Impact of selected antagonistic fungi on Fusarium species - toxigenic cereal pathogens

Fusarium pathogens grow well and produce significant inoculum on crop resiudues. Reduction of mycotoxins production and pathogen sporulation may be influenced by saprophytic fungi, exhibiting antagonistic effect. Dual culture bioassays were used to examine the impact of 92 isolates (belonging to 29...

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Bibliographic Details
Published in:Acta Mycologica 2008-01, Vol.43 (1), p.29-40
Main Authors: Popiel, D.,Polish Academy of Sciences, Poznan (Poland). Inst. of Plant Genetics, Kwasna, H.,Poznan Agricultural University (Poland). Dept. of Forest Pathology, Chelkowski, J, Stepien, L.,Polish Academy of Sciences, Poznan (Poland). Inst. of Plant Genetics, Laskowska, M.,Poznan Agricultural University (Poland). Dept. of Chemistry
Format: Article
Language:English
Subjects:
Agricultural pollution
Agricultural production
antagonistic fungi
Bioassays
Blight
CEREALE
CEREALES
CEREALS
Contamination
Culture
Deoxynivalenol
ENFERMEDADES FUNGOSAS
Enniatins
FUNGAL DISEASES
Fungi
FUSARIUM
Grain
http://www.fao.org/aos/agrovoc#c_11042
http://www.fao.org/aos/agrovoc#c_1474
http://www.fao.org/aos/agrovoc#c_15814
http://www.fao.org/aos/agrovoc#c_24942
http://www.fao.org/aos/agrovoc#c_3156
http://www.fao.org/aos/agrovoc#c_4788
http://www.fao.org/aos/agrovoc#c_5026
Inoculum
MALADIE FONGIQUE
METHODE
METHODS
METODOS
MICOTOXINAS
MICROBIAL PESTICIDES
Moniliformin
MYCOTOXINE
MYCOTOXINS
Pathogens
PESTICIDE MICROBIEN
PLAGUICIDAS MICROBIANOS
Sporulation
TRICHODERMA
Zearalenone
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Summary:Fusarium pathogens grow well and produce significant inoculum on crop resiudues. Reduction of mycotoxins production and pathogen sporulation may be influenced by saprophytic fungi, exhibiting antagonistic effect. Dual culture bioassays were used to examine the impact of 92 isolates (belonging to 29 fungal species) against three toxigenic species, i.e. Fusarium avenaceum (Corda) Saccardo, F. culmorum (W.G.Smith) Saccardo and F. graminearum Schwabe. Both F.culmorum and F. graminearum isolates produce trichothecene mycotoxins and mycohormone zearalenone and are considered to be the most important cereal pathogens worldwide. Infection with those pathogens leads to accumulation of mycotoxins: deoxynivalenol (DON) and zearalenone (ZEA) in grains. Fusarium avenaceum isolates are producers of moniliformin (MON) and enniatins. Isolates of Trichoderma sp. were found to be the most effective ones to control the growth of examined Fusarium species. The response of Fusarium isolates to antagonistic activity of Trichoderma isolates varied and also the isolates of Trichoderma differed in their antagonistic activity against Fusarium isolates. The production of MON by two isolates of F. avenaceum in dual culture on rice was reduced by 95 to 100 percent by T. atroviride isolate AN 35. The same antagonist reduced the amount of moniliformin from 100 mcg/g to 6.5 mcg/g when inoculated to rice culture contaminated with MON, which suggests the possible decomposition of this mycotoxin
ISSN:0001-625X
2353-074X
DOI:10.5586/am.2008.004