Fusarium Head Blight Inoculum: Species Prevalence and Gibberella zeae Spore Type

Plant Disease
S G Markell, L J Francl

Abstract

The objectives of this study were to examine the relative abundance of Gibberella zeae ascospores and conidia and other Fusarium species on wheat spikes in a field environment, to relate inoculum counts of G. zeae to airborne spore counts, and to evaluate an inoculum bioassay technique. The inoculum levels of Fusarium species and airborne spores of G. zeae were measured in North Dakota during the 1999, 2000, and 2001 growing seasons. Spores were collected from wheat spikes in a 24-h potted-plant bioassay in a fallowed field and in a spring wheat plot bioassay. Inoculum levels of Fusarium species were assessed by placing a solution recovered from bioassays on selective medium; meanwhile, ascospores and conidia of G. zeae were enumerated microscopically. A Burkard cyclonic sampler measured airborne spore levels in the fallowed field. Wheat spikes were inoculated with known concentrations of conidia or ascospores, and rinsate was put on selective medium at different intervals to compare recovery rates. Known concentrations of both spore types were also applied directly to selective medium to compare with recovery of spore types from inoculated spikes. Fusarium graminearum was the most prevalent Fusarium species on wheat spikes, al...Continue Reading

References

Jul 1, 1999·Plant Disease·L FranclJ Wiersma
Jul 1, 1999·Plant Disease·B SalasP B Schwarz
Dec 1, 1997·Plant Disease·Marcia McMullenDale Gallenberg

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Citations

Mar 7, 2019·Plant Disease·Deanna L Funnell-HarrisStephen N Wegulo
Oct 24, 2008·Phytopathology·P A PaulL V Madden
Oct 24, 2008·Phytopathology·David G Schmale IiiGary C Bergstrom
Oct 24, 2008·Phytopathology·David G SchmaleGary C Bergstrom
Oct 18, 2015·Applied and Environmental Microbiology·Valentina Manstretta, Vittorio Rossi
Nov 1, 2004·Molecular Plant Pathology·Rubella S Goswami, H Corby Kistler
Jan 3, 2013·Molecular Plant Pathology·Barbara SchermQuirico Migheli
Apr 23, 2013·Mycotoxin Research·Elisabeth Oldenburg, Siegfried Schittenhelm
Sep 25, 2015·PloS One·Valentina Manstretta, Vittorio Rossi
Jul 1, 2004·Plant Disease·S A PereyraA L Sims
Aug 11, 2015·Molecular Microbiology·Chaohui LiJin-Rong Xu
Oct 2, 2020·Environmental Microbiology·Jinrong YinXue Zhang
Apr 2, 2011·Fungal Genetics and Biology : FG & B·Simon H MartinEmma T Steenkamp

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