بررسی بیولوژی قارچ رنگین کمان و اثرات آن روی چوب راش

Biological investigation of Trametes versicolor (L.:Fr.)pilat and it s effects on beech wood. This research started in 1991. The first collected samples from infected woods and then they were transfered to the laboratory in Alborz Research Center.Samples were studied by microscop and culture on MEA medium and then pure culture was transfered on beech wood dust as substrate. The first stage included vegetative growth and mycelial reproduction. In this stage cultures were placed at 25 oC. When mycelial growth was completed, Color of medium became white. In this time, the cultures maintained at 15 oC and 75-90% R.H and 12 hours light exposure with proper ventilation.The vegetative growth period took place almost 2 months. Also sound beech wood pieces were inoculated by T. versicolor to determine the rate of decay. This project finished in 1995 and it,s results were: 1-In 25 to 30 degree centigrade, the mycelia hgihest growth rate and wood-destroying was observed. 2-In biological cycle investigation of Trametes Versicolor including of spore germination, mycelia development, fruitbody production and at the last stage spore reproduction took place one year. 3-In laboratory condition, this fungus decreased 59% of beech wood weight. 4-This research results demonstrated that for wood protection, our traditional forest should change to mechanized forest. Key words: Trametes versicolor Beech wood Biology Growth - Destroy Protection.