2 Fungi ClassificationClassified based upon their structure and reproduction4 main groups are:Common moldsSac fungiClub fungiImperfect fungi
3 Common MoldsThese are the familiar molds that grow on meat, cheese, and breadPhylum zygomycotaHave life cycles that include a zygosporeZygospore – resting spore that contains zygotes formed from sexual phase of life cycleLife Cycle:Hyphae fuse forming gametangiaThrough meiosis, it produces genetically different spores
4 Structure of Bread Mold 2 types of hyphae on bread moldRhizoids – anchor fungus to the bread, release digestive enzymes, and absorb nutrientsStolons – run along the surface of breadSporangiophores – hyphae that push into air and contain sporesOne may contain spores
5 Sac Fungi Phylum Ascomycota Named for ascus – the reproductive structure that produces sporesLargest phylum of fungiCup fungi, yeast, etc.
6 Sac Fungi Includes both sexual and asexual portions of life cycle Tiny spores called “conidia” are formed at tips of hyphae called conidiophoresAscus – forms within the fruiting bodyThis is where the two mating types fuse forming the zygoteAscospores are the zygote (8 produced)
7 Club Fungi Phylum Basidiomycota Get name from specialized reproductive structure that resembles a clubThis spore bearing structure is called the “basidium”These are found in the gills on the underside of mushroom caps
8 Club Fungi Cont.For reproductive structures to form, moisture and nutrient content of soil has to be perfectGrowth of mushroom is caused by cell enlargement due to intake of waterBasidiospores are located in gillsCan produce billions or trillions of sporesEx: jelly fungi, puff balls, star
9 Imperfect Fungi Phylum Deuteromycota NO sexual phase of life cycle Imperfect implies that we do not fully understand their life cycleSource of anti-biotic penicillin