Fusarium subtropicale, sp. nov., a novel nivalenol mycotoxin–producing species isolated from barley (Hordeum vulgare) in Brazil and sister to F. praegraminearum

Pereira, Carolina Bertuzzi; Ward, Todd J.; Tessmann, Dauri José; Ponte, Emerson M. Del; Laraba, Imane; Vaughan, Martha; McCormick, Susan P.; Busman, Mark; Kelly, Amy C.; Proctor, Robert H.; O’Donnell, Kerry

doi:10.1080/00275514.2018.1512296

Cited by 13 publications

(7 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Graminearum Clade. The Graminearum Clade isolates investigated here have been the subject of several detailed phylogenetic studies [6,9,10,38,81]. Nineteen of the 23 species in this clade were discovered in prior GCPSR studies over the past two decades and all have been formally described except for NRRL 34461 F. sp.…”

Section: Phylogenetic Diversity and Trichothecene Potential Of Fsamsc Strainsmentioning

confidence: 99%

“…Our data are consistent with other reports that evaluated these species on other wheat cultivars including cv. Norm [6,11,41,83]. Even so, toxin analyses of the inoculated wheat heads revealed that these species were all toxigenic and made NIV in planta.…”

Section: Plos Onementioning

confidence: 99%

“…Genealogical Concordance Phylogenetic Species Recognition (GCPSR; [4]) based analyses have resolved Fusarium into at least 300 phylogenetically distinct species distributed among 23 monophyletic species complexes and several single-species lineages [1 and references therein,3]. With 41 named species, the F. sambucinum species complex (FSAMSC) is among the most species-rich lineages within Fusarium [3,[5][6][7][8]. This species complex comprises some of the most destructive agricultural pathogens, including members of the F. graminearum species complex and closely related species (hereafter Graminearum Clade; FSAMSC-1 sensu [9]), known to cause Fusarium head blight (FHB) outbreaks on small-grain cereals worldwide [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex

et al. 2021

Self Cite

View full text Add to dashboard Cite

The Fusarium sambucinum species complex (FSAMSC) is one of the most taxonomically challenging groups of fusaria, comprising prominent mycotoxigenic plant pathogens and other species with various lifestyles. Among toxins produced by members of the FSAMSC, trichothecenes pose the most significant threat to public health. Herein a global collection of 171 strains, originating from diverse hosts or substrates, were selected to represent FSAMSC diversity. This strain collection was used to assess their species diversity, evaluate their potential to produce trichothecenes, and cause disease on wheat. Maximum likelihood and Bayesian analyses of a combined 3-gene dataset used to infer evolutionary relationships revealed that the 171 strains originally received as 48 species represent 74 genealogically exclusive phylogenetically distinct species distributed among six strongly supported clades: Brachygibbosum, Graminearum, Longipes, Novel, Sambucinum, and Sporotrichioides. Most of the strains produced trichothecenes in vitro but varied in type, indicating that the six clades correspond to type A, type B, or both types of trichothecene-producing lineages. Furthermore, five strains representing two putative novel species within the Sambucinum Clade produced two newly discovered type A trichothecenes, 15-keto NX-2 and 15-keto NX-3. Strains of the two putatively novel species together with members of the Graminearum Clade were aggressive toward wheat when tested for pathogenicity on heads of the susceptible cultivar Apogee. In planta, the Graminearum Clade strains produced nivalenol or deoxynivalenol and the aggressive Sambucinum Clade strains synthesized NX-3 and 15-keto NX-3. Other strains within the Brachygibbosum, Longipes, Novel, Sambucinum, and Sporotrichioides Clades were nonpathogenic or could infect the inoculated floret without spreading within the head. Moreover, most of these strains did not produce any toxin in the inoculated spikelets. These data highlight aggressiveness toward wheat appears to be influenced by the type of toxin produced and that it is not limited to members of the Graminearum Clade.

show abstract

Section: Phylogenetic Diversity and Trichothecene Potential Of Fsamsc Strainsmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…It should be noted that four species basal to the FGSC, in what is now recognized as the Graminearum Clade (Laraba et al 2021), were discovered and described during roughly the same period. These included F. pseudograminearum, which was previously reported as the Group 1 population of F. graminearum (Aoki and O'Donnell 1999), F. dactylidis from orchard grass in Oregon and New Zealand (Aoki et al 2015), F. praegraminearum from maize field litter in New Zealand (Gräfenhan et al 2016), and F. subtropicale from barley in Brazil (Pereira et al 2018). During the second phase, these advancements were widely adopted, including use of binomials for the phylospecies and genotyping tools for large-scale surveys, leading to a rapid rise in the number of studies published each year.…”

Section: Discussionmentioning

confidence: 99%

“…This extensively validated and high-throughput method relies on probes targeting nucleotide variation within multiple genes to simultaneously determine the species identity and trichothecene chemotype of isolates (Ward et al 2008). The MLGT method has also enabled the discovery of novel FGSC and F. graminearum Clade species (sensu Laraba et al 2021) and interspecific hybrids (Boutigny et al 2011(Boutigny et al , 2014Pereira et al 2018;Sarver et al 2011). A smaller number of studies have employed fragment analysis of polymorphic markers (RFLP, AFLP or ISSR; n = 1,686; 10.3%), and polymerase chain reaction (PCR) with species-specific primers (e.g.…”

Section: Methodology For Species and Chemotype Identificationmentioning

confidence: 99%

Fusarium graminearum species complex: A bibliographic analysis and web-accessible database for global mapping of species and trichothecene toxin chemotype

Ponte¹,

Moreira²,

Ward³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

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. We conducted a systematic review of peer-reviewed studies reporting species within the Fusarium graminearum species complex (FGSC) by creating two main data tables. The first contained data at the article level including bibliographic, geographic, methodological (ID methods), host of origin and species, while the second data table contained information at the strain level such as publication, isolate code(s), host/substrate, year of isolation, geographical coordinates, species and trichothecene genotype. Analyses of the bibliographic data obtained from 123 publications from 2000 to 2021 by 498 unique authors and published in 40 journals are summarized. We describe the frequency of species and chemotypes for 16,274 strains for which geographical information was available, either provided as raw data or extracted from the publications, and sampled across six continents and 32 countries. The database and interactive interface are publicly available allowing for searches, summarization and mapping of strains according to several criteria including article, country, host, species and trichothecene genotype. The database will be updated continuously and should be useful for guiding future surveys and exploring factors associated with species distribution such as climate and land use. Authors are encouraged to submit data at the strain level to the database, which is accessible at https://fgsc.netlify.app/.

show abstract

Mycotoxin metabolites of fungi

Singh

Kumar

Dhanjal

et al. 2021

New and Future Developments in Microbial Biotechnology and Bioengineering

View full text Add to dashboard Cite

Fusarium subtropicale, sp. nov., a novel nivalenol mycotoxin–producing species isolated from barley (Hordeum vulgare) in Brazil and sister to F. praegraminearum

Cited by 13 publications

References 35 publications

Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex

Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex

Fusarium graminearum species complex: A bibliographic analysis and web-accessible database for global mapping of species and trichothecene toxin chemotype

Mycotoxin metabolites of fungi

Contact Info

Product

Resources

About