Correlation between<i>Fusarium graminearum</i>and deoxynivalenol during the 2012/13 wheat Fusarium head blight outbreak in Argentina

Palazzini, Juan Manuel; Fumero, V.; Yerkovich, Nadia; Barros, Germán; Cuniberti, M.; Chulze, Sofía Noemí

doi:10.1556/0806.43.2015.017

Cited by 39 publications

(25 citation statements)

References 33 publications

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“…With stronger FHB infections, these results might have been different. Between DON content and FHB incidence positive correlation appeared, which was also confirmed in studies of Blandino et al (2006) and Palazzini et al (2015).…”

Section: Cereal Research Communications 46 2018supporting

confidence: 75%

Head and leaf fungicide deposit on winter wheat, deoxynivalenol content and yield parameters as affected by different nozzle types

Vučajnk

Trdan

Leskošek

et al. 2018

Cereal Research Communications

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In 2014 and 2015, we studied the effect of fungicide spraying with 11 different nozzles on the quality and quantity of head and leaf fungicide deposit, the percentage of Fusarium head blight (FHB) incidence, FHB index, the DON content, yield and grain quality parameters. The best quality and quantity of fungicide deposit on the front and rear head sides was achieved with the TeeJet Turbo FloodJet TF VP2 nozzle (FLOOD) and the Albuz AVI-TWIN 110-03 nozzle (AVI). In comparison with the majority of treatments, the FHB incidence and the FHB index was the highest on the unsprayed control. The FHB index was higher using the Lechler IDK 120-03 nozzle (IDK) than with the other nozzle types. In all the treatments, the DON content in the grain was less than 50 µg/kg. At this very low level of infection this is not surprising. The grain yield was the smallest on the unsprayed control. Better fungicide coverage of wheat heads with the FLOOD and AVI nozzles did not result in a statistically higher yield or better grain quality parameters. Negative correlations were confirmed between yield and variables as DON content, FHB incidence and FHB index and also between falling number and variables as fungicide coverage, FHB incidence and FHB index. Positive correlations were determined between DON content and FHB incidence, between hectolitre weight and variables as spray deposit and coverage and between protein content and variables as spray deposit and coverage.

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Section: Cereal Research Communications 46 2018supporting

confidence: 75%

Head and leaf fungicide deposit on winter wheat, deoxynivalenol content and yield parameters as affected by different nozzle types

Vučajnk

Trdan

Leskošek

et al. 2018

Cereal Research Communications

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“…Fusarium head blight is caused by species within the F. graminearum complex. In Argentina, F. graminearum sensu stricto is the main pathogen associated with the disease [ 1 , 16 ]. In the pathosystem wheat– F. graminearum , it was demonstrated that both SA and JA signaling are associated with FHB resistance [ 28 , 29 ].…”

Section: Discussionmentioning

confidence: 99%

“…During the last 60 years, several epidemics of FHB of varying degrees of severity have occurred in Argentina. During 2012, a severe FHB outbreak occurred in the main wheat growing area, with estimated losses of up to 70% [ 1 ]. The concern of this disease is due to the reduction in grain yield and quality and the potential for contamination with mycotoxins, mainly trichothecenes such as deoxynivalenol (DON) and its acetylated derivatives 3-acetyl-deoxynivalenol (3-ADON) and 15-acetyl-deoxynivalenol (15-ADON) and deoxynivalenol 3 β– d -glucoside (DON-3-G) [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Biocontrol of Fusarium graminearum sensu stricto, Reduction of Deoxynivalenol Accumulation and Phytohormone Induction by Two Selected Antagonists

Palazzini

Roncallo

Cantoro

et al. 2018

Toxins

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Fusarium head blight (FHB) is a devastating disease that causes extensive yield and quality losses to wheat and other small cereal grains worldwide. Species within the Fusarium graminearum complex are the main pathogens associated with the disease, F. graminearum sensu stricto being the main pathogen in Argentina. Biocontrol can be used as part of an integrated pest management strategy. Phytohormones play a key role in the plant defense system and their production can be induced by antagonistic microorganisms. The aims of this study were to evaluate the effect of the inoculation of Bacillus velezensis RC 218, F. graminearum and their co-inoculation on the production of salicylic acid (SA) and jasmonic acid (JA) in wheat spikes at different periods of time under greenhouse conditions, and to evaluate the effect of B. velezensis RC 218 and Streptomyces albidoflavus RC 87B on FHB disease incidence, severity and deoxynivalenol accumulation on Triticum turgidum L. var. durum under field conditions. Under greenhouse conditions the production of JA was induced after F. graminearum inoculation at 48 and 72 h, but JA levels were reduced in the co-inoculated treatments. No differences in JA or SA levels were observed between the B. velezensis treatment and the water control. In the spikes inoculated with F. graminearum, SA production was induced early (12 h), as it was shown for initial FHB basal resistance, while JA was induced at a later stage (48 h), revealing different defense strategies at different stages of infection by the hemibiotrophic pathogen F. graminearum. Both B. velezensis RC 218 and S. albidoflavus RC 87B effectively reduced FHB incidence (up to 30%), severity (up to 25%) and deoxynivalenol accumulation (up to 51%) on durum wheat under field conditions.

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“…In the USA, yield losses as a result of FHB were estimated to be US$ 3 billion between the early 1990s and 2008 . Severe FHB outbreaks also frequently occurred in the main wheat growing area in Europe, South America and Latin America . The FHB epidemic has increased in China since 2010 and occurs in about 20% of the planting area of wheat .…”

Section: Introductionmentioning

confidence: 99%

“…2 Severe FHB outbreaks also frequently occurred in the main wheat growing area in Europe, South America and Latin America. 3,4 The FHB epidemic has increased in China since 2010 and occurs in about 20% of the planting area of wheat. 5 Currently, chemical fungicide control is the most effective strategy for controlling FHB due to the unavailability of FHB resistant wheat cultivars.…”

Section: Introductionmentioning

confidence: 99%

The b‐ZIP transcription factor FgTfmI is required for the fungicide phenamacril tolerance and pathogenecity in Fusarium graminearum

Liu

Dawood

et al. 2019

Pest Management Science

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BACKGROUND Fusarium head blight (FHB) is a devastating disease of cereal crops worldwide mainly caused by Fusarium graminearum. Due to the unavailability of FHB‐resistant wheat cultivars, chemical fungicide application is currently the most effective approach for controlling FHB now. In the last few years, a novel cyanoacrylate fungicide, phenamacril, has been widely used in China for FHB disease management. In previous studies, we identified that myosin I (FgMyo1) is the target of phenamacril and is essential for mycotoxin deoxynivalenol (DON) biosynthesis and fungal growth. However, the regulation of FgMYO1 gene expression is still largely unknown. RESULTS In this study, we identified a b‐ZIP transcription factor, FgTfmI, which regulates the mRNA expression of FgMYO1 upon phenamacril treatment. The FgTfmI directly binds to the promoter region of FgMYO1, and is required for the upregulation of FgMYO1 in response to phenamacril treatment. The deletion mutant of FgTFMI (ΔFgTfmI) displayed a slight growth defect, while it showed hypersensitivity to phenamacril, but not to other tested fungicides. FgTfmI also contributed to DON biosynthesis and the infection process in planta. CONCLUSIONS The transcription factor FgTfmI plays an important role in regulating transcription of the genes involved in phenamacril tolerance, DON biosynthesis and virulence in F. graminearum. © 2019 Society of Chemical Industry

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Correlation betweenFusarium graminearumand deoxynivalenol during the 2012/13 wheat Fusarium head blight outbreak in Argentina

Cited by 39 publications

References 33 publications

Head and leaf fungicide deposit on winter wheat, deoxynivalenol content and yield parameters as affected by different nozzle types

Head and leaf fungicide deposit on winter wheat, deoxynivalenol content and yield parameters as affected by different nozzle types

Biocontrol of Fusarium graminearum sensu stricto, Reduction of Deoxynivalenol Accumulation and Phytohormone Induction by Two Selected Antagonists

The b‐ZIP transcription factor FgTfmI is required for the fungicide phenamacril tolerance and pathogenecity in Fusarium graminearum

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