Infection timing affects
                    Fusarium poae
                    colonization of bread wheat spikes and mycotoxin accumulation in the grain

Francesco Tini; Lorenzo Covarelli; Christina Cowger; Michael Sulyok; Paolo Benincasa; Giovanni Beccari

doi:10.1002/jsfa.12002

journal article Open Access Jun 02, 2022

Infection timing affects Fusarium poae colonization of bread wheat spikes and mycotoxin accumulation in the grain

Francesco Tini

Lorenzo Covarelli

Christina Cowger Michael Sulyok

Paolo Benincasa

Giovanni Beccari

Journal of the Science of Food and Agriculture Vol. 102 No. 14 pp. 6358-6372 · Wiley

View at Publisher Save 10.1002/jsfa.12002

Abstract

Abstract

BACKGROUND

Fusarium poae
is one of the most common
Fusarium
head blight (FHB) causal agents in wheat. This species can biosynthesize a wide range of mycotoxins, in particular nivalenol (NIV). In FHB epidemiology, infection timing is important for disease occurrence, kernel development, symptom appearance and mycotoxin accumulation in grain. The present study explored, both in a controlled environment and in a 2‐year field plot experiment in Central Italy, the influence of five infection timings (from beginning of flowering to medium milk growth stage) on
F. poae
colonization and mycotoxin accumulation in bread wheat spikes (spring cv. A416 and winter cv. Ambrogio).

RESULTS

Both climate chamber and field experiments showed that early infection timings (from beginning of flowering to full flowering) especially favoured
F. poae
colonization and accumulation of its mycotoxins (particularly NIV) in grain. By contrast, later infection timings (watery ripe and medium milk) reduced
F. poae
development and mycotoxin levels. The time window of host susceptibility in the field was shorter than that observed under controlled conditions. Symptom expression in kernels also differed among infection timings. In general,
F. poae
biomass was higher in the chaff than in the grain.

CONCLUSION

These results enhance knowledge of a common member of the FHB complex worldwide, and could be useful in forecasting the risk of
F. poae
infection and mycotoxin contamination. © 2022 The Authors.
Journal of The Science of Food and Agriculture
published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Details

Published: Jun 02, 2022
Vol/Issue: 102(14)
Pages: 6358-6372
License: View

Authors

F

Francesco Tini

Department of Agricultural, Food and Environmental Sciences University of Perugia Perugia Italy

L

Lorenzo Covarelli

Department of Agricultural, Food and Environmental Sciences University of Perugia Perugia Italy

C

Christina Cowger

United States Department of Agriculture‐Agricultural Research Service, Department of Entomology and Plant Pathology North Carolina State University 27695 Raleigh USA

M

Michael Sulyok

University of Natural Resources and Life Sciences, Vienna Department of Agrobiotechnology (IFA‐Tulln), Institute of Bioanalytics and Agro‐Metabolomics Konrad Lorenz Strasse 20, A‐3430 Tulln Austria

P

Paolo Benincasa

Department of Agricultural, Food and Environmental Sciences University of Perugia Perugia Italy

G

Giovanni Beccari

Department of Agricultural, Food and Environmental Sciences University of Perugia Perugia Italy

Cite This Article

Francesco Tini, Lorenzo Covarelli, Christina Cowger, et al. (2022). Infection timing affects Fusarium poae colonization of bread wheat spikes and mycotoxin accumulation in the grain. Journal of the Science of Food and Agriculture, 102(14), 6358-6372. https://doi.org/10.1002/jsfa.12002

Infection timing affects Fusarium poae colonization of bread wheat spikes and mycotoxin accumulation in the grain

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