Skip to content
DraconiticResearch
Search Sources API
203,203 studies31 sourcesUpdated 9 min ago
Peer-reviewedCC BYToxins

Effect of Photoperiod on Growth and Production of Trichothecene Mycotoxins in Fusarium graminearum.

  • William T Hay1
  • Susan P McCormick1
  • Nathan D Kemp1
  • Mark Busman1
  • Daren W Brown1
  • Hye-Seon Kim1
  • Carson M Andorf2
  • Stephen F Harding2
  • Robert H Proctor1
  • Martha M Vaughan1
  1. 1USDA, Mycotoxin Prevention and Applied Microbiology Unit, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 N. University Street, Peoria, IL 61604, USA.
  2. 2USDA, Agricultural Research Service, Corn Insects and Crop Genetics Research Unit, Iowa State University, Ames, IA 50011, USA.
Read full textPDFDOICite

Abstract

Fusarium graminearum is a plant-pathogenic and mycotoxin-producing fungus of major concern to cereal production worldwide. There are genetically distinct populations of the pathogen that are associated with different trichothecene mycotoxin profiles. A recent study has identified key differences in genes associated with light response and circadian regulation among the major North American F. graminearum populations. It is currently unclear how these populations differ in their response to photoperiod (hours of light per day). Therefore, we evaluated the effects of photoperiod on growth and trichothecene production in isolates representing the three most prominent North American populations (NA1, NA2 and NA3) of F. graminearum. Photoperiod had a profound effect on fungal growth, colony morphology, and trichothecene production. This effect varied by substrate (i.e., fungal growth medium or plant host) and among pathogen populations. Photoperiod had a considerable impact on inoculated corn seedlings, and total trichothecene production was substantially greater (2-25×) in inoculated corn compared with wheat. Photoperiod had little effect on trichothecene production in inoculated wheat seedlings, except for NA3. Differences in trichothecene production were not due to differences in fungal biomass, but likely the result of photoperiod-dependent gene expression changes to trichothecene biosynthesis.

Related

  1. Fungistatic and non-fungistatic soils as reservoirs of bacteria antagonistic to Fusarium graminearum
    Irena Todorović, Danis Abrouk, Martina Kyselková +6
    RhizospherePeer-reviewedLicence not statedMicrobiologyHAL
  2. Comparative analysis of 15 chromosome-scale near T2T assemblies of Brazilian Fusarium graminearum isolates
    E. Kroll, A. M. Wood, C. P. Nicolli +5
    bioRxivPreprintCC BYFull textBioinformatics & computational biologybioRxiv
  3. Stability and Transfer of Fusarium Mycotoxins During Oat Processing: A Review.
    Irene Teixido-Orries, Francisco Molino, Carol Verheecke-Vaessen +2
    Foods (Basel, Switzerland)Peer-reviewedCC BYFull textPlant biologyEurope PMC
  4. Deletion of Major Endoxylanase Genes in Fusarium graminearum Uncovers Distinct Virulence Phenotypes Influenced by the Genetic Background
    Arianna Panichi, Silvana Odorizzi, Carla Castiglioni +5
    Molecular Plant PathologyPeer-reviewedCC BY 4.0Full textCell biologyPMC
  5. Sensitivity of Fusarium graminearum to propiconazole and potential resistance mechanisms.
    Feng Zhou, Haichuan Su, Jialin An +6
    BMC microbiologyPeer-reviewedCC BY-NC-NDFull textEcologyEurope PMCPMC

Cite

BibTeXRIS
BibTeX
@article{hay2026effect,
  title = {{Effect of Photoperiod on Growth and Production of Trichothecene Mycotoxins in Fusarium graminearum.}},
  author = {William T Hay and Susan P McCormick and Nathan D Kemp and Mark Busman and Daren W Brown and Hye-Seon Kim and Carson M Andorf and Stephen F Harding and Robert H Proctor and Martha M Vaughan},
  journal = {Toxins},
  year = {2026},
  month = oct,
  doi = {10.3390/toxins18100459},
  url = {https://europepmc.org/article/MED/42931550},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Effect of Photoperiod on Growth and Production of Trichothecene Mycotoxins in Fusarium graminearum.
AU  - William T Hay
AU  - Susan P McCormick
AU  - Nathan D Kemp
AU  - Mark Busman
AU  - Daren W Brown
AU  - Hye-Seon Kim
AU  - Carson M Andorf
AU  - Stephen F Harding
AU  - Robert H Proctor
AU  - Martha M Vaughan
PY  - 2026
DA  - 2026/10/21
JO  - Toxins
DO  - 10.3390/toxins18100459
UR  - https://europepmc.org/article/MED/42931550
AB  - Fusarium graminearum is a plant-pathogenic and mycotoxin-producing fungus of major concern to cereal production worldwide. There are genetically distinct populations of the pathogen that are associated with different trichothecene mycotoxin profiles. A recent study has identified key differences in genes associated with light response and circadian regulation among the major North American F. graminearum populations. It is currently unclear how these populations differ in their response to photoperiod (hours of light per day). Therefore, we evaluated the effects of photoperiod on growth and trichothecene production in isolates representing the three most prominent North American populations (NA1, NA2 and NA3) of F. graminearum. Photoperiod had a profound effect on fungal growth, colony morphology, and trichothecene production. This effect varied by substrate (i.e., fungal growth medium or plant host) and among pathogen populations. Photoperiod had a considerable impact on inoculated corn seedlings, and total trichothecene production was substantially greater (2-25×) in inoculated corn compared with wheat. Photoperiod had little effect on trichothecene production in inoculated wheat seedlings, except for NA3. Differences in trichothecene production were not due to differences in fungal biomass, but likely the result of photoperiod-dependent gene expression changes to trichothecene biosynthesis.
SN  - 2072-6651
ER  -