mycelium which has clamp connections. The sexual spores are basidiospores (the asexual spores are produced externally). '''Deuteromycetes''' are an artifical group of fungi which have an unknown sexual state.

=Major pathogenic fungi=

=Major pathogenic fungi=