IV. The Domain Eukarya E. Fungi 1. Overview: The Opisthokont Clade Fungi Choanoflagellates Animals IV. The Domain Eukarya E. Fungi 1. Overview: 2. “Body Plan” http://sharon-taxonomy2009-p2.wikispaces.com/Fungi IV. The Domain Eukarya E. Fungi 1. Overview: 2. “Body Plan” http://www.rhizomes.net/issue15/groves/index.html http://www.ipm.iastate.edu/ipm/hortnews/node/98 mycelium IV. The Domain Eukarya E. Fungi 1. Overview: 2. “Body Plan” Big mushrooms Earliest fungal-like fossils (septate networks) date to 1.4 bya, lived in benthic marine habitats. Fungi remain important decomposers in marine and freshwater ecosystems Colonized land in Cambrian, before plants; maybe as lichenous symbiotes. Prototaxites of the Silurian was 8m tall and 1m wide! http://scienceblogs.com/zooillogix/2007/04/giant_prehistoric_organism_ide.php IV. The Domain Eukarya E. Fungi http://www.uoguelph.ca/~gbarron/N-D%20Fungi/ndfungi.htm 1. Overview: 2. “Body Plan” 3. Ecological Roles - decomposers http://www.mdfrc.org.au/projects/education/willi amsthesis.htm http://www.carleton.ca/toxin/ http://www.ipm.iastate.edu/ipm/hortnews/node/98 http://kentsimmons.uwinnipeg.ca/16cm05/1116/16ecosys.htm IV. The Domain Eukarya E. Fungi http://www.uoguelph.ca/~gbarron/N-D%20Fungi/ndfungi.htm 1. Overview: 2. “Body Plan” 3. Ecological Roles - decomposers - parasites/pathogens/predators http://doctorexclusive.com/?cat=126 http://herbarium.usu.edu/fungi/funfacts/a nt_fung.htm http://www.plantpath.wisc.edu/PDDCEducation/MasterGardener/General/Slide12.htm IV. The Domain Eukarya E. Fungi 1. Overview: 2. “Body Plan” 3. Ecological Roles - symbionts Lichens: fungus + algae or cyanobacteria http://www.elkhornslough.org/sloughlife /plants/lichen.htm Arbuscular mycorrhizae – found in 80% of vascular plant families; in oldest vascular plant fossils (Rhynie Chert – 420 mya) http://sarcozona.org/2009/03/18/what-do-you-know/ IV. The Domain Eukarya E. Fungi 1. Overview: 2. “Body Plan” 3. Ecological Roles - symbionts • Increase absorptive surface area of root system • Secreted enzymes increase absorption of N and P in particular • Can connect to plants of different plant species, and even transfer nutrients between them • One species may attract and poison insects (springtails), and digest and absorb their nitrogen (up to 25% of a plants nitrogen budget!) • Present in oldest vascular plant fossils, and molecular analyses confirm an ancient association which may have been critical for plants to colonize land http://www.ces.ncsu.edu/depts/ent/no tes/Urban/springtails.htm http://directory.leadmaverick.com/Denton-PestControl-Service/DallasFortWorthArlington/TX/10/10739/index.aspx Phylogeny of the fungal kingdom. Galagan J E et al. Genome Res. 2005;15:1620-1631 ©2005 by Cold Spring Harbor Laboratory Press IV. The Domain Eukarya E. Fungi 1. 2. 3. 4. Overview: “Body Plan” Ecological Roles Generalized Life Cycle http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lectures/fungi/fungi.htm IV. The Domain Eukarya E. Fungi 1. 2. 3. 4. 5. Overview: “Body Plan” Ecological Roles Generalized Life Cycle Fungal Diversity http://sharonapbio-taxonomy.wikispaces.com/Fungi IV. The Domain Eukarya E. Fungi 1. 2. 3. 4. 5. Overview: “Body Plan” Ecological Roles Generalized Life Cycle Fungal Diversity - Chytridomycota http://sharon-taxonomy2009-p2.wikispaces.com/Fungi http://microbewiki.kenyon.edu/index.php/Chytridiomycota IV. The Domain Eukarya E. Fungi 1. 2. 3. 4. 5. Overview: “Body Plan” Ecological Roles Generalized Life Cycle Fungal Diversity - Chytridomycota 40% of amphibian populations are in decline worldwide, probably due to a combination of climate change, pollution, habitat loss and degradation, and chytrid fugal infections. http://cisr.ucr.edu/chytrid_fungus.html 5. Fungal Diversity - Zygomycota http://biology.nicerweb.com/bio1151/Locked/media/lab/diversity/fungi/key1151.html 5. Fungal Diversity - Ascomycota http://www.cosmosbiomedical.com/education/mycology/mycology2.shtml 5. Fungal Diversity - Basidiomycota http://www.griswold.k12.ia.us/pcarlsonweb/fungi_kingdom.htm