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Innate Immunity in Free-Ranging African Buffalo (Syncerus caffer): Associations with Parasite Infection and White Blood Cell Counts

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dc.creator Beechler, Brianna R.
dc.creator Broughton, Heather
dc.creator Bell, Austin
dc.creator Ezenwa, Vanessa O.
dc.creator Jolles, Anna E.
dc.date.accessioned 2012-07-25T17:38:02Z
dc.date.available 2013-10-15T22:18:23Z
dc.date.issued 2012-05
dc.identifier.citation Beechler, B. R., Broughton, H., Bell, A., Ezenwa, V. O., & Jolles, A. E. (2012). Innate immunity in free-ranging african buffalo (syncerus caffer): Associations with parasite infection and white blood cell counts. Physiological and Biochemical Zoology : PBZ, 85(3), 255-264. doi: 10.1086/665276 en_US
dc.identifier.uri http://hdl.handle.net/1957/31530
dc.description This is the publisher’s final pdf. The published article is copyrighted by University of Chicago Press and can be found at: http://www.press.uchicago.edu/index.html. en_US
dc.description.abstract Molecular phylogenctic analyses indicate that the monophyletic classes Orbiliomycetes and Pezizomycetes are among the earliest diverging branches of Pezizomycotina, the largest subphylum of the Ascomycota. Although Orbiliomycetes is resolved as the most basal lineage in some analyses, molecular support for the node resolving the relationships between the two classes is low and topologies are unstable. We provide ultrastructural evidence to inform the placement of Orbiliomycetes by studying an Orbilia, a member of the only order (Orbiliales) of the class. The truncate ascus apex in the Orbilia is thin-walled except at the margin, and an irregular wall rupture of the apex permits ascospore discharge. Ascus, ascogenous and non-ascogenous hyphae were simple septate, with septal pores plugged by unelaborated electron-dense, non-membranous occlusions. Globose Woronin bodies were located on both sides of the septum. Nuclear division was characterized by the retention of an intact nuclear envelope, and a twolayered disk-shaped spindle pole body. The less differentiated nature of the spore discharge apparatus and septal pore organization supports an earliest diverging position of Orbiliomycetes within the subphylum, while the closed nuclear division and diskshaped spindle pole body are interpreted as ancestral state characters for Ascomycota. en_US
dc.description.sponsorship This research was funded by National Science Foundation awards DEB-0723918/1102493 and DEB-0723928 to V.O.E. and A.E.J., respectively. en_US
dc.language.iso en_US en_US
dc.publisher The University of Chicago Press en_US
dc.relation.ispartofseries Physiological and Biochemical Zoology en_US
dc.relation.ispartofseries Vol. 85 no. 3 en_US
dc.subject Ascus apical apparatus en_US
dc.subject Substitution electron-microscopy en_US
dc.subject Nematode-trapping fungi en_US
dc.subject Septal structures en_US
dc.subject Freeze-substitution en_US
dc.subject Apothecial tissues en_US
dc.subject Neurospora-crassa en_US
dc.subject Helvellaceae Pezizales en_US
dc.subject Aspergillus-nidulans en_US
dc.subject Ascomycota tree en_US
dc.title Innate Immunity in Free-Ranging African Buffalo (Syncerus caffer): Associations with Parasite Infection and White Blood Cell Counts en_US
dc.type Article en_US
dc.identifier.doi 10.1086/665276
dc.description.embargopolicy Repository Administrators en


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