Fusarium Diseases of Canadian Grain Crops: Impact and Disease Management Strategies

Foroud, Nora A.; Chatterton, Syama; Reid, L. M.; Turkington, T. K.; Tittlemier, Sheryl A.; Gräfenhan, Tom

doi:10.1007/978-1-4939-1188-2_10

Cited by 21 publications

(23 citation statements)

References 312 publications

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“…This species accumulates in roots later than the other pathogens and disease severity increases in its presence compared with single pathogen inoculations. In cereals, while F. graminearum is generally more aggressive in wheat than F. avenaceum and is the main causal agent of FHB, F. avenaceum is regularly detected in wheat spikes [4,31,32,63]. DON is the most common Fusarium mycotoxin identified in cereal grains [64], but it often co-occurs with ENNs.…”

Section: Discussionmentioning

confidence: 99%

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Enniatin Production Influences Fusarium avenaceum Virulence on Potato Tubers, but not on Durum Wheat or Peas

et al. 2020

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Fusarium avenaceum is a generalist pathogen responsible for diseases in numerous crop species. The fungus produces a series of mycotoxins including the cyclohexadepsipeptide enniatins. Mycotoxins can be pathogenicity and virulence factors in various plant–pathogen interactions, and enniatins have been shown to influence aggressiveness on potato tubers. To determine the role of these mycotoxins in other F. avenaceum–host interactions, ENNIATIN SYNTHASE 1 (ESYN1) disruption and overexpression mutants were generated and their ability to infect wheat and peas investigated. As a preliminary study, the transformants were screened for their ability to cause potato tuber necrosis and, consistent with a previous report, enniatin production increased necrotic lesion size on the tubers. By contrast, when the same mutants were assessed in their ability to cause disease in pea roots or durum wheat spikes, no changes in disease symptoms or virulence were observed. While it is known that, at least in the case of wheat, exogenously applied enniatins can cause tissue necrosis, this group of mycotoxins does not appear to be a key factor on its own in disease development on peas or durum wheat.

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Section: Discussionmentioning

confidence: 99%

“…Fusarium avenaceum is a generalist pathogen involved in a wide variety of plant diseases, including Fusarium root and stalk rots of diverse crops species [1][2][3], and Fusarium head blight (FHB) of cereals [4]. Potatoes, peas, and cereals are among the major agricultural crops affected by this species.…”

Section: Introductionmentioning

confidence: 99%

Enniatin Production Influences Fusarium avenaceum Virulence on Potato Tubers, but not on Durum Wheat or Peas

et al. 2020

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“…Deoxynivalenol (DON) belongs to a class mycotoxins called trichothecenes and are produced by Fusarium species involved cereal crop diseases, such as Fusarium head blight (FHB; Foroud and Eudes, 2009 ). The responsible fungal species infect wheat and other small grains during flowering and kernel development stages and mycotoxins accumulate in the kernels of infected plants (Foroud et al, 2014 ). Ingestion of trichothecene-contaminated grain is harmful for human and animal consumers (Pestka, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

“…The most effective method to minimize trichothecene contamination of food/feed grain is to grow cultivars with FHB resistance and to employ strategic disease management practices, such as those previously described (Dill-Macky and Jones, 2000 ; Krupinsky et al, 2002 ; McMullen et al, 2008 , 2012 ; Foroud et al, 2014 ). A major challenge is that “immunity” to FHB has not been identified in cultivated cereals, and the availability of highly resistant cultivars is limiting since resistance tends to be associated with poor agronomics (Foroud et al, 2014 ). Ongoing efforts have led to some improvements over the years (for an overview see McMullen et al, 2012 , and other publications in the current issue of Frontiers in Microbiology), meanwhile FHB continues to have significant impact.…”

Section: Introductionmentioning

confidence: 99%

Solvent and Water Mediated Structural Variations in Deoxynivalenol and Their Potential Implications on the Disruption of Ribosomal Function

et al. 2016

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Fusarium head blight (FHB) is a disease of cereal crops caused by trichothecene producing Fusarium species. Trichothecenes, macrocylicic fungal metabolites composed of three fused rings (A–C) with one epoxide functionality, are a class of mycotoxins known to inhibit protein synthesis in eukaryotic ribosomes. These toxins accumulate in the kernels of infected plants rendering them unsuitable for human and animal consumption. Among the four classes of trichothecenes (A–D) A and B are associated with FHB, where the type B trichothecene deoxynivalenol (DON) is most relevant. While it is known that these toxins inhibit protein synthesis by disrupting peptidyl transferase activity, the exact mechanism of this inhibition is poorly understood. The three-dimensional structures and H-bonding behavior of DON were evaluated using one- and two-dimensional nuclear magnetic resonance (NMR) spectroscopy techniques. Comparisons of the NMR structure presented here with the recently reported crystal structure of DON bound in the yeast ribosome reveal insights into the possible toxicity mechanism of this compound. The work described herein identifies a water binding pocket in the core structure of DON, where the 3OH plays an important role in this interaction. These results provide preliminary insights into how substitution at C3 reduces trichothecene toxicity. Further investigations along these lines will provide opportunities to develop trichothecene remediation strategies based on the disruption of water binding interactions with 3OH.

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“…It also and cause different diseases such as onychomycosis or keratitis for human [1], or meningoencephalitis in the dog [2]. Fusarium also can result in many other diseases on plants such as Fusarium wilt on watermelon or bean [3,4], Fusarium head blight on wheat [5], Fusarium dry on citrus [6] or Fusarium root rot [7]. According to Fusarium management guide [8], Fusarium head blight disease, which is the key factor to cause Fusarium damage kernel on wheat, has annually resulted in losses of hundreds of million dollars.…”

Section: Introductionmentioning

confidence: 99%

Adaptive-Cognitive Kalman Filter and Neural Network for an Upgraded Nondispersive Thermopile Device to Detect and Analyze Fusarium Spores

Pham

Dinh

2019

Sensors

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Noises such as thermal noise, background noise or burst noise can reduce the reliability and confidence of measurement devices. In this work, a recursive and adaptive Kalman filter is proposed to detect and process burst noise or outliers and thermal noise, which are popular in electrical and electronic devices. The Kalman filter and neural network are used to preprocess data of three detectors of a nondispersive thermopile device, which is used to detect and quantify Fusarium spores. The detectors are broadband (1 µm to 20 µm), λ1 (6.09 ± 0.06 µm) and λ2 (9.49 ± 0.44 µm) thermopiles. Additionally, an artificial neural network (NN) is applied to process background noise effects. The adaptive and cognitive Kalman Filter helps to improve the training time of the neural network and the absolute error of the thermopile data. Without applying the Kalman filter for λ1 thermopile, it took 12 min 09 s to train the NN and reach the absolute error of 2.7453 × 104 (n. u.). With the Kalman filter, it took 46 s to train the NN to reach the absolute error of 1.4374 × 104 (n. u.) for λ1 thermopile. Similarly, to the λ2 (9.49 ± 0.44 µm) thermopile, the training improved from 9 min 13 s to 1 min and the absolute error of 2.3999 × 105 (n. u.) to the absolute error of 1.76485 × 105 (n. u.) respectively. The three-thermopile system has proven that it can improve the reliability in detection of Fusarium spores by adding the broadband thermopile. The method developed in this work can be employed for devices that encounter similar noise problems.

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Fusarium Diseases of Canadian Grain Crops: Impact and Disease Management Strategies

Cited by 21 publications

References 312 publications

Enniatin Production Influences Fusarium avenaceum Virulence on Potato Tubers, but not on Durum Wheat or Peas

Enniatin Production Influences Fusarium avenaceum Virulence on Potato Tubers, but not on Durum Wheat or Peas

Solvent and Water Mediated Structural Variations in Deoxynivalenol and Their Potential Implications on the Disruption of Ribosomal Function

Adaptive-Cognitive Kalman Filter and Neural Network for an Upgraded Nondispersive Thermopile Device to Detect and Analyze Fusarium Spores

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