Penecillium aspergillus spore microscope8/13/2023 In this study, we evaluated the ability of spores, from these two fungal species, to adhere on cedar wood and quantified the interactions that can be involved in the adhesion on this substratum.Īspergillus niger and Penicillium expansum, designated successively S1 and S2, were isolated from cedar wood decay from several sites in the former Derb lamté in the Medina of the Fez, Morocco. We have previously demonstrated-in our laboratory-the prevalence of Aspergillus niger and Penicillium expansum on cedar wood used to build various monuments in the medina of Fez (Zyani et al. 1993) and spore dispersal (Beever and Dempsey 1978) requires knowledge of the fungal spore surface physicochemical properties and a full understanding of the adhesion process. Understanding spore adhesion (Hamer et al. To our knowledge, no studies have been reported on fungal spores adhesion to wood despite the crucial use of this material in various architectural building monuments. 2005) and stainless steel (Hornstra et al. ![]() A large number of studies have so far investigated the attachment of spores to inert surfaces such as mica (Richard et al. During the initial non-specific interactions, which are described by the extended Derjaguin, Landau, Verwey, and Overbeek theory, such forces include the Lifshitz-Van Waals, acid/base and electrostatic interactions as well as biological specific interactions. The initial attachment of microorganisms, including spores, to surfaces consists of a two-step mechanism. 2005), and it is likely that what little information is known may not be broadly applicable across spores of all species. In contrast, there have been very few studies on the adhesion of spores from fungi (Newey et al. 1990), and yeasts (Gallardo-Moreno et al. In this sense, microbial biofilms produced by bacteria (Bruinsma et al. ![]() However, very little is known about fungi adhesion and biofilm formation during wood decay.Īdhesion is the first step in a cascade of events through which cellular interaction with a material surface occurs. ![]() There is considerable information available concerning microbial and enzymatic degradation of wood and wood products (Kirk and Cowling 1984 Otjen and Blanchette 1986 Blanchette 1987 Eriksson et al. The genera Aspergillus and Penicillium are two of the most common groups of fungi that cause major problems of biodegradation of wood and in the food industry and medicine (Smith 1994).
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