Taphrina

"Taphrina" is fungal genus within the Ascomycota that causes leaf and catkin curl diseases and witch's brooms of certain flowering plants. One of the more commonly observed species causes peach leaf curl. "Taphrina" typically grow as yeasts during one phase of their life-cycles, then infect plant tissues in which typical hyphae are formed, and ultimately they form a naked layer of asci on the deformed, often brightly pigmented surfaces of their hosts. No discrete fruitbody is formed outside of the gall-like or blister-like tissues of the hosts. The asci form a layer lacking paraphyses, and they lack croziers. The acospores frequently bud into multiple yeast cells within the asci. Phylogenetically, "Taphrina" is a member of a basal group within the Ascomycota, and type genus for the subphylum Taphrinomycotina, the class Taphrinomycetes, and order Taphrinalescite journal | author=Lutzoni et al | title= Assembling the fungal tree of life: progress, classification, and evolution of subcellular traits | journal=Amer J Bot | year=2004 | pages=1446–1480 | volume=91 | doi= 10.3732/ajb.91.10.1446 ] cite journal | author=James TY et al | title=Reconstructing the early evolution of Fungi using a six-gene phylogeny | journal=Nature | year=2006 | pages=818–822 | volume=443 | pmid=17051209 | doi=10.1038/nature05110] .

References

# [http://www.pfc.cfs.nrcan.gc.ca/diseases/CTD/Group/Broad/broad5_f.html Broad leaf plant diseases in Canada (BC)- leaf spot example of Taphrina]
# [http://helios.bto.ed.ac.uk/bto/FungalBiology/chap2_2i.htm Biology of fungi - microphoto of Taphrina]
# [http://www.fungi4schools.org/Documentation/Photo_Gallery.htm Witches Broom image]
# [http://www.palaeos.com/Fungi/Ascomycota/Ascomycota.html Palaeos "Introduction to the Ascomycota"]
# [http://ocid.nacse.org/classroom/fungi/bot461/lectures/Lecture%2014.ppt The Oregon Coalition of Interdisciplinary Databases: "Archiascomycetes: Early Diverging Ascomycetes"]

Footnotes