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                                       Details van artikel 3 van 8 gevonden artikelen
 
 
  Evaluating a diverse panel of biocontrol agents against infection of blueberry flowers by Monilinia vaccinii-corymbosi
 
 
Titel: Evaluating a diverse panel of biocontrol agents against infection of blueberry flowers by Monilinia vaccinii-corymbosi
Auteur: Thornton, H. A.
Savelle, A. T.
Scherm, H.
Verschenen in: Biocontrol science and technology
Paginering: Jaargang 18 (2008) nr. 4 pagina's 391-407
Jaar: 2008
Inhoud: Seven microorganisms were evaluated for their biocontrol potential against Monilinia vaccinii-corymbosi which causes mummy berry disease through gynoecial (stigma-style-ovary) infection of blueberry flowers: the bacteria Bacillus subtilis QRD137, B. mojavensis RRC101, B. mycoides 7IIC4, and Pantoea agglomerans C9-1S; the yeast Wickerhamiella australiensis Y-27360; and the filamentous fungi Trichoderma harzianum KRL-AG2 and Gliocladium roseum H47. The epiphytic fitness of each organism was investigated by evaluating population dynamics or fungal growth on the stigmas of detached blueberry flowers, and such flowers, co-inoculated with M. vaccinii-corymbosi, were used to determine efficacy in reducing pathogen infection of the style. In addition, all organisms were tested in vitro for antibiosis using dual cultures and for nutrient competition (niche overlap) using Biolog microplates. The most promising antagonists were P. agglomerans, which exhibited high epiphytic fitness on the stigma and consistently reduced stylar infection by the pathogen; B. subtilis, which showed strong antibiotic activity in vitro and considerably reduced pathogen ingress into styles, but whose limited epiphytic fitness decreases its potential for field-use; and G. roseum, which exhibited complete niche overlap with the pathogen in vitro but produced more variable results in reducing stylar infection. Future work should evaluate combinations of these antagonists to determine whether there are additive effects and whether the variability inherent in biocontrol can be reduced.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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