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首页> 外文期刊>Mycologia >Variability in brown line formation and extracellular laccase productionduring interaction between white-rot basidiomycetes and Trichodermaharzianum biotype Th2
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Variability in brown line formation and extracellular laccase productionduring interaction between white-rot basidiomycetes and Trichodermaharzianum biotype Th2

机译：白腐担子菌与哈茨木霉生物型Th2相互作用时棕线形成和胞外漆酶产生的变异性

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摘要

Antagonisms between Trichoderma spp. and white-rot fungi are of interest for lignocellulose degradation and mushroom cultivation. Production of emergent hyphae, formation of pigmented barrages and production of laccases were followed and compared during confrontations between mycelia of two T. harzianum isolates with seven wood-rotting and seven leaf litter-rotting basidiomycetes. No specific defense pattern associated with each group of basidiomycete was identified but the number of species forming barrages with pigmented zones was higher in the group of wood decayers. Trichoderma harzianum induced increases in extracellular laccase activities only with some basidiomycete species. The two harzianum had been isolated as mushroom antagonists from two different media. Differences in their aggressiveness resulted in differences in the time given to the basidiomycetes for developing their resistance mechanisms. The biotype Th2 from white button mushroom compost was the stronger antagonist and could be a source of problems in solid state fermentations with different white rot basidiomycetes if it contaminates them.
机译：木霉属之间的拮抗作用。木质纤维素的降解和蘑菇栽培对白腐真菌和白腐真菌很感兴趣。在两个带有七个木头腐烂和七个叶子凋落枯萎的担子菌的两个哈茨木霉菌的菌丝体之间的对抗中，追踪并比较了产生的菌丝，有色弹幕的形成和漆酶的产生。没有发现与每一群担子菌相关的特定防御模式，但是在木材腐烂剂组中形成带有色素区的弹幕的物种数量更高。哈茨木霉仅诱导某些担子菌属物种引起细胞外漆酶活性的增加。已从两种不同的培养基中分离出两种哈氏菌作为蘑菇拮抗剂。它们侵略性的差异导致赋予担子菌建立抗性机制的时间不同。白蘑菇菌堆肥的生物型Th2是更强的拮抗剂，如果污染了不同的白色腐烂担子菌，则可能是固态发酵中出现问题的根源。

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