D M Geiser

Summary

Affiliation: Pennsylvania State University
Country: USA

Publications

  1. ncbi request reprint The phylogenetics of mycotoxin and sclerotium production in Aspergillus flavus and Aspergillus oryzae
    D M Geiser
    Department of Plant Pathology, The Pennsylvania State University, 204 Buckhout Laboratory, University Park, Pennsylvania 16802 4507, USA
    Fungal Genet Biol 31:169-79. 2000
  2. doi request reprint Sexual structures in Aspergillus: morphology, importance and genomics
    David M Geiser
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802, USA
    Med Mycol 47:S21-6. 2009
  3. ncbi request reprint Eurotiomycetes: Eurotiomycetidae and Chaetothyriomycetidae
    David M Geiser
    Department of Plant Pathology, Pennsylvania State University, University Park 16802, USA
    Mycologia 98:1053-64. 2006
  4. ncbi request reprint Gibberella xylarioides (anamorph: Fusarium xylarioides), a causative agent of coffee wilt disease in Africa, is a previously unrecognized member of the G. fujikuroi species complex
    David M Geiser
    Department of Plant Pathology, Pennsylvania State University, University Park 16802, USA
    Mycologia 97:191-201. 2005
  5. ncbi request reprint Systematics of the genus Sphaerobolus based on molecular and morphological data, with the description of Sphaerobolus ingoldii sp. nov
    Jozsef Geml
    Department of Plant Pathology and Institute of Molecular Evolutionary Genetics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
    Mycologia 97:680-94. 2005
  6. doi request reprint Multilocus phylogenetic diversity of Fusarium avenaceum pathogenic on lisianthus
    F A Nalim
    Department of Plant Pathology, Pennsylvania State University, University Park 16802, USA
    Phytopathology 99:462-8. 2009
  7. pmc Members of the Fusarium solani species complex that cause infections in both humans and plants are common in the environment
    Ning Zhang
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802, USA
    J Clin Microbiol 44:2186-90. 2006
  8. ncbi request reprint Multilocus phylogenetic structure within the Trichoderma harzianum/Hypocrea lixii complex
    Priscila Chaverri
    Department of Plant Pathology, The Pennsylvania State University, Buckhout Laboratory, 16802, University Park, PA, USA
    Mol Phylogenet Evol 27:302-13. 2003
  9. ncbi request reprint Phylogenetic analyses reveal deeply divergent species lineages in the genus Sphaerobolus (Phallales: Basidiomycota)
    Jozsef Geml
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA, USA
    Mol Phylogenet Evol 35:313-22. 2005
  10. ncbi request reprint A metagenomic survey of microbes in honey bee colony collapse disorder
    Diana L Cox-Foster
    Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA
    Science 318:283-7. 2007

Collaborators

Detail Information

Publications21

  1. ncbi request reprint The phylogenetics of mycotoxin and sclerotium production in Aspergillus flavus and Aspergillus oryzae
    D M Geiser
    Department of Plant Pathology, The Pennsylvania State University, 204 Buckhout Laboratory, University Park, Pennsylvania 16802 4507, USA
    Fungal Genet Biol 31:169-79. 2000
    ..Some non-aflatoxin-producing isolates of group I had an omt12 allele that was identical to that found in isolates of A. oryzae...
  2. doi request reprint Sexual structures in Aspergillus: morphology, importance and genomics
    David M Geiser
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802, USA
    Med Mycol 47:S21-6. 2009
    ....
  3. ncbi request reprint Eurotiomycetes: Eurotiomycetidae and Chaetothyriomycetidae
    David M Geiser
    Department of Plant Pathology, Pennsylvania State University, University Park 16802, USA
    Mycologia 98:1053-64. 2006
    ..Due to their broad importance in basic research, industry and public health, several genome projects have focused on species in Onygenales and Eurotiales...
  4. ncbi request reprint Gibberella xylarioides (anamorph: Fusarium xylarioides), a causative agent of coffee wilt disease in Africa, is a previously unrecognized member of the G. fujikuroi species complex
    David M Geiser
    Department of Plant Pathology, Pennsylvania State University, University Park 16802, USA
    Mycologia 97:191-201. 2005
    ..Our finding of unrelated species associated with coffee wilt disease has important implications regarding its epidemiology, etiology and control...
  5. ncbi request reprint Systematics of the genus Sphaerobolus based on molecular and morphological data, with the description of Sphaerobolus ingoldii sp. nov
    Jozsef Geml
    Department of Plant Pathology and Institute of Molecular Evolutionary Genetics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
    Mycologia 97:680-94. 2005
    ..iowensis and S. stellatus indicated little phylogeographic structure in either species, perhaps due to heavy movement mediated by human activities...
  6. doi request reprint Multilocus phylogenetic diversity of Fusarium avenaceum pathogenic on lisianthus
    F A Nalim
    Department of Plant Pathology, Pennsylvania State University, University Park 16802, USA
    Phytopathology 99:462-8. 2009
    ..avenaceum may be pathogenic on lisianthus regardless of its phylogenetic origin. These findings have management implications and suggest that any host that supports F. avenaceum may serve as a source of inoculum for lisianthus growers...
  7. pmc Members of the Fusarium solani species complex that cause infections in both humans and plants are common in the environment
    Ning Zhang
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802, USA
    J Clin Microbiol 44:2186-90. 2006
    ..The major finding of this study is that FSSC-associated mycoses of humans and other animals have origins in a broad phylogenetic spectrum, indicating widespread ability to cause infection in this diverse species complex...
  8. ncbi request reprint Multilocus phylogenetic structure within the Trichoderma harzianum/Hypocrea lixii complex
    Priscila Chaverri
    Department of Plant Pathology, The Pennsylvania State University, Buckhout Laboratory, 16802, University Park, PA, USA
    Mol Phylogenet Evol 27:302-13. 2003
    ..harzianum/H. lixii is a complex of independent monophyletic lineages, but no diagnostic morphological distinctions were identified that justify formal taxonomic recognition for the different lineages...
  9. ncbi request reprint Phylogenetic analyses reveal deeply divergent species lineages in the genus Sphaerobolus (Phallales: Basidiomycota)
    Jozsef Geml
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA, USA
    Mol Phylogenet Evol 35:313-22. 2005
    ..stellatus than to S. iowensis...
  10. ncbi request reprint A metagenomic survey of microbes in honey bee colony collapse disorder
    Diana L Cox-Foster
    Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA
    Science 318:283-7. 2007
    ..One organism, Israeli acute paralysis virus of bees, was strongly correlated with CCD...
  11. ncbi request reprint A multi-locus phylogeny for Phytophthora utilizing markers derived from complete genome sequences
    Jaime E Blair
    Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802, USA
    Fungal Genet Biol 45:266-77. 2008
    ..A more resolved phylogeny of Phytophthora species will allow for better interpretations of the overall evolutionary history of the genus...
  12. ncbi request reprint Molecular evidence for the early colonization of land by fungi and plants
    D S Heckman
    Astrobiology Research Center and Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
    Science 293:1129-33. 2001
    ....
  13. pmc Molecular phylogenetic diversity, multilocus haplotype nomenclature, and in vitro antifungal resistance within the Fusarium solani species complex
    Kerry O'Donnell
    Microbial Genomics and Bioprocessing Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U S Department of Agriculture, 1815 North University Street, Peoria, IL 61604 3999, USA
    J Clin Microbiol 46:2477-90. 2008
    ..The in vitro activities of 10 antifungals tested against 19 isolates representing 18 species that span the breadth of the FSSC phylogeny show that members of this complex are broadly resistant to these drugs...
  14. ncbi request reprint A five-gene phylogeny of Pezizomycotina
    Joseph W Spatafora
    Department of Botany and Plant Pathology, Oregon State University, Corvallis 97331, USA
    Mycologia 98:1018-28. 2006
    ..Within Leotiomyceta, the supraclass clades of Leotiomycetes s.s. plus Sordariomycetes and Arthoniomycetes plus Dothideomycetes were resolved with moderate support...
  15. ncbi request reprint Genealogical concordance between the mating type locus and seven other nuclear genes supports formal recognition of nine phylogenetically distinct species within the Fusarium graminearum clade
    Kerry O'Donnell
    National Center for Agricultural Utilization Research, US Department of Agriculture, Agricultural Research Service, Peoria, IL 61604, USA
    Fungal Genet Biol 41:600-23. 2004
    ..Species rank is formally proposed for the eight unnamed species within the Fg clade using fixed nucleotide characters...
  16. pmc Genetic diversity of human pathogenic members of the Fusarium oxysporum complex inferred from multilocus DNA sequence data and amplified fragment length polymorphism analyses: evidence for the recent dispersion of a geographically widespread clonal lineag
    Kerry O'Donnell
    National Center for Agricultural Utilization Research, U S Department of Agriculture, Peoria, IL 61604 3999, USA
    J Clin Microbiol 42:5109-20. 2004
    ..S. hospitals, providing support for the hypothesis that hospitals may serve as a reservoir for nosocomial fusarial infections...
  17. ncbi request reprint An adaptive evolutionary shift in Fusarium head blight pathogen populations is driving the rapid spread of more toxigenic Fusarium graminearum in North America
    Todd J Ward
    Microbial Genomics and Bioprocessing Research Unit, Agricultural Research Service, United States Department of Agriculture, Peoria, IL 61604, USA
    Fungal Genet Biol 45:473-84. 2008
    ..The discovery of this previously unrecognized pathogen diversity has significant implications for food safety and cereal production in North America...
  18. ncbi request reprint A higher-level phylogenetic classification of the Fungi
    David S Hibbett
    Biology Department, Clark University, Worcester, MA 01610, USA
    Mycol Res 111:509-47. 2007
    ..Several genera of 'basal' Fungi of uncertain position are not placed in any higher taxa, including Basidiobolus, Caulochytrium, Olpidium, and Rozella...
  19. pmc Phylogenetic diversity and microsphere array-based genotyping of human pathogenic Fusaria, including isolates from the multistate contact lens-associated U.S. keratitis outbreaks of 2005 and 2006
    Kerry O'Donnell
    Microbial Genomics and Bioprocessing Research Unit, Agricultural Research Service, U S Department of Agriculture, 1815 North University Street, Peoria, IL 61604 3999, USA
    J Clin Microbiol 45:2235-48. 2007
    ..The high degree of phylogenetic diversity represented among the corneal isolates is consistent with multiple sources of contamination...
  20. ncbi request reprint Reconstructing the early evolution of Fungi using a six-gene phylogeny
    Timothy Y James
    Department of Biology, Duke University, Durham, North Carolina 27708 0338, USA
    Nature 443:818-22. 2006
    ..The enigmatic microsporidia seem to be derived from an endoparasitic chytrid ancestor similar to Rozella allomycis, on the earliest diverging branch of the fungal phylogenetic tree...
  21. ncbi request reprint Global molecular surveillance reveals novel Fusarium head blight species and trichothecene toxin diversity
    David E Starkey
    Microbial Genomics and Bioprocessing Research Unit, National Center for Agricultural Utilization Research, U S Department of Agriculture, Agricultural Research Service, Peoria, IL 61604, USA
    Fungal Genet Biol 44:1191-204. 2007
    ..S. In addition, we describe a highly divergent population of F. graminearum from the Gulf Coast of the U.S., and divergent isolates of F. acaciae-mearnsii from Australia and South Africa...