Effect of nitrogen application at anthesis on Fusarium head blight and mycotoxin accumulation in breadmaking wheat in the western part of Japan

Yoshida, M.; Nakajima, Takashi; Tonooka, Takuji

doi:10.1007/s10327-008-0109-1

Cited by 35 publications

(22 citation statements)

References 40 publications

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“…incidence. Several recent studies have shown that FHB infection and Fusarium mycotoxin contaminations were increased with higher rate of N application (Lemmens et al 2004;Burgt et al 2011), whereas other studies did not reveal any significant effects of N application on FHB (Váňová et al 2008;Yoshida et al 2008). …”

Section: Discussionmentioning

confidence: 95%

Early PCR-based detection of Fusarium culmorum, F. graminearum, F. sporotrichioides and F. poae on stem bases of winter wheat throughout Poland

et al. 2014

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Foot rot and crown rot are fungal diseases of wheat caused by a complex of Fusarium species. They have a huge economic impact mainly due to yield reduction. A survey was conducted to identify four Fusarium species, occurring on wheat stem bases, using speciesspecific PCR assays in samples collected during spring of 2012. The dominant species was F. graminearum, which was identified in above 64 % of samples. F. culmorum was detected in 15.71 %, F. poae in 15.71 % and F. sporotrichioides in 5.71 % wheat fields. Most of the wheat fields in the eastern Poland were infected with at least one or two of Fusarium species, while in central Poland no Fusarium species were identified in most of the fields. The presence of F. graminearum tends to favor the presence of F. culmorum and this effect was visible also for F. poae and F. sporotrichioides. The frequency of F. graminearum and F. culmorum detections were highest where wheat crops were preceded by maize and in the samples from late sown fields. The opposite observation was made for F. poae and F. sporotrichioides, where the number of detections of these species was higher in samples from early sown fields. The number of detected Fusarium species was significantly lower in samples collected from fields protected with autumn herbicide in comparison to unprotected fields. The rate of autumn N fertilization did not affect the number of Fusarium detections.

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Section: Discussionmentioning

confidence: 95%

Early PCR-based detection of Fusarium culmorum, F. graminearum, F. sporotrichioides and F. poae on stem bases of winter wheat throughout Poland

et al. 2014

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“…FHB was assessed at 20 DAA in both years (ZGS 77; late milk stage). Fifty spikes were arbitrarily selected from each plot and assessed for FHB severity on a scale of 0 to 100 (scores of 0, 5,10,20,30,40,50,60,70,80,90, and 100, according to visual rating of the percentage of discolored area of the spike), as in previous studies (47,49), and the average was calculated for each plot. Using these data, FHB incidence (percentage; i.e., the percentage of visually diseased spikes) was also calculated for each plot.…”

Section: Methodsmentioning

confidence: 99%

Effect of the Timing of Fungicide Application on Fusarium Head Blight and Mycotoxin Contamination in Wheat

et al. 2012

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Yoshida, M., Nakajima, T, Tomimura, K., Suzuki, F., Arai, M., and Miyasaka, A. 2012. Effect of the timing of fungicide application on Fusarium head blight and mycotoxin contamination in wheat. Plant Dis. 96:845-851.Fungicide application to control Fusarium head blight (FHB) and accompanying mycotoxin contamination in wheat is generally performed at anthesis because wheat is most susceptible to FHB around this stage. In this study, we evaluated the effect of the timing of fungicide application on FHB and mycotoxin (deoxynivalenol and nivalenol) accumulation in wheat based on our previous finding that the late period of grain development (beyond 20 days after anthesis [DAA]) is important to determine the final toxin contamination level in wheat. Thiophanate-methyl fungicide was tested under artificial inoculation conditions in which moisture and inoculum spores were provided throughout the testing period. Eight treatments differing in application timing (anthesis, 10, 20, and 30 DAA) and in the number of applications (0 to 2) were tested for 2 years. The results indicated that fungicide application timing differentially affects FHB (disease) and mycotoxin concentration. Fungicide application at 20 DAA reduced mycotoxin concentration in matured grain without reducing FHB severity, whereas application at anthesis was crucial for reducing FHB. These results and our previous findings suggest that around 20 DAA (late milk stage) is a potentially critical timing for mycotoxin control in wheat.Fusarium head blight (FHB), a destructive disease of wheat (Triticum aestivum L.), barley, and other small-grain cereals, is caused by several Fusarium spp. (17,18,26,29). These pathogens infect spikes and reduce grain yield and quality. Moreover, Fusarium spp. that cause FHB produce trichothecene mycotoxins such as deoxynivalenol (DON) and nivalenol (NIV) and the estrogenic mycotoxin zearalenone. Such mycotoxins are toxic to humans and other animals. Contamination of wheat and barley by these mycotoxins has been reported worldwide (31,41,42).The Fusarium graminearum species complex (23)(24)(25)37,46)

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“…Excessive nitrogen fertilization results in a decreased carbohydrate level in cultivated plants and it also may be a reason for the limited resistance to some fungal diseases (Yoshida et al 2008;Huber and Thompson 2007). Rice blast (Kürschner et al 1992;Long et al 2000) is the best-known example of such a disease.…”

Section: Effect Of Abiotic Stress On Carbohydrate Content and Resistamentioning

confidence: 99%

The role of sugar signaling in plant defense responses against fungal pathogens

2014

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Effect of nitrogen application at anthesis on Fusarium head blight and mycotoxin accumulation in breadmaking wheat in the western part of Japan

Cited by 35 publications

References 40 publications

Early PCR-based detection of Fusarium culmorum, F. graminearum, F. sporotrichioides and F. poae on stem bases of winter wheat throughout Poland

Early PCR-based detection of Fusarium culmorum, F. graminearum, F. sporotrichioides and F. poae on stem bases of winter wheat throughout Poland

Effect of the Timing of Fungicide Application on Fusarium Head Blight and Mycotoxin Contamination in Wheat

The role of sugar signaling in plant defense responses against fungal pathogens

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