Lect04S2011 - Fungi Fungi Phyla of Fungi: Chytridiomycetes...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
Fungi Fungi Phyla of Fungi: Chytridiomycetes Zygomycetes Glomeromycetes Ascomycetes Basidiomycetes Chytridiomycetes: Spores and gametes flagellated. Single, uniflagellated whiplash flagellum. Textbook recognizes phyla, i.e. -mycota ending but utilizes class endings, instead i.e. - mycetes .
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chytridiomycetes Chytridiomycetes Many species simple, i.e. unicellular: Chytridium parasitizing pollen grains in water Uniflagellated, whiplash zoospores of Chytridiomycota
Background image of page 2
Chytridiomycetes Chytridiomycetes Some complex, i.e. mycelial with differentiation: Young Young gametothallus gametothallus of of Allomyces macrogynus Allomyces macrogynus Male, female gametangia, and gametes Male, female gametangia, and gametes
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chytridiomycetes Chytridiomycetes Phylum is pivotal in fungal evolution: Most ancient group to diverge in fungal evolution.
Background image of page 4
Chytridiomycota Chytridiomycota
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Microsporidia Microsporidia Fungus of uncertain affinity: Fungus tree from “Tree of Life” web page.
Background image of page 6
Chytridiomycota Chytridiomycota Phylum is pivotal in fungal evolution: Once thought that fungi lost flagella once in evolutionary history.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Zygomycetes and other chytrids Some chytrids Glomeromycetes, ascomycetes, and basidiomycetes Common ancestor Key Loss of flagella Phylum paraphyletic: Some species closely related to Zygomycete s Chytridiomycota Chytridiomycota
Background image of page 8
“Terrestrial” Fungi “Terrestrial” Fungi Remaining phyla of fungi distinguished by sexual spore stage: Zygomycetes : Zygosporangium (=Zygospore). Ascomycota : Asci (sing.= Ascus ) and ascospores . . Basidiomycota : : Basidia (sing.= Basidium ) and Basidiospores . .
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Zygomycetes Zygomycetes Spores of phyla common in air Rhizopus Rhizopus , a common , a common food contaminant food contaminant
Background image of page 10
Zygomycetes Zygomycetes Characteristics of Zygomycota: Sexual spore : zygosporangia supported by supported by suspensors Asexual spores borne in sporangium Mycelium coenocytic
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Rhizopus Life Cycle Summary Rhizopus Life Cycle Summary
Background image of page 12
Rhizopus Life Cycle Rhizopus Life Cycle Asexual cycle : Causes most problem Asexual as long as food is available Each sporangium produces thousands of spores that become air-borne.
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Rhizopus Life Cycle Rhizopus Life Cycle Sexual cycle: Summary
Background image of page 14
Rhizopus Life Cycle Nuclei migrate to ends of branch. The “+” and “-” branch strains
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 16
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/09/2011 for the course BIOL 172 taught by Professor Huddleston,m during the Spring '08 term at University of Hawaii, Manoa.

Page1 / 63

Lect04S2011 - Fungi Fungi Phyla of Fungi: Chytridiomycetes...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online