Your search resulted in 792 documents. Displaying 25 entries per page.
Decay pattern in external wooden structures
2025 - IRG/WP 25-11055
Decay in external wooden structures has historically been a universal problem of great concern. Despite this, the general understanding of where and why wood-decaying fungi are occurring is limited. The consequences of this are that decayed wood might not be detected and that measures to protect the wood against deterioration has limited effect.
Wood decay in different geographical and climatic ...
J Mattsson, M S Austigard, A-C Flyen
Xerophilic mould fungi on new and historic wood
2025 - IRG/WP 25-11056
An examination of mould fungi in 35 medieval and ten 18th Century buildings shows mould growth to varying degrees on different surfaces. The analyses also show a rapid development of mould fungi on certain wooden surfaces in recent years.
A significant difference in the growth between new and old wood is the clearly more extensive growth and different species composition of mould fungi on new wo...
J Mattsson, M S Austigard
Entomopathogenic organisms: Host-pathogen interactions
2025 - IRG/WP 25-11059
The management strategy of wood attacked by wood-eating insects has been until now by the application of insecticidal products used as biocides and/or repellents, or using physical treatments. This paper describes the use of entomopathogenic organisms (viruses, bacteria, fungi and nematodes), normally used in agricultural systems, in order to study their possible transfer to wood-decay insects.
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M T Troya, S Santos, L Robertson
Revealing the degradation process of Moso bamboo (Phyllostachys edulis) by different decay fungi
2025 - IRG/WP 25-11060
Moso Bamboo (Phyllostachys edulis) is the main bamboo species for engineering; however, it is highly susceptible to various fungi during use. In this study, four prevalent decay fungi, including two brown rot fungi and two white-rot fungi, were used as the test fungi to investigate the changes in structure and chemical composition of Moso bamboo samples at different incubation times in order to be...
J Xue, D Cui, M Zhou, J Cao
Durability to wood decay fungi and subterranean termites of Quercus pyrenaica Wild
2025 - IRG/WP 25-11066
The use of wood has added value since it is renewable, biodegradable, and a recyclable material. For this reason, evaluating its natural durability is essential when establishing the level of protection required, depending on the designated end use. Natural durability is defined as the intrinsic resistance of wood against the attack of destructive organisms. There are standardised methods to estim...
S Santos, M T Troya, L Robertson, S Gutierrez, G Caballe, J L Villanueva
Durability and molecular analysis of fungal communities in wood exposed above ground
2025 - IRG/WP 25-11068
The objective of the study was to explore the durability of wood exposed above ground, comprising a wide diversity of wood species and treatments and extensive assessment data on wood durability in ongoing long-term testing. Larch species and Scots pine heartwood, two tropical species ntholo and ncurri and a number of treated wood by copper-based formulations and alternatives (silanes, spiroborate...
N Högberg, D Panov, G Daniel, N Terziev
Detecting wood-decay fungi in walls: a non-destructive approach with an electronic nose
2025 - IRG/WP 25-11070
Wood-decay fungi degrade the structural integrity and safety of wooden buildings, leading to potential hazards and reduced durability. Conventional detection methods, such as visual inspection and destructive sampling, are often impractical for concealed spaces, such as those within walls or beneath floors. These methods often require specialised training and costly equipment, making non-destructi...
M Suzuki, T Miyauchi, S Isaji, R Naganawa
Interaction of cellulolytic enzymes with fungal cell wall polysaccharides
2025 - IRG/WP 25-11071
Wood rotting fungi are the primary agents responsible for the decomposition of wood in natural environments. These fungi secrete a variety of enzymes to degrade the chemically and structurally resistant components of the wood cell wall. Some of these enzymes possess a carbohydrate-binding module (CBM), which enhances enzymatic efficiency by increasing their affinity to the substrate. Previously, w...
K Fukabori, N Hattori, Y Kojima, R Iizuka, M Yoshida
Physiological characterization of a key enzyme involved in gaseous COS assimilation in the filamentous fungus Trichoderma harzianum
2025 - IRG/WP 25-11072
Filamentous fungi are among the primary organisms responsible for the biological deterioration of wood, including wood decay and surface contamination. Therefore, understanding their physiological mechanisms is important for developing effective wood preservation strategies. Most physiological studies on filamentous fungi have focused on the metabolism of major elements, such as carbon in the form...
R Iizuka, A Ono, T Suzuki, Y Katayama, M Yoshida
Distribution of Crystalline Cellulose-Binding Domain CBM104 in Wood Rotting Fungi
2025 - IRG/WP 25-11073
Wood rotting fungi play a crucial role in biodeterioration of wood. Many brown-rot fungi are known to rapidly degrade cellulose in wood despite lacking enzymes with cellulose-binding domains. This has led to the hypothesis that they rely on a non-enzymatic degradation system. We recently discovered a novel cellulose-binding domain, CBM104, in the brown-rot fungus Gloeophyllum trabeum. In this stud...
Y Kojima, N Sunagawa, M Aoki, S Tagawa, M Wada, K Igarashi, M Yoshida
Investigation of oxalic acid production in brown-rot fungi
2025 - IRG/WP 25-11074
Brown-rot fungi play a crucial role as wood decomposers in forests and are also known as the main cause of biodeterioration of wooden buildings in Japan. Therefore, understanding their decomposition mechanisms is important for the maintenance and preservation of wooden structures. While white-rot fungi generally use enzyme-system for degradation, many brown-rot fungi lack cellobiohydrolases which ...
S Matsumoto, R Tsukida, T Ito, M Iritani, M Yoshida
Effect of the Cellulose-Binding Domain Associated with Xylanase on the Degradation of Softwood and Hardwood Xylan
2025 - IRG/WP 25-11078
Brown rot fungi rapidly degrade hemicellulose, which is recognized as a key decomposition process during the early stages of wood decay. Brown rot fungi possess multiple genes encoding hemicellulose-degrading enzymes, suggesting that enzymatic hydrolysis plays an important role in this process. Hemicellulases produced by these fungi often contain an additional domain classified as carbohydrate-bin...
R Tsukida, Y Kojima, S Kaneko, M Yoshida
Screening of fungi capable of degradation of β-aryl ether bond from lignin model compounds by using highly fluorescent-emitting detection
2025 - IRG/WP 25-11081
Lignin is an aromatic polymer and composed of phenylpropane units polymerized by dehydrogenases in cell walls. Lignin has a complex chemical structure with C-C and C-O-C bonds, and it is difficult to decompose lignin structure by microorganisms in natural conditions. For the microbial degradation of lignin structure, wood decay fungi can non-specifically degrade the lignin polymeric structure by o...
A Ishikawa, Y Mori, Y Ota, M Kiguchi
Synergistic effect of the association of Prosopis juliflora polyphenolic extractives with tebuconazole on the growth inhibition of brown and white rot fungi: a solution to increase the naturality and safety of wood preservation treatment
2025 - IRG/WP 25-20732
The antifungal effect of catechin and extractives from Prosopis juliflora was studied against one white rot fungus, Trametes versicolor (TV), and one brown rot fungus, Rhodonia placenta (PP). The extractives from Prosopis julilfora were crude mesquitol and pure mesquitol. Tebuconazole was used in this study as a known fungicide against the two named fungi. Wood protection using fungicides can be h...
J Owino, J Tuimising, F Mangin, P Gérardin, A Kiprop, C Gérardin-Charbonnier
Potential co-valorization of pyrolysis tars from five wood species form Tunisia as wood preservatives bases: Chemical compositions, antifungal and anti-termite activities
2025 - IRG/WP 25-20739
The pyrolysis of five Tunisian wood species (Ceratonia siliqua, Eucalyptus camaldulensis, Eucalyptus maidenii, Pinus pinea, and Quercus canariensis) was carried out in a custom-designed carbonisation reactor developed at the INRGREF's Wood Technology Section (Tunis, Tunisia). This process aimed to produce both char and pyrolysis by-products, particularly pyrolysis oils. The experiments were conduc...
M T Elaieb, J Valette, E Kiény, L Pignolet, S Ghariani, K Candelier
Properties of plasma etched super black wood
2025 - IRG/WP 25-30825
Super-black materials have very low reflectivity due to structural absorption of light. They are attracting considerable scientific and industrial attention because of their important applications in many fields including astronomy, photovoltaics, and optical science, amongst others. We have developed the first super-black material from wood by etching transverse basswood (Tilia americana L.) surf...
K J Cheng, X Xu, V A Hernandez, P D Evans
Preservation conditions of wooden roofs of two historical churches in middle-Sweden
2025 - IRG/WP 25-41016
Assessment of biodegradation by the rot of shingles from the roofs of churches of Hammarby and Tångeråsa in mid-Sweden was done by studies with X-ray computer tomography. The study suggests that inner rot could be detected with CT, which was not always easily detected by visual inspection. In some cases, erosion from the weathered side was fairly large, but the inner wood part was found not to b...
O Karlsson, Y Huang, A Postovoitova, C-F Lin, O Myronycheva