Effect of environmental changes (temprature and moisture) on destructive behaviour of the white rot fungus Trametes versicolor on chestnut-leaved oak

Document Type : Research Paper

Authors

1 Ph.D. student, Department of forestry, Faculty of natural resources, University of Guilan, Guilan, Iran

2 Associate prof., Department of forestry, Faculty of natural resources, University of Guilan, Guilan, Iran

3 Associate prof., Department of wood science and technology, Faculty of natural resources, University of Tehran, Karaj, Iran

4 Associate prof., Department of mycology and plant pathology college of agronomic sciences, agriculture and natural resources university, Sari, Iran

Abstract

The aim of this study was to determinate the destructive behaviors of the white rot fungus Trametes versicolor on oak at different ambient temperatures and moistures. Hence, test fungus was collected from Khararod forest and after puricication, it was verified in the NCBI by molecular method. Thereafter, the wood samples were cut and exposed to fungus for mass loss determination at three temperature (10, 20, 30°C) and three relative humidity levels (45, 65, 85%) for 8 weeks. Destructive patterns of decayed wood sample was also examinate by microscopic method. The results indicated that a change in moisture content was more influential on destructive behaviour of fungus than temperature. Moreover, 20°C of temprature and 65% of relative humidity was the optimal environment for fungal activations. On the other hand, the microscopic investigations showed that Trametes versicolor produce simultaneous whit rot at all exposing conditions. Hence, it can be concluded that a shift in destructive behavior of this fungus which has already been reported is influenced by environmental factors other than temperature and moisture content

Keywords

References

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Iranian Journal of Wood and Paper Industries
Volume 9, Issue 1
June 2018
Pages 75-85

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