Todd J. Ward
YOU?
Author Swipe
View article: Draft genome sequences of <i>Listeria monocytogenes</i> strains from human listeriosis in Sweden harboring premature stop codons in the virulence determinant <i>inlA</i>
Draft genome sequences of <i>Listeria monocytogenes</i> strains from human listeriosis in Sweden harboring premature stop codons in the virulence determinant <i>inlA</i> Open
Premature stop codons in the internalin virulence determinant inlA are common in serotype 1/2a Listeria monocytogenes from food/food processing environments but rare among human clinical isolates. Here, we report the genome sequences of se…
View article: Draft genome sequences of a historical collection of <i>Listeria monocytogenes</i> from humans and other sources, 1926–1964
Draft genome sequences of a historical collection of <i>Listeria monocytogenes</i> from humans and other sources, 1926–1964 Open
Listeria monocytogenes can persistently contaminate food processing environments and tolerate sanitizers. Most sequenced strains are from clinical and environmental sources in the contemporary era, with relatively few prior to extensive fo…
View article: Population structure and genetic diversity of <i>Fusarium graminearum</i> from southwestern Russia and the Russian Far East as compared with northern Europe and North America
Population structure and genetic diversity of <i>Fusarium graminearum</i> from southwestern Russia and the Russian Far East as compared with northern Europe and North America Open
Genetic variation at variable number tandem repeat (VNTR) markers was used to assess population structure and diversity among 296 Fusarium graminearum isolates from northern Europe (Finland, northwestern Russia, and Norway), southern Europ…
View article: NX Trichothecenes Are Required for <i>Fusarium graminearum</i> Infection of Wheat
NX Trichothecenes Are Required for <i>Fusarium graminearum</i> Infection of Wheat Open
Fusarium graminearum causes Fusarium head blight (FHB) on wheat and barley and contaminates grains with various mycotoxins that are toxic to humans and animals. Deoxynivalenol (DON), a type B trichothecene, is an essential virulence factor…
View article: Population structure and genetic diversity of <i>Fusarium graminearum</i> from southwestern Russia and the Russian Far East as compared with northern Europe and North America
Population structure and genetic diversity of <i>Fusarium graminearum</i> from southwestern Russia and the Russian Far East as compared with northern Europe and North America Open
Genetic variation at variable number tandem repeat (VNTR) markers was used to assess population structure and diversity among 296 Fusarium graminearum isolates from northern Europe (Finland, northwestern Russia, and Norway), southern Europ…
View article: The distribution and type B trichothecene chemotype of Fusarium species associated with head blight of wheat in South Africa during 2008 and 2009
The distribution and type B trichothecene chemotype of Fusarium species associated with head blight of wheat in South Africa during 2008 and 2009 Open
Fusarium head blight (FHB) of wheat occurs commonly in irrigation regions of South Africa and less frequently in dryland regions. Previous surveys of Fusarium species causing FHB identified isolates using morphological characters only. Thi…
View article: <i>Fusarium graminearum</i> Species Complex: A Bibliographic Analysis and Web-Accessible Database for Global Mapping of Species and Trichothecene Toxin Chemotypes
<i>Fusarium graminearum</i> Species Complex: A Bibliographic Analysis and Web-Accessible Database for Global Mapping of Species and Trichothecene Toxin Chemotypes Open
Fusarium graminearum is ranked among the five most destructive fungal pathogens that affect agroecosystems. It causes floral diseases in small grain cereals including wheat, barley, and oats, as well as maize and rice. We conducted a syste…
View article: Fusarium graminearum species complex: A bibliographic analysis and web-accessible database for global mapping of species and trichothecene toxin chemotype
Fusarium graminearum species complex: A bibliographic analysis and web-accessible database for global mapping of species and trichothecene toxin chemotype Open
Fusarium graminearum is ranked among the five most destructive fungal pathogens that affect agroecosystems. It causes floral diseases in small grain cereals including wheat, barley and oats, as well as summer crops such as maize and rice. …
View article: No to <i>Neocosmospora</i> : Phylogenomic and Practical Reasons for Continued Inclusion of the Fusarium solani Species Complex in the Genus <i>Fusarium</i>
No to <i>Neocosmospora</i> : Phylogenomic and Practical Reasons for Continued Inclusion of the Fusarium solani Species Complex in the Genus <i>Fusarium</i> Open
This article is to alert medical mycologists and infectious disease specialists of recent name changes of medically important species of the filamentous mold Fusarium . Fusarium species can cause localized and life-threating infections in …
View article: Five-year Survey Uncovers Extensive Diversity and Temporal Fluctuations Among Fusarium Head Blight Pathogens of Wheat and Barley in Brazil
Five-year Survey Uncovers Extensive Diversity and Temporal Fluctuations Among Fusarium Head Blight Pathogens of Wheat and Barley in Brazil Open
We conducted a five-year survey (2011–2015) of barley and wheat fields in Paraná state, Brazil, analyzing 754 Fusarium isolates from Fusarium head blight (FHB)-symptomatic spikes. Multilocus genotyping and TEF-1α gene sequence analyses con…
View article: Intrapopulation Antagonism Can Reduce the Growth and Aggressiveness of the Wheat Head Blight Pathogen <i>Fusarium graminearum</i>
Intrapopulation Antagonism Can Reduce the Growth and Aggressiveness of the Wheat Head Blight Pathogen <i>Fusarium graminearum</i> Open
Fusarium graminearum is a causal agent of Fusarium head blight (FHB), a disease that reduces yield and quality of cereal crops and contaminates grain with mycotoxins that pose health risks to humans and livestock. Interpopulation antagonis…
View article: Research compendium: Fusarium spp. in wheat and barley Paraná State Brazil
Research compendium: Fusarium spp. in wheat and barley Paraná State Brazil Open
Repository for data and codes of the research
View article: Preserving US microbe collections sparks future discoveries
Preserving US microbe collections sparks future discoveries Open
Summary Collections of micro-organisms are a crucial element of life science research infrastructure but are vulnerable to loss and damage caused by natural or man-made disasters, the untimely death or retirement of personnel, or the loss …
View article: Synergistic Phytotoxic Effects of Culmorin and Trichothecene Mycotoxins
Synergistic Phytotoxic Effects of Culmorin and Trichothecene Mycotoxins Open
Species of the fungus Fusarium cause Fusarium head blight (FHB) of cereal crops and contaminate grain with sesquiterpenoid mycotoxins, including culmorin (CUL) and trichothecenes. While the phytotoxicity of trichothecenes, such as deoxyniv…
View article: <i>Fusarium graminearum</i> arabinanase (Arb93B) Enhances Wheat Head Blight Susceptibility by Suppressing Plant Immunity
<i>Fusarium graminearum</i> arabinanase (Arb93B) Enhances Wheat Head Blight Susceptibility by Suppressing Plant Immunity Open
Fusarium head blight (FHB) of wheat and barley caused by the fungus Fusarium graminearum reduces crop yield and contaminates grain with mycotoxins. In this study, we investigated two exo-1,5-α-L-arabinanases (Arb93A and Arb93B) secreted by…
View article: Characterization of a Fusarium graminearum Salicylate Hydroxylase
Characterization of a Fusarium graminearum Salicylate Hydroxylase Open
Salicylic acid (SA) plays an important role in regulating plant defense responses against pathogens. However, pathogens have evolved ways to manipulate plant SA-mediated defense signaling. Fusarium graminearum causes Fusarium head blight (…
View article: Marasas et al. 1984 “Toxigenic<i>Fusarium</i>Species: Identity and Mycotoxicology” revisited
Marasas et al. 1984 “Toxigenic<i>Fusarium</i>Species: Identity and Mycotoxicology” revisited Open
This study was conducted to determine the species identity and mycotoxin potential of 158 Fusarium strains originally archived in the South African Medical Research Council’s Mycotoxigenic Fungal Collection (MRC) that were reported to comp…
View article: Draft Whole-Genome Sequences of Seven Listeria monocytogenes Strains with Variations in Virulence and Stress Responses
Draft Whole-Genome Sequences of Seven Listeria monocytogenes Strains with Variations in Virulence and Stress Responses Open
Listeria monocytogenes is an important foodborne pathogen that causes listeriosis. Here, we report the draft genome sequences of seven L. monocytogenes strains isolated from food, environmental, and clinical sources.
View article: Multilingual Neural Machine Translation with Task-Specific Attention
Multilingual Neural Machine Translation with Task-Specific Attention Open
Multilingual machine translation addresses the task of translating between multiple source and target languages. We propose task-specific attention models, a simple but effective technique for improving the quality of sequence-to-sequence …
View article: Listeria monocytogenes Source Distribution Analysis Indicates Regional Heterogeneity and Ecological Niche Preference among Serotype 4b Clones
Listeria monocytogenes Source Distribution Analysis Indicates Regional Heterogeneity and Ecological Niche Preference among Serotype 4b Clones Open
Biodiversity analysis of the foodborne pathogen Listeria monocytogenes recently revealed four serotype 4b major hypervirulent clonal complexes (CCs), i.e., CC1, CC2, CC4, and CC6. Hypervirulence was indicated by overrepresentation of these…
View article: Population genomics of Fusarium graminearum reveals signatures of divergent evolution within a major cereal pathogen
Population genomics of Fusarium graminearum reveals signatures of divergent evolution within a major cereal pathogen Open
The cereal pathogen Fusarium graminearum is the primary cause of Fusarium head blight (FHB) and a significant threat to food safety and crop production. To elucidate population structure and identify genomic targets of selection within maj…
View article: Marasas et al. 1984 “Toxigenic <i>Fusarium</i> Species: Identity and Mycotoxicology” revisited
Marasas et al. 1984 “Toxigenic <i>Fusarium</i> Species: Identity and Mycotoxicology” revisited Open
This study was conducted to determine the species identity and mycotoxin potential of 158 Fusarium strains originally archived in the South African Medical Research Council’s Mycotoxigenic Fungal Collection (MRC) that were reported to comp…
View article: One Fungus, One Name: Defining the Genus Fusarium in a Scientifically Robust Way That Preserves Longstanding Use
One Fungus, One Name: Defining the Genus Fusarium in a Scientifically Robust Way That Preserves Longstanding Use Open
In this letter, we advocate recognizing the genus Fusarium as the sole name for a group that includes virtually all Fusarium species of importance in plant pathology, mycotoxicology, medicine, and basic research. This phylogenetically guid…
View article: The Arsenic Resistance-Associated Listeria Genomic Island LGI2 Exhibits Sequence and Integration Site Diversity and a Propensity for Three Listeria monocytogenes Clones with Enhanced Virulence
The Arsenic Resistance-Associated Listeria Genomic Island LGI2 Exhibits Sequence and Integration Site Diversity and a Propensity for Three Listeria monocytogenes Clones with Enhanced Virulence Open
In the foodborne pathogen Listeria monocytogenes , arsenic resistance is encountered primarily in serotype 4b clones considered to have enhanced virulence and is associated with an arsenic resistance gene cluster within a 35-kb chromosomal…
View article: Genome Sequences of Listeria monocytogenes Strains with Resistance to Arsenic
Genome Sequences of Listeria monocytogenes Strains with Resistance to Arsenic Open
Listeria monocytogenes frequently exhibits resistance to arsenic. We report here the draft genome sequences of eight genetically diverse arsenic-resistant L. monocytogenes strains from human listeriosis and food-associated environments. Th…
View article: Draft Genome Sequences of Two Historical Listeria monocytogenes Strains from Human Listeriosis Cases in 1933
Draft Genome Sequences of Two Historical Listeria monocytogenes Strains from Human Listeriosis Cases in 1933 Open
We report here the draft genome sequences of two Listeria monocytogenes strains from some of the earliest reported cases of human listeriosis in North America. The strains were isolated in 1933 from patients in Massachusetts and Connecticu…
View article: Isolation and characterization of atypical <i>Listeria monocytogenes</i> associated with a canine urinary tract infection
Isolation and characterization of atypical <i>Listeria monocytogenes</i> associated with a canine urinary tract infection Open
Listeria monocytogenes, a well-described cause of encephalitis and abortion in ruminants and of food-borne illness in humans, is rarely associated with disease in companion animals. A case of urinary tract infection associated with an atyp…
View article: Composition and toxigenic potential of the <i>Fusarium graminearum</i> species complex from maize ears, stalks and stubble in Brazil
Composition and toxigenic potential of the <i>Fusarium graminearum</i> species complex from maize ears, stalks and stubble in Brazil Open
A large collection ( n = 539) of Fusarium graminearum species complex ( FGSC ) isolates was obtained from Brazilian maize, and collections formed according to geography and maize part: (i) kernel ( n = 110) from south and south‐central Bra…
View article: Determination of Evolutionary Relationships of Outbreak-Associated Listeria monocytogenes Strains of Serotypes 1/2a and 1/2b by Whole-Genome Sequencing
Determination of Evolutionary Relationships of Outbreak-Associated Listeria monocytogenes Strains of Serotypes 1/2a and 1/2b by Whole-Genome Sequencing Open
We used whole-genome sequencing to determine evolutionary relationships among 20 outbreak-associated clinical isolates of Listeria monocytogenes serotypes 1/2a and 1/2b. Isolates from 6 of 11 outbreaks fell outside the clonal groups or “ep…