20.500.12556/RUL-184831 Optimizacija pogojev za estetsko obarvanje bukovega lesa z glivami Optimization of conditions for the aesthetic spalting of beech wood using fungi Namen raziskave je bil proučiti vpliv izbranih gliv in njihovih kombinacij na estetsko obarvanje bukovine (Fagus sylvatica L.) oziroma pojav »spaltinga«. V raziskavo so bile vključene glive Xylaria longipes, Pleurotus ostreatus, Trametes versicolor in Hypoxylon fragiforme. Najprej je bila na agarskem gojišču analizirana rast posameznih glivnih sevov in njihove medsebojne interakcije, nato pa je sledil glavni preizkus izpostavitve lesenih vzorcev glivam. Po inkubaciji so bili vzorci analizirani z digitalnim mikroskopom Olympus DSX1000, hiperspektralim oslikovanjem Clyde HSI in sistemom Micro Combi Tester MCT3 za določanje mikromehanskih lastnosti površine lesa. Rezultati so pokazali, da so bile med posameznimi kombinacijami gliv prisotne razlike v intenzivnosti obarvanja, tvorbi conskih linij in stopnji površinske degradacije lesa. Najizrazitejše spremembe so se pojavile pri kombinacijah gliv z izrazitejšimi antagonističnimi interakcijami, kjer je prišlo do lokalnega potemnenja površine in nastanka melaniziranih območij. Kljub temu na večini lesenih vzorcev ni prišlo do izrazitega spaltinga v obliki dobro razvitih conskih linij, kar je verjetno posledica omejenega časa inkubacije, neenakomerne kolonizacije lesa in specifičnih pogojev rasti gliv. Raziskava potrjuje, da imajo medvrstne interakcije gliv pomembno vlogo pri nastanku estetskih sprememb lesa ter da je za razvoj ponovlji-vega in nadzorovanega postopka spaltinga potrebno natančno uravnavanje rastnih pogojev in izbire glivnih kombinacij. The aim of the study was to investigate the influence of selected fungi and their combinations on the aesthetic discoloration of beech wood (Fagus sylvatica L.), known as spalting. The fungal species included in the study were Xylaria longipes, Pleurotus ostreatus, Trametes versicolor, and Hypoxylon fragiforme. Initially, the growth of individual fungal strains and their mutual interactions were analyzed on agar medium, followed by the main experiment involving exposure of wooden samples to fungal colonization. After incubation, the samples were analyzed using an Olympus DSX1000 digital microscope, a hyperspectral imaging (Clyde HSI), and a Micro Combi Tester MCT3 system for determining micromechanical surface properties of wood. The results showed differences among fungal combinations in the intensity of discoloration, formation of zone lines, and degree of surface degra-dation. The most pronounced changes occurred in combinations exhibiting stron-ger antagonistic interactions, where localized darkening and melanized areas deve-loped. However, most wooden samples did not develop distinct spalting patterns with well-defined zone lines, likely due to limited incubation time, uneven fungal colonization, and specific growth conditions. The study confirms that interspecific fungal interactions play an important role in the formation of aesthetic changes in wood and that the development of a repeatable and controlled spalting process requires careful regulation of growth conditions and appropriate selection of fungal combinations. bukovina spalting glive razkrojevalke conske linije melanin Fagus sylvatica spalting wood-decaying fungi zone lines fungal pigmentation true false false [J. Vdovič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-07-16 07:15:54 2026-07-16 07:16:06 2026-07-18 03:33:19 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*829.12(043.2) 282133 285120771 DIP_Vdovic_Jakob_2026.pdf DIP_Vdovic_Jakob_2026.pdf 1 F517B0308AD03E85D1D228AD4CB2DE81 44180310842e0b781d224163b10ad0b30f78160aba2def5fa629b744861c9e55 4a3089a1-80d5-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=240147 Biotehniška fakulteta 0 0 0