Isolation and Differentiation of Fusarium spp. and Microdochium Nivale on Winter Wheat in Western Germany

Schütze, A.; Oerke, E.-C.; Dehne, H.-W.

doi:10.1007/bf03543795

Cited by 7 publications

(2 citation statements)

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“…also present in the plots inoculated with the progeny could have biased the effect of the inoculated isolates of G. zeae. Several studies in Europe revealed that grains infected with the anamorph F. graminearum are also infected by other Fusarium species (Schütze et al, 1997;Waalwijk et al, 2003). In HOH2001 and HOH2002, Fusarium ExAgs were not detectable in the untreated plots.…”

Section: Figure 3 Association Between Deoxynivalenol (Don) Productionmentioning

confidence: 97%

Genetic variation and covariation for aggressiveness, deoxynivalenol production and fungal colonization among progeny of Gibberella zeae in wheat

Cumagun¹,

Rabenstein²,

Miedaner³

2004

Plant Pathology

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Gibberella zeae (anamorph Fusarium graminearum) causes head blight of cereals and contaminates grains with mycotoxins such as deoxynivalenol (DON). To determine the correlations among aggressiveness traits, fungal colonization and DON production, 50 progeny from a segregating population of G. zeae were inoculated onto a susceptible winter wheat cultivar in three field environments (year-location combinations). Aggressiveness traits were measured as headblight rating and plot yield relative to noninoculated plots. Fungal colonization, measured as Fusarium exoantigen (ExAg) content, and DON production were analysed with two ELISA formats. Disease severity was moderate to high based on head-blight rating and relative plot yield. Fusarium ExAg content and DON production ranged from 0·26 -1·41 units and from 4·18 -43·70 mg kg −1 , respectively. Significant (P = 0·01) genotypic variation was found for all traits. Heritability for Fusarium ExAg content was rather low because of high progeny-environment interaction and error. DON/Fusarium ExAg ratio did not vary significantly (P > 0·1) among progeny. Correlation between DON production and Fusarium ExAg content across environments was high (r = 0·8, P = 0·01), but no covariation existed between aggressiveness traits and DON/Fusarium ExAg content ratio.

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Section: Figure 3 Association Between Deoxynivalenol (Don) Productionmentioning

confidence: 97%

Genetic variation and covariation for aggressiveness, deoxynivalenol production and fungal colonization among progeny of Gibberella zeae in wheat

Cumagun¹,

Rabenstein²,

Miedaner³

2004

Plant Pathology

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“…Microdochium nivale is one of the predominant fungal pathogens causing brown foot rot and head blight of cereals in mainland Europe (Parry et al ., 1995; Schütze et al ., 1997) and the UK (Pettitt et al ., 1996; Turner et al ., 1999). As a seed‐borne pathogen, it has been reported to cause a reduction of up to 74% in seedling emergence and also significant yield losses when it infects the ears (Humphreys et al ., 1995).…”

Section: Introductionmentioning

confidence: 99%

Competitive interactions between Microdochium nivale var. majus, M. nivale var. nivale and Fusarium culmorum in planta and in vitro

Simpson¹,

Thomsett²,

Nicholson³

2003

Environmental Microbiology

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Microdochium nivale var. majus and var. nivale are economically important fungal pathogens of cereal seedlings, stem bases and ears, as is the toxigenic species Fusarium culmorum. Competition experiments on seedlings support an earlier report of differential host preference between the varieties of M. nivale on wheat and rye seedlings at 15 degrees C, but showed that it does not extend across a broad range of temperatures. The studies showed that, although interaction is disadvantageous to the less virulent pathogen, it does not confer an advantage to the more virulent pathogen. In mixed inoculum experiments on wheat seedlings at 15 degrees C and 20 degrees C, F. culmorum suppressed the growth of both varieties of M. nivale. However, if M. nivale var. majus became established on the seedlings, it was able to co-suppress colonization of wheat seedlings by F. culmorum. In contrast M. nivale var. nivale did not suppress F. culmorum significantly. The growth of M. nivale var. majus and F. culmorum was also co-suppressed in liquid culture. Significantly, the accumulation of deoxynivalenol mycotoxin was also reduced in the mixed in vitro culture compared with axenic culture of F. culmorum. However, in vitro interaction studies on solidified media were of only limited use in predicting the outcome of competitions in planta.

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Toxigenic Fusarium species and mycotoxins associated with head blight in small-grain cereals in Europe

Bottalico¹,

Perrone²

2002

Mycotoxins in Plant Disease

345

423

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Isolation and Differentiation of Fusarium spp. and Microdochium Nivale on Winter Wheat in Western Germany

Cited by 7 publications

References 1 publication

Genetic variation and covariation for aggressiveness, deoxynivalenol production and fungal colonization among progeny of Gibberella zeae in wheat

Genetic variation and covariation for aggressiveness, deoxynivalenol production and fungal colonization among progeny of Gibberella zeae in wheat

Competitive interactions between Microdochium nivale var. majus, M. nivale var. nivale and Fusarium culmorum in planta and in vitro

Toxigenic Fusarium species and mycotoxins associated with head blight in small-grain cereals in Europe

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