Bio Exam II. 7 Zygomycetes

small

glomeromycota 

sapr. 

parasites

their hyphae are coenocytic; no sight no crosswalls

because they have chitin. 

how they form spores

produce sporangia (develop similarly to water molds)

• between each part, there are nuclei 
• each nucleus gets a cell wall to become a spore

• two mating strains
• if growing in the same vicinity, peglike structures form that come off the hyphae that enlarge  (progametangium)

chemical attraction


The gametes? come together and fuse--> zygospore

In this, the nuclei fuse--> coenozygote (when the mating strains come together just before forming a zygospore

SUMMARY: must have both mating strains--> gametangia--> young zygospores (coenozygote)--> zygospore--> sporangium--> spore

a zygospore that always shoots spores towards the light

black bread mold