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Translokacija bakra iz zaščitenega lesa, izpostavljenega glivam razkrojevalkam lesa
Humar, Miha (Author), Pohleven, Franc (Author), Kalan, Polona (Author), Amartey, Sam (Author)

URLURL - Presentation file, Visit http://eprints.gozdis.si/314/1/zbgl%2D67%2D5.pdf This link opens in a new window

Abstract
Na področju zaščite lesa se v zadnjem času pojavljajo na baker odporni sevi gliv, kar v praksi predstavlja velik problem. Tolerantne glive ogrožajo zaščiten les v uporabi z običajno trajnostjo nad 30 let, saj les okužen s tolerantnimi sevi gliv lahko propade že v nekaj letih. Mehanizmi tolerantnosti še niso povsem pojasneni. Velik pomen se pripisuje oksalni kislini, ki jo intenzivno tvorijo tolerantne glive. Z laboratorijskimi poskusismo ugotovili, da je poleg tega mehanizma pomemben tudi aktivni transport bakra v micelij gliv. Pri glivah, ki ne izločajo oksalne kisline, jetranslokacija bakra povzročena z difuzijo

Language:Slovenian
Keywords:zaščita lesa, tolerantnost na baker, oksalna kislina, Antrodia vaillantii
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2002
Number of pages:str. 159-171
Numbering:Št. 67
UDC:630*841
ISSN on article:0351-3114
COBISS.SI-ID:910985 Link is opened in a new window
Views:457
Downloads:209
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 This link opens in a new window

Secondary language

Language:Slovenian
Abstract:
Copper tolerance by wood decay fungi is one of the most important problems in the field of wood preservation. These fungi are potential danger for preserved wood in use, wood with expected lifetime of 30 years. Although, the nature of the fungal tolerance is still not completely understood. The resistance of some species of wood decay fungi to copper has been connected to their production of copious amounts of oxalic acid. However, oxalic acid production is not the only factor responsible for this phenomenon. Laboratory experiments showed that one other important mechanism is active copper transport of copper tolerant fungi and diffusion of copper by intolerant ones

Keywords:wood preservation, copper based preservatives, copper tolerance, oxalic acid

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