C. Payne, A. Bruce, H. Staines
Yeast and Bacteria as Biological Control Agents Against Fungal Discolouration of Pinus sylvestris Blocks in Laboratory-Based Tests and the Role of Antifungal Volatiles
Summary
This paper reports on the use of yeast as biological control agents against mould and blue-stain fungi in
laboratory-based Pinus sylvestris sapwood wood block incubation tests. All 5 yeast isolates tested significantly
reduced discolouration of wood surfaces by moulds and most were also effective against staining
fungi. The 2 most promising yeast isolates also significantly reduced radial growth of selected mould
and stain fungi in vitro solely through the liberation of volatile compounds. Five bacterial isolates were
also tested for antagonism toward mould and stain fungi and were effective biological control agents in
wood block tests. Again, volatile production alone by the bacteria was shown to be sufficient to significantly
reduce fungal growth in vitro. Most of the bacteria and yeasts significantly reduced wood discolouration
by fungi when inoculated onto block surfaces 7 days before, or at the same time as the target
fungi, and in some cases even when inoculated 7 days after the fungi. The possibility of using yeasts
as biological control agents to prevent wood spoilage during kiln drying and short-term storage at
sawmills is considered.
Holzforschung, Walter de Gruyter
Print ISSN: 0018-3830
Volume: 54, 10/2000
Pages: 563 - 569
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