Resistance against Fusarium head blight in oats

Chrpová, J.; Palicová, J.; Štěrbová, Lenka; Trávníčková, Martina; Dumalasová, V.; Chourová, Marie

doi:10.13080/z-a.2020.107.007

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…It has been suggested that oat resistance type V to Fusarium disease depends on the mycotoxin type and that the QTLs associated with a low level of accumulation of deoxynivalenol in grain might not provide the resistance of the same genotype to other mycotoxins (He et al, 2013;Martin et al, 2018). However, comparison of the results obtained in our study (Gagkaeva et al, 2013) and later studies of the same oat genotypes under different conditions, genotype VIR-7766 (Hautsalo et al, 2021), varieties Argamak (Willforss et al, 2020) and Vyatsky (Chrpová et al, 2020), demonstrated a relatively high resistance of these oats to the accumulation of different mycotoxins, such as T-2/HT-2 toxins and deoxynivalenol.…”

Section: Discussionmentioning

confidence: 49%

Resistance of oat breeding lines to grain contamination with Fusarium langsethiae and T-2/HT-2 toxins

et al. 2021

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Fusarium disease of oats reduces yield quality due to decreasing germination that is caused by then contamination of grain with mycotoxins produced by Fusarium fungi. The aim of this study was to characterize the resistance of naked breeding lines of oats to fungal grain infection and to contamination with T-2 and HT-2 toxins. Thirteen naked oat breeding lines and two naked varieties, Nemchinovsky 61 and Vyatskiy, as well as a husked variety Yakov, were grown under natural conditions in the Nemchinovka Federal Research Center in 2019–2020. The contamination of grain with fungi was determined by the mycological method and real-time PCR. The analysis of mycotoxins was carried out by ELISA. In oats, Alternaria (the grain infection was 15–90 %), Cochliobolus (1–33 %), Cladosporium (1–19 %), Epicoccum (0–11 %), and Fusarium (3–17 %) fungi prevailed in the grain mycobiota. The predominant Fusarium species were F. poae (its proportion among Fusarium fungi was 49–68 %) and F. langsethiae (29–28 %). The highest amounts of F. langsethiae DNA ((27.9–71.9)×10–4 pg/ng) and T-2/HT-2 toxins (790–1230 μg/kg) were found in the grain of husked oat Yakov. Among the analysed naked oat lines, the amount of F. langsethiae DNA varied in the range of (1.2–42.7)×10–4 pg/ng, and the content of T-2/HT-2 toxins was in the range of 5–229 μg/kg. Two oat breeding lines, 54h2476 and 66h2618, as well as a new variety, Azil (57h2396), can be characterized as highly resistant to infection with Fusarium fungi and contamination with mycotoxins compared to the control variety Vyatskiy.

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Section: Discussionmentioning

confidence: 49%

Resistance of oat breeding lines to grain contamination with Fusarium langsethiae and T-2/HT-2 toxins

et al. 2021

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“…Results indicated that increased plant height was associated with lower concentrations of DON and HT2 + T2. Conflicting results were found by Chrpová et al (2020), who found no significant correlation between DON and HT2 + T2 in Czech Republic oat varieties after inoculation with Fusarium graminearum, Fusarium culmorum and Fusarium poae. Height was a significant resistance factor for DON although not for HT2 + T2.…”

Section: Discussionmentioning

confidence: 80%

Susceptibility of UK oat (Avena sativa) varieties to infection by Fusarium species and subsequent HT‐2 and T‐2 toxin contamination

Edwards

Stancic

2022

Plant Breeding

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The aim of this study was to compare the susceptibility of oats to Fusarium langsethiae infection, as measured by combined HT-2 and T-2 mycotoxin concentration (HT2 + T2) in harvested oat grain samples. Over 10 years (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013), samples from single replicates of each UK Recommended List oat trial were analyzed for HT-2 and T-2. For spring oats, there were small but statistically significant differences between varieties, whereas for winter oats, they had a broader range and higher mean of HT2 + T2 concentration compared with spring oats. For winter oats, the short-strawed varieties had consistently high HT2 + T2 levels compared with other varieties, whereas naked varieties were at the lower end of the range, and short, naked varieties had intermediate levels. A separate set of harvested oat grain samples of eight common varieties from 17 field experiments were analyzed by modified joint regression analysis. Results showed that environment had the strongest impact on HT-2 and T-2 concentrations but that the varietal susceptibility to HT-2 and T-2 contamination was highly stable across environments. This methodology can be used to calculate a Fusarium (HT2 + T2) resistance score for oats to aid grower selection of suitable varieties, as is available for Fusarium (DON) resistance for wheat varieties in many countries.

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Resistance against Fusarium head blight in oats

Cited by 2 publications

References 29 publications

Resistance of oat breeding lines to grain contamination with Fusarium langsethiae and T-2/HT-2 toxins

Resistance of oat breeding lines to grain contamination with Fusarium langsethiae and T-2/HT-2 toxins

Susceptibility of UK oat (Avena sativa) varieties to infection by Fusarium species and subsequent HT‐2 and T‐2 toxin contamination

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