Earticle

초록

영어

Decay fungi can decompose plant debris to recycle carbon in the ecosystem. Still, they can also be fungal pathogens, which can damage living trees and/or wood material and cause a large amount of timber loss. We isolated and identified basidiomycetous fungi from the decayed bark of Mongolian oak wrapped with sticky roll traps. The degrading enzyme activities were then tested for all fungal isolates. The decay ability of selected isolates was assessed based on the weight loss of wood discs after inoculating with culture suspension of decay fungi under the different humidity levels. A total of 46 basidiomycetous fungal isolates belonged to 12 species, and 10 genera were obtained from Jong Myo (16 isolates), Chang Kyung palace (7 isolates), Cheong Gye (10 isolates), and Gun Po (13 isolates). Gymnopus luxurians was the most dominant fungus in the present study, and this species distributed in all survey sites with 9 isolates in Jong Myo, followed by 3 isolates in Chang Kyung palace, while Cheong Gye and Gun Po had only 1 isolate each. Among 46 isolates, 44 isolates secreted at least one enzyme, while 25 isolates produced both cellulase and phenol oxidase enzymes, and 2 isolates produced neither. The assessment of decay ability by artificial inoculation indicated that the weight loss of wood discs was significantly influenced by humidity conditions when inoculated with bark decay fungi. The percent weight losses by G. luxurians inoculation in RH of 90-100% and RH of 65-75% were 4.61% and 2.45%, respectively. The weight loss caused by Abortiporus biennis were 6.67% and 0.46% in RH of 90-100% and RH of 45-55%, respectively. The humidity reduction approach should be applied for further studies to control the growth and spread of bark decay fungi on the trunks wrapped with sticky roll traps.

목차

Abstract
Introduction
Materials and Methods
Sample collection and isolation of decay fungi
Molecular identification of bark decay fungi
Cellulase activity test
Phenol oxidase activity test
Wood disc preparation and culture suspension inoculation
Statistical analyses
Results and Discussion
Isolation and identification
Enzyme production by bark decay fungi
Bark decay evaluation by selected fungal isolates
Acknowledgements
References

키워드

저자

• Manh Ha Nguyen [ Tree Pathology and Mycology Laboratory, College of Forest and Environmental Sciences, Kangwon National University, Forest Protection Research Center, Vietnamese Academy of Forest Sciences, Hanoi 100 000, Vietnam ]
• Dae Ho Kim [ Tree Pathology and Mycology Laboratory, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea ]
• Ji Hyun Park [ Department of Forest Insects and Diseases, National Institute of Forest Science, Seoul 02455, Republic of Korea ]
• Young Ui Park [ Green Space Corporation, Gwacheon 13821, Republic of Korea ]
• Moo Yeul Lee [ Green Space Corporation, Gwacheon 13821, Republic of Korea ]
• Myeong Hee Choi [ Green Space Corporation, Gwacheon 13821, Republic of Korea ]
• Dong Ho Lee [ Green Space Corporation, Gwacheon 13821, Republic of Korea ]
• Jong Kyu Lee [ Tree Pathology and Mycology Laboratory, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634