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Fungal communities in branch litter of Norway spruce

dead wood dynamics, species detection and substrate preferences.

Allmér, Johan (2005). Fungal communities in branch litter of Norway spruce. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2005:125
ISBN 91-576-6924-4
[Doctoral thesis]

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Abstract

The aim of this thesis was to study the fungal communities on fine woody debris (FWD) of Norway spruce (Picea abies [L.] Karst.) and the importance of FWD as a substrate for these fungi. Three different methods for detecting fungi were used, sporocarp survey, mycelial isolation and ITS T-RFLP. FWD has been suggested to be an important wood component in managed forest where the amount of coarse woody debris (CWD) is scarce. Therefore FWD may act as a substitute substrate for species negatively affected by the decrease in CWD in managed forests. However, slash, i.e. branches and tops, is being removed from about 50 % of the clear-cut sites in southern Sweden and about 70 % of the slash is removed from the clear-cut. So far no studies has been undertaken to investigate the possible effects of slash removal on wood-inhabiting fungal communities. This thesis indicate that FWD host numerous fungal species, but essentially all of them are also found on other fractions like CWD and that species primary confined to CWD are essentially missing on FWD, except for some species that occurred on tree tops. Different types of dead plant matter in the litter layer is largely colonised by the same fungal species. The strategy of the species utilising plant litter with little or even without discrimination to the type of substrate seems successful as they represent at least a third of the fungal community in the forest floor. It is apparent that litter from needle and fine roots form the greater part of the decomposed plant matter during a forest generation, while wood, and particularly CWD constitute a minor part, 20-30%. No differences in species composition due to slash removal could be detected at site level, nor could any differences be detected when comparing substrate types separately. Thus, the results suggest that slash removal after clear-cutting have a negligible long-term impact on the saprotrophic fungal community, at least under the experimental conditions used.

Authors/Creators:Allmér, Johan
Title:Fungal communities in branch litter of Norway spruce
Subtitle:dead wood dynamics, species detection and substrate preferences.
Year of publishing :November 2005
Volume:2005:125
Number of Pages:29
Papers/manuscripts:
NumberReferences
ALLAllmér, J., Vasiliauskas, R., Ihrmark, K., Stenlid, J., and Dahlberg, A. (2005) Wood-inhabiting fungal communities in woody debris of Norway spruce (Picea abies (L.) Karst.): as reflected by sporocarps, mycelial isolations and T-RFLP-identification. FEMS Microbiology and Ecology. In press. Allmér, J., Stenlid, J., and Dahlberg, A. ITS T-RFLP identification of fungi colonising wood and needle baits show negligible effects of slash removal in in Norway spruce stands after 25 years. Submitted manuscript Allmér, J., Stenlid, J., and Dahlberg, A. Fungal communities on fine woody debris of norway spruce (Picea abies [L.] Karst.) in clear-cuts, thinned and old-growth forests in east-central Sweden. Manuscript. Dahlberg, A. Allmér, J., Kruys, N., Nyström, K., Hyvönen R., Ågren, G. & Majdi, H. Carbon availability in litter for saprotrophic fungi in Norway spruce forests: a modelling approach of mass and flux of dead plant matter from the tree-, field- and bottom-layer. Manuscript. Menkis, A., Allmér, J., Vasiliauskas, R., Lygis, V., Stenlid, J & Finlay, R. (2002) Ecology and molecular characterization of dark septate fungi from roots, stems, coarse and fine woody debris. Mycological Research 108, 965-973.
Place of Publication:Uppsala
ISBN for printed version:91-576-6924-4
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:F Plant production > F40 Plant ecology
H Protection of plants and stored products > H20 Plant diseases
Subjects:Not in use, please see Agris categories
Agrovoc terms:picea abies, deadwood, plant pathology, forest pathology, slash, forest ecology, fungal morphology, fungi, fungal spores, sweden
Keywords:Picea abies, fungi, woody debris, FWD, slash, T-RFLP, sporocarps, mycelia, Old growth, clear cut.
URN:NBN:urn:nbn:se:slu:epsilon-836
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-836
ID Code:993
Department:(S) > Institutionen för skoglig mykologi och patologi
Deposited By: Johan Allmér
Deposited On:30 Nov 2005 00:00
Metadata Last Modified:02 Dec 2014 10:08

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