Abstract
| Original language | English |
|---|---|
| Article number | 135 |
| Journal | FEMS Microbiology Ecology |
| Volume | 95 |
| Issue number | 9 |
| Number of pages | 13 |
| ISSN | 0168-6496 |
| DOIs | |
| Publication status | Published - Sep 2019 |
| MoE publication type | A1 Journal article-refereed |
Fields of Science
- 1181 Ecology, evolutionary biology
- Fungal ecology
- 1172 Environmental sciences
- Carbon cycle
- Volatile organic compounds (VOC)
- 4112 Forestry
- Forest ecology
- Wood biomass
- Wood decay fungi
- 1183 Plant biology, microbiology, virology
- Fungal biology
- Mycology
- Environmental microbiology
- wood-decaying fungi
- wood biodegradation
- white rot
- brown rot
- VOCs
- CAZymes
- oxalic acid
- iron reduction
- Agaricomycetes
- Fomitopsis pinicola
- Phlebia radiata
- Trichaptum abietinum
- BROWN-ROT FUNGI
- LIGNIN MODEL COMPOUNDS
- CONIOPHORA-PUTEANA
- SERPULA-LACRYMANS
- PHLEBIA-RADIATA
- SINGLE-STEP
- DEGRADATION
- EMISSIONS
- CELLULOSE
- SOIL
Cite this
}
Decomposition of spruce wood and release of volatile organic compounds depend on decay type, fungal interactions and enzyme production patterns. / Mali, Tuulia; Mäki, Mari; Hellén, Heidi; Heinonsalo, Jussi; Bäck, Jaana; Lundell, Taina.
In: FEMS Microbiology Ecology, Vol. 95, No. 9, 135, 09.2019.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Decomposition of spruce wood and release of volatile organic compounds depend on decay type, fungal interactions and enzyme production patterns
AU - Mali, Tuulia
AU - Mäki, Mari
AU - Hellén, Heidi
AU - Heinonsalo, Jussi
AU - Bäck, Jaana
AU - Lundell, Taina
PY - 2019/9
Y1 - 2019/9
N2 - Effect of three wood-decaying fungi on decomposition of spruce wood was studied in solid-state cultivation conditions for a period of three months. Two white rot species (Trichaptum abietinum and Phlebia radiata) were challenged by a brown rot species (Fomitopsis pinicola) in varying combinations. Wood decomposition patterns as determined by mass loss, carbon to nitrogen ratio, accumulation of dissolved sugars, and release of volatile organic compounds (VOCs) were observed to depend on both fungal combinations and growth time. Similar dependence of fungal species combination, either white or brown rot dominated, was observed for secreted enzyme activities on spruce wood. Fenton chemistry suggesting reduction of Fe3+ to Fe2+ was detected in the presence of F. pinicola, even in co-cultures, together with substantial degradation of wood carbohydrates and accumulation of oxalic acid. Significant correlation was perceived with two enzyme activity patterns (oxidoreductases produced by white rot fungi; hydrolytic enzymes produced by the brown rot fungus) and wood degradation efficiency. Moreover, emission of four signature VOCs clearly grouped the fungal combinations. Our results indicate that fungal decay type, either brown or white rot, determines the loss of wood mass and decomposition of polysaccharides as well as the pattern of VOCs released upon fungal growth on spruce wood.
AB - Effect of three wood-decaying fungi on decomposition of spruce wood was studied in solid-state cultivation conditions for a period of three months. Two white rot species (Trichaptum abietinum and Phlebia radiata) were challenged by a brown rot species (Fomitopsis pinicola) in varying combinations. Wood decomposition patterns as determined by mass loss, carbon to nitrogen ratio, accumulation of dissolved sugars, and release of volatile organic compounds (VOCs) were observed to depend on both fungal combinations and growth time. Similar dependence of fungal species combination, either white or brown rot dominated, was observed for secreted enzyme activities on spruce wood. Fenton chemistry suggesting reduction of Fe3+ to Fe2+ was detected in the presence of F. pinicola, even in co-cultures, together with substantial degradation of wood carbohydrates and accumulation of oxalic acid. Significant correlation was perceived with two enzyme activity patterns (oxidoreductases produced by white rot fungi; hydrolytic enzymes produced by the brown rot fungus) and wood degradation efficiency. Moreover, emission of four signature VOCs clearly grouped the fungal combinations. Our results indicate that fungal decay type, either brown or white rot, determines the loss of wood mass and decomposition of polysaccharides as well as the pattern of VOCs released upon fungal growth on spruce wood.
KW - 1181 Ecology, evolutionary biology
KW - Fungal ecology
KW - 1172 Environmental sciences
KW - Carbon cycle
KW - Volatile organic compounds (VOC)
KW - 4112 Forestry
KW - Forest ecology
KW - Wood biomass
KW - Wood decay fungi
KW - 1183 Plant biology, microbiology, virology
KW - Fungal biology
KW - Mycology
KW - Environmental microbiology
KW - wood-decaying fungi
KW - wood biodegradation
KW - white rot
KW - brown rot
KW - VOCs
KW - CAZymes
KW - oxalic acid
KW - iron reduction
KW - Agaricomycetes
KW - Fomitopsis pinicola
KW - Phlebia radiata
KW - Trichaptum abietinum
KW - BROWN-ROT FUNGI
KW - LIGNIN MODEL COMPOUNDS
KW - CONIOPHORA-PUTEANA
KW - SERPULA-LACRYMANS
KW - PHLEBIA-RADIATA
KW - SINGLE-STEP
KW - DEGRADATION
KW - EMISSIONS
KW - CELLULOSE
KW - SOIL
U2 - 10.1093/femsec/fiz135
DO - 10.1093/femsec/fiz135
M3 - Article
VL - 95
JO - FEMS Microbiology Ecology
JF - FEMS Microbiology Ecology
SN - 0168-6496
IS - 9
M1 - 135
ER -