Fungi colonizing Douglas-fir in cooling towers: Identification and their decay capabilities

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This study was performed to identify microfungi isolated from chromated copper arsenate (CCA) treated-Douglas-fir members in cooling towers, and to test for their capacities to cause weight loss, anatomical damage, and strength losses in Douglas-fir and Keruing heartwood. Among 26 fungal species isolated, Acremonium sp., Fusarium spp., Trichoderma spp., Phialophora spp., and Alternaria alternata were most frequently isolated, constituting approximately 75% of all isolates. Half of the fungi, representing about 60% of all isolates, caused soft-rot damage. Microscopic examination revealed that most of the fungi eroded the cell wall (Type 2 damage), and soft-rot types did not differ with wood species. Strength reductions by fungal attack were not significant compared to controls although one fungal species (Monocillium sp. KUC 3016) produced significant strength loss on Douglas-fir, and three species (Gonabotrys simplex, Phialophora mutabilis KUC 3022, and Phialophora mutabilis KUC 3039) caused significant strength loss on Keruing. The results indicate that some soft-rot fungi can affect wood properties significantly, and their potential to affect the service life of wood members in cooling towers must be considered.

Original languageEnglish
Pages (from-to)638-642
Number of pages5
JournalWood and Fiber Science
Volume37
Issue number4
Publication statusPublished - 2005 Oct 1

Fingerprint

Phialophora
Cooling towers
Fungi
Pseudotsuga menziesii
cooling
deterioration
fungus
Wood
fungi
soft-rot fungi
chromated copper arsenate
damage
Acremonium
wood properties
Alternaria alternata
heartwood
Trichoderma
durability
Fusarium
arsenate

Keywords

  • Anatomical damage
  • Cooling tower
  • Douglas-fir
  • Keruing
  • Maximum crushing strength
  • Soft-rot
  • Weight loss

ASJC Scopus subject areas

  • Forestry
  • Plant Science
  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)

Cite this

Fungi colonizing Douglas-fir in cooling towers : Identification and their decay capabilities. / Kim, Gyu Hyeok; Son, Dae S.; Kim, Jae-Jin.

In: Wood and Fiber Science, Vol. 37, No. 4, 01.10.2005, p. 638-642.

Research output: Contribution to journalArticle

@article{2089db07a1014628a9e5d94f8f7a0946,
title = "Fungi colonizing Douglas-fir in cooling towers: Identification and their decay capabilities",
abstract = "This study was performed to identify microfungi isolated from chromated copper arsenate (CCA) treated-Douglas-fir members in cooling towers, and to test for their capacities to cause weight loss, anatomical damage, and strength losses in Douglas-fir and Keruing heartwood. Among 26 fungal species isolated, Acremonium sp., Fusarium spp., Trichoderma spp., Phialophora spp., and Alternaria alternata were most frequently isolated, constituting approximately 75{\%} of all isolates. Half of the fungi, representing about 60{\%} of all isolates, caused soft-rot damage. Microscopic examination revealed that most of the fungi eroded the cell wall (Type 2 damage), and soft-rot types did not differ with wood species. Strength reductions by fungal attack were not significant compared to controls although one fungal species (Monocillium sp. KUC 3016) produced significant strength loss on Douglas-fir, and three species (Gonabotrys simplex, Phialophora mutabilis KUC 3022, and Phialophora mutabilis KUC 3039) caused significant strength loss on Keruing. The results indicate that some soft-rot fungi can affect wood properties significantly, and their potential to affect the service life of wood members in cooling towers must be considered.",
keywords = "Anatomical damage, Cooling tower, Douglas-fir, Keruing, Maximum crushing strength, Soft-rot, Weight loss",
author = "Kim, {Gyu Hyeok} and Son, {Dae S.} and Jae-Jin Kim",
year = "2005",
month = "10",
day = "1",
language = "English",
volume = "37",
pages = "638--642",
journal = "Wood and Fiber Science",
issn = "0735-6161",
publisher = "Allen Press Inc.",
number = "4",

}

TY - JOUR

T1 - Fungi colonizing Douglas-fir in cooling towers

T2 - Identification and their decay capabilities

AU - Kim, Gyu Hyeok

AU - Son, Dae S.

AU - Kim, Jae-Jin

PY - 2005/10/1

Y1 - 2005/10/1

N2 - This study was performed to identify microfungi isolated from chromated copper arsenate (CCA) treated-Douglas-fir members in cooling towers, and to test for their capacities to cause weight loss, anatomical damage, and strength losses in Douglas-fir and Keruing heartwood. Among 26 fungal species isolated, Acremonium sp., Fusarium spp., Trichoderma spp., Phialophora spp., and Alternaria alternata were most frequently isolated, constituting approximately 75% of all isolates. Half of the fungi, representing about 60% of all isolates, caused soft-rot damage. Microscopic examination revealed that most of the fungi eroded the cell wall (Type 2 damage), and soft-rot types did not differ with wood species. Strength reductions by fungal attack were not significant compared to controls although one fungal species (Monocillium sp. KUC 3016) produced significant strength loss on Douglas-fir, and three species (Gonabotrys simplex, Phialophora mutabilis KUC 3022, and Phialophora mutabilis KUC 3039) caused significant strength loss on Keruing. The results indicate that some soft-rot fungi can affect wood properties significantly, and their potential to affect the service life of wood members in cooling towers must be considered.

AB - This study was performed to identify microfungi isolated from chromated copper arsenate (CCA) treated-Douglas-fir members in cooling towers, and to test for their capacities to cause weight loss, anatomical damage, and strength losses in Douglas-fir and Keruing heartwood. Among 26 fungal species isolated, Acremonium sp., Fusarium spp., Trichoderma spp., Phialophora spp., and Alternaria alternata were most frequently isolated, constituting approximately 75% of all isolates. Half of the fungi, representing about 60% of all isolates, caused soft-rot damage. Microscopic examination revealed that most of the fungi eroded the cell wall (Type 2 damage), and soft-rot types did not differ with wood species. Strength reductions by fungal attack were not significant compared to controls although one fungal species (Monocillium sp. KUC 3016) produced significant strength loss on Douglas-fir, and three species (Gonabotrys simplex, Phialophora mutabilis KUC 3022, and Phialophora mutabilis KUC 3039) caused significant strength loss on Keruing. The results indicate that some soft-rot fungi can affect wood properties significantly, and their potential to affect the service life of wood members in cooling towers must be considered.

KW - Anatomical damage

KW - Cooling tower

KW - Douglas-fir

KW - Keruing

KW - Maximum crushing strength

KW - Soft-rot

KW - Weight loss

UR - http://www.scopus.com/inward/record.url?scp=27844544775&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27844544775&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:27844544775

VL - 37

SP - 638

EP - 642

JO - Wood and Fiber Science

JF - Wood and Fiber Science

SN - 0735-6161

IS - 4

ER -