Kurt Zeller | Frederick Community College (original) (raw)

Papers by Kurt Zeller

Mycologia, 1995

... morphological characteristics Kurt A. Zeller Department of Biological Sciences, Purdue Univer... more ... morphological characteristics Kurt A. Zeller Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907 ... ples taken from different host families (Zeller and Levy, 1995) and supports subdivision within section Gol-525 Page 2. 526 Mycologia ...

Phytopathology, Jul 1, 2003

Applied and Environmental Microbiology, Oct 1, 2000

Applied and Environmental Microbiology, Apr 1, 2004

European Journal of Plant Pathology, 2009

Http Dx Doi Org 10 1094 Pdis 2002 86 4 373, Feb 23, 2007

ABSTRACT Four clonal lineages of Cephalosporium maydis, a soilborne vascular wilt pathogen that c... more ABSTRACT Four clonal lineages of Cephalosporium maydis, a soilborne vascular wilt pathogen that causes late wilt of maize, were differentiated previously with molecular markers. In Egypt, this fungus can cause significant losses in infected susceptible plants. ...

We constructed a genetic linkage map of Gibberella zeae (Fusarium graminearum) by crossing comple... more We constructed a genetic linkage map of Gibberella zeae (Fusarium graminearum) by crossing complemen- tary nitrate-nonutilizing (nit) mutants of G. zeae strains R-5470 (from Japan) and Z-3639 (from Kansas). We selected 99 nitrate-utilizing (recombinant) progeny and analyzed them for amplified fragment length polymorphisms (AFLPs). We used 34 pairs of two-base selective AFLP primers and identified 1048 polymor- phic markers that

Physiological and Molecular Plant Pathology, 2001

Applied and environmental microbiology, 1999

Mating type in the Gibberella fujikuroi species complex is controlled by a single locus with two ... more Mating type in the Gibberella fujikuroi species complex is controlled by a single locus with two alleles and is usually identified following sexual crosses with standard, female-fertile tester isolates. The mating type alleles have been arbitrarily designated "+" and "-" within each biological species, and the nomenclature is tied to the standard tester strains. We developed a pair of PCR primers that can be used to amplify a unique fragment of one of the mating type alleles (MAT-2) from at least seven of the biological species in this species complex. Based on the amplification pattern, we propose a replacement for the existing, arbitrary +/- terminology that is presently in use. The new terminology is based on DNA sequence similarities between the mating type allele fragments from the biological species of the G. fujikuroi species complex and the corresponding fragments from other filamentous ascomycetes.

Phytopathology, 2003

Gibberella zeae (anamorph Fusarium graminearum) causes Fusarium head blight (FHB) of wheat and ba... more Gibberella zeae (anamorph Fusarium graminearum) causes Fusarium head blight (FHB) of wheat and barley and has been responsible for several billion dollars of losses in the United States since the early 1990s. We isolated G. zeae from the top, middle, and bottom positions of wheat spikes collected from 0.25-m(2) quadrats during severe FHB epidemics in a single Kansas (KS) field (1993) and in a single North Dakota (ND) field (1994). Three amplified fragment length polymorphism (AFLP) primer pairs were used to resolve 94 polymorphic loci from 253 isolates. Members of a subset of 26 isolates also were tested for vegetative compatibility groups (VCGs). Both methods indicated high levels of genotypic variability and identified the same sets of isolates as probable clones. The mean number of AFLP multilocus haplotypes per head was approximately 1.8 in each population, but this value probably underestimates the true mean due to the small number of samples taken from each head. Isolates with...

Phytopathology, 2006

Gibberella zeae, causal agent of Fusarium head blight (FHB) of wheat and barley and Gibberella ea... more Gibberella zeae, causal agent of Fusarium head blight (FHB) of wheat and barley and Gibberella ear rot (GER) of corn, may be transported over long distances in the atmosphere. Epidemics of FHB and GER may be initiated by regional atmospheric sources of inoculum of G. zeae; however, little is known about the origin of inoculum for these epidemics. We tested the hypothesis that atmospheric populations of G. zeae are genetically diverse by determining the genetic structure of New York atmospheric populations (NYAPs) of G. zeae, and comparing them with populations of G. zeae collected from seven different states in the northern United States. Viable, airborne spores of G. zeae were collected in rotational (lacking any apparent within-field inoculum sources of G. zeae) wheat and corn fields in Aurora, NY in May through August over 3 years (2002 to 2004). We evaluated 23 amplified fragment length polymorphism (AFLP) loci in 780 isolates of G. zeae. Normalized genotypic diversity was high ...

Plant Disease, 2002

Mycologia, 2001

Mycologia, 93(6), 2001, pp. 1203-1210. ? 2001 by The Mycological Society of America, Lawrence, KS... more Mycologia, 93(6), 2001, pp. 1203-1210. ? 2001 by The Mycological Society of America, Lawrence, KS 66044-8897 ... Fusarium andiyazi sp. nov., a new species from sorghum ... Walter F. 0. Marasas John P. Rheeder Programme on Mycotoxins and Experimental ...