Natural occurrence of trichothecenes and zearalenone in Argentine wheat

Quiroga, Nora M; Resnik, Silvia L.; Pacin, A.; Martı́nez, Elena; Pagano, Ana M.; Riccobene, Isabel Concepción; Neira, Susana

doi:10.1016/0956-7135(95)00021-i

Cited by 33 publications

(25 citation statements)

References 11 publications

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“…On the contrary, zone V can be considered less contaminated because 71.42% of samples don't reach 100% of infection. In fact, F. graminearum is the most frequent fungi in the zone IIN and IIS while the percentages are lower in the zones IV and V. The levels of toxin contamination found in samples in this study are similar to those reported earlier in heavily infected wheat in Argentina (10,19). This is the first report of the natural occurrence of NIV in wheat cultivated in Argentina.…”

Section: Discussionsupporting

confidence: 79%

“…Therefore the presence of NIV in Argentinean wheat may have a significant impact on the food safety aspects because its presence can synergize the toxicity of DON. By this study and other reports (5,10,19) Argentina prove to have a high risk of DON wheat contamination due to the high incidence of FHB, particularly in the area with temperate humid climate. This risk seems also to be present in South of Brazil (9) and Uruguay (18).…”

Section: Discussionmentioning

confidence: 93%

“…The conidial suspension was performed by adding 5,0ml of sterile distilled water to a slant of a 7day culture at 28ºC on PDA and gently scraping the agar surface with a wire loop to give a turbid suspension. DON, NIV, 15AcDON, 3AcDON, FUSX, and ZEA were extracted with acetonitrile: ethyl acetate: water (50: 41: 9) as extraction solvent, and the clean up was made with a column packed with charcoal: alumina: celite (0.7: 0.5: 0.3) as was previously described (19).…”

Section: Evaluation Of Toxicogenic Capacity Of Fusarium Isolatesmentioning

confidence: 99%

“…(11). Some earlier works have shown that F. graminearum was the main occurring species and deoxinivalenol (DON) was the main toxin contaminant detected in wheat and wheat-products in Argentina (10,18,19,20). Two main chemotypes were reported in G. zea from rice in Japan: the "NIV chemotype" which produces nivalenol (NIV) and Fusarenone X (Fus-X) and the "DON Chemotype" which produces deoxinivalenol (DON) and its acetylated forms (12).…”

Section: Introductionmentioning

confidence: 99%

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Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina

Pinto¹,

Terminiello²,

Basílico³

et al. 2008

Braz. J. Microbiol.

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The principal agents of Fusarium head blight in the main cropping area of Argentina were investigated in heavily infected samples. The ability of the isolates to produce trichothecenes was determined by GC and HPLC. Fusarium graminearum was the predominant species and of 33 isolates, 10 produced deoxinivalenol (DON) (0.1-29 mg kg ), 10 produced Fusarenone X (0.1-2.4 mg kg -1 ) and 7 produced zearalenone (0.1-0.6 mg kg -1 ). These results suggest that F. graminearum strains isolated from the wheat growing regions in Argentina belong to DON chemotype. Although some strains produced both deoxinivalenol and nivalenol, nivalenol was produced in lower levels. The natural occurrence of nivalenol in wheat affected by head-blight collected in the main production area during two years (2001)(2002) was also determined. From 19 samples 13 were contaminated with deoxinivalenol in a range of 0.3 to 70 mg kg -1 and 2 samples with both deoxinivalenol (7.5 and 6.7 mg kg -1 ) and nivalenol (0.05 and 0.1 mg kg -1 ), respectively. This is the first report of natural occurrence of nivalenol in wheat cultivate in Argentina.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 93%

Section: Evaluation Of Toxicogenic Capacity Of Fusarium Isolatesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina

Pinto¹,

Terminiello²,

Basílico³

et al. 2008

Braz. J. Microbiol.

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“…Levels of DON contamination detected in 84 grain samples varied from 0.1 to 25 ppm in the 1985 FHB epidemic year (Banchero et al 1987). A survey of several wheat samples obtained from Santa Fe and Buenos Aires provinces (central wheat growing region from Argentina) during 1986 and 1992 period, showed DON levels between 0.05 and 2.4 ppm (Quiroga et al 1995). During the 1993 FHB outbreak, Dalcero et al (1997) reported DON levels up to 4.5 ppm and in the 2001 epidemic, Lori et al (2003) observed up to 8 ppm in wheat grain samples.…”

Section: Introductionmentioning

confidence: 99%

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

Palazzini¹,

Fumero²,

Yerkovich³

et al. 2015

Cereal Research Communications

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Fusarium graminearum (Schwabe) is reported as the main causal agent of Fusarium head blight in Argentina. The disease causes great losses in humid and semi-humid regions of the world, reducing grain yield and quality. During 2012/13 harvest season, a severe epidemic occurred in Argentina. The aims of this work were to determine the F. graminearum incidence and deoxynivalenol accumulation in wheat grain and flour samples obtained from two of the main wheat growing regions from Argentina. Levels of the pathogen and deoxynivalenol content were correlated in heads, grains and flour. Out of 69 wheat grain samples, 55 (79.7%) showed deoxynivalenol levels between 0.4 and 8.5 µg/kg. Fusarium graminearum was the main species isolated, the isolation frequency ranged from 30 to 52% of the total grains analyzed. Correlations were observed between deoxynivalenol content, % of F. grami nearum infection, presence of the pathogen in heads, grain and flour.

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Fusarium toxins in wheat harvested during six years in an area of southwest Germany

et al. 1997

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Natural occurrence of trichothecenes and zearalenone in Argentine wheat

Cited by 33 publications

References 11 publications

Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina

Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina

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

Fusarium toxins in wheat harvested during six years in an area of southwest Germany

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