Noll, L; Leonhardt, SD; Arnstadt, T; Hoppe, L; Poll, C; Matzner, E; Hofrichter, M; Kellner, H: Fungal biomass and extracellular enzyme activitis in coarse woody debris of 13 tree species in the early phase of decomposition, Forest Ecology and Management, 378, 181-192 (2016), doi:10.1016/j.foreco.2016.07.035
Abstract:
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 years on the ground. Fungal biomass was significantly higher in sapwood than in heartwood and higher in deciduous 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 higher in 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 confirm the assumption that, in the initial stage, the decomposition of deciduous CWD is faster than of coniferous CWD under comparable conditions.
Upcoming ...



BayCEER Colloquium:
Th. 2019-11-14
Analysis of ozone formation and trend over northern Bavaria by using stochastic and deterministic models
Th. 2019-11-21
Quantification of subsurface properties using the groundwater response to Earth and atmospheric tides
Conferences:
Fr. 2019-11-22
Geoökologie-Tagung 2019
Talk:
Fr. 2019-11-15
Changing the game in Earth Observation - The European Union’s Copernicus programme -
Universitäts-Forum Bayreuth:
We. 2019-11-13
Bayreuther Innenstadt und Rotmaincenter: Freund oder Feind? - Betrachtungen aus der Perspektive der Besucher
BayCEER Blog
24.05.2019
Stoichiometric controls of C and N cycling
07.05.2019
Flying halfway across the globe to dig in the dirt – a research stay in Bloomington, USA
07.05.2019
EGU – interesting research and free coffee
16.04.2019
Picky carnivorous plants?
RSS Blog as RSS Feed
Weather research site
Luftdruck (356m): 964.1 hPa
Lufttemperatur: 5.5 °C
Niederschlag: 0.4 mm/24h
Sonnenschein: 2 h/d
Wind (Höhe 17m): 7.1 km/h
Wind (Max.): 18.0 km/h
Windrichtung: S

...more
Globalstrahlung: 198 W/m²
Lufttemperatur: 2.1 °C
Niederschlag: 0.4 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 10.6 km/h

...more
This site makes use of cookies More information