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Fungal biomass and extracellular enzyme activitis in coarse woody debris of 13 tree species in the early phase of decomposition

Title data

Noll, Lisa ; Leonhardt, Sabrina ; Arnstadt, Tobias ; Hoppe, Björn ; Poll, Christian ; Matzner, Egbert ; Hofrichter, Martin ; Kellner, Harald:
Fungal biomass and extracellular enzyme activitis in coarse woody debris of 13 tree species in the early phase of decomposition.
In: Forest Ecology and Management. Vol. 378 (October 2016) . - pp. 181-192.
ISSN 0378-1127
DOI: https://doi.org/10.1016/j.foreco.2016.07.035

Abstract in another language

Decomposition rates of coarse woody debris (CWD) have been investigated in many studies, however data on fungal biomass and the related enzymatic activities in decomposing CWD are scarce. Here, we investigated the relations between fungal biomass, enzyme activities and CWD properties in sap- and heartwood of decomposing logs of 13 different temperate European tree species, exposed for 6 yearson the ground. Fungal biomass was significantly higher in sapwood than in heartwood and higher indeciduous than in coniferous species, and represented 0.3–4.4% of CWD dry mass. In deciduous sapwood, fungal biomass may represent up to 29% of the total N stock in CWD. Fungal biomass correlated positively with the N content of CWD and, in heartwood, negatively with extractives. Enzyme activities were higherin deciduous than in coniferous CWD and for hydrolases higher in sapwood than in heartwood.Correlations between enzyme activities and the ergosterol content were generally weak. Hydrolytic enzymes were frequently found in all decaying tree species, whereas ligninolytic oxidoreductases showed high variability specifically in deciduous wood. Fungal biomass and enzymatic activities confirmthe assumption that, in the initial stage, the decomposition of deciduous CWD is faster than of coniferous CWD under comparable conditions.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER133019
Keywords: Dead wood decomposition; Temperate forests; Lignocellulolytic enzymes; Nitrogen content; Deciduous and coniferous trees
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Soil Ecology - Univ.-Prof. Dr. Egbert Matzner
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 17 Jan 2018 13:06
Last Modified: 17 Jan 2018 13:06
URI: https://eref.uni-bayreuth.de/id/eprint/41380