Velmala, S.M., Rajala, T., Haapanen, M., Taylor, A.F.S. & Pennanen, T. 2013. Genetic host-tree effects on the ectomycorrhizal community and root characteristics of Norway spruce. Mycorrhiza 23(1): 21-33. [CrossRef]
Kataja-Aho, S., Pennanen, T., Lensu, A. & Haimi, J. 2012. Does stump removal affect early growth and mycorrhizal infection of spruce (Picea abies) seedlings in clear-cuts? Scandinavian Journal of Forest Research 27: 746-753. [CrossRef]
Kähkölä, A.-K., Nygren, P., Leblanch, H.A., Pennanen, T. & Pietikäinen. J. 2012. Leaf and root litter of a legume tree as nitrogen sources for cacaos with different root colonisation by arbuscular mycorrhizae. Nutrient Cycling in Agroecosystems 92: 51-65. [CrossRef]
Peltoniemi, K., Straková, P., Fritze, H., Iráizoz, P.A., Pennanen, T. & Laiho, R. 2012. How water-level drawdown modifies litter decomposing fungal and actinobacterial communities in boreal peatlands. Soil Biology & Biochemistry 51: 20-34. [CrossRef]
Rajala, T., Peltoniemi, M., Pennanen, T. & Mäkipää, R. 2012. Fungal community dynamics in relation to substrate quality of decaying Norway spruce (Picea abies [L.] Karst.) logs in boreal forests. FEMS Microbiology Ecology 81(2): 494-505. [CrossRef]
Vaario, L.-M., Heinonsalo, J., Spetz, P., Pennanen, T., Heinonen, J., Tervahauta, A. & Fritze, H. 2012. The ectomycorrhizal fungus Tricholoma matsutake is a facultative saprotroph in vitro. Mycorrhiza 22(6): 409-418. [CrossRef]
Nieminen, M., Laurén, A., Hökkä, H., Sarkkola, S., Koivusalo, H. & Pennanen, T. 2011. Recycled iron phosphate as a fertilizer raw material for tree stands on drained boreal peatlands. Forest Ecology and Management 261: 105-110. [CrossRef]
Nilsson, R.H., Tedersoo, L., Lindahl, B., Kjøller, R., Carlsen, T., Quince C., Abarenkov, K., Pennanen, T., Stenlid, J., Bruns, T., Larsson, K.-H., Kõljalg, U. & Kauserud, H. 2011. Towards standardization of the description and publication of next-generation sequencing datasets of fungal communities. New Phytologist 191: 314-319. [CrossRef]
Rajala, T., Peltoniemi, M., Hantula, J., Mäkipää, R. & Pennanen, T. 2011. RNA reveals a succession of active fungi during the decay of Norway spruce logs. Fungal Ecology 4(6): 437-448. [CrossRef]
Vaario, L.-M., Fritze, H., Spetz, P., Heinonsalo, J., Hanajík, P. & Pennanen, T. 2011. Tricholoma matsutake dominates diverse microbial communities in different forest soils. Applied and Environmental Microbiology 77(24): 8523-8531. [CrossRef]
Abarenkov, K., Nilsson, R.H. Larsson, K.-H., Alexander, I.J., Eberhardt, U., Erland, S., Høiland, K., Kjøller, R., Larsson, E., Pennanen, T., Sen, R., Taylor, A.F.S., Tedersoo, L., Ursing, B.M., Vrålstad, T., Liimatainen K., Peintner, U. & Kõljalg, U. 2010. The UNITE database for molecular identification of fungi - recent updates and future perspectives. New Phytologist 186(2): 281-285. [CrossRef]
Kalliokoski, T., Pennanen, T., Nygren, P., Sievänen, R. & Helmisaari, H.-S. 2010. Belowground interspecific competition in mixed boreal forests: fine root and ectomycorrhiza characteristics along stand developmental stage and soil fertility gradients. Plant and Soil 330: 73-89. [CrossRef]
Ovaskainen, O., Nokso-Koivisto, J., Hottola, J., Rajala, T., Pennanen, T., Ali-Kovero, H., Miettinen, O., Oinonen, P., Auvinen, P., Paulin, L., Larsson, K.-H. & Mäkipää, R. 2010. Identifying wood-inhabiting fungi with 454 sequencing - What is the probability that BLAST gives the correct species? Fungal Ecology 3: 274-283. [CrossRef]
Rajala, T., Peltoniemi, M., Pennanen, T. & Mäkipää, R. 2010. Relationship between wood-inhabiting fungi determined by molecular analysis (denaturing gradient gel electrophoresis) and quality of decaying logs. Canadian Journal of Forest Research 40: 2384-2397. [CrossRef]
Vaario, L.-M., Pennanen, T., Sarjala, T., Savonen, E.-M. & Heinonsalo, J. 2010. Ectomycorrhization of Tricholoma matsutake and two major conifers in Finland - An assessment of in vitro mycorrhiza formation. Mycorrhiza 20: 511-518. [CrossRef]
Vaario, L.-M., Tervonen, A., Haukioja, K., Haukioja, M., Pennanen, T. & Timonen, S. 2009. The effect of nursery substrate and fertilization on the growth and ectomycorrhizal status of containerized and outplanted seedlings of Picea abies. Canadian Journal of Forest Research 39(1): 64-75. [CrossRef]
Flykt, E., Timonen, S. & Pennanen, T. 2008. Variation of ectomycorrhizal colonization of spruce seedlings in Finnish forest nurseries. Silva Fennica 42(4): 571-585. [pdf]
Jaatinen, K., Laiho, R., del Castillo, U., Vuorenmaa, A., Minkkinen, K., Pennanen, T., Penttilä, T. & Fritze, H. 2008. Responses of aerobic microbial communities and soil respiration to water-level drawdown in a northern boreal fen. Environmental Microbiology 10: 339-353. [CrossRef]
Korkama-Rajala, T., Müller, M.M. & Pennanen, T. 2008. Decomposition and fungi of needle litter from slow- and fast-growing Norway spruce (Picea abies) clones. Microbial Ecology 56: 76-89. [CrossRef]
Rantalainen, M.-L., Haimi, J., Fritze, H., Pennanen, T. & Setälä, H. 2008. Soil decomposer community as a model system in studying the effects of habitat fragmentation and habitat corridors. Soil Biology & Biochemistry 40: 853-863. [CrossRef]
Korkama, T., Fritze, H., Kiikkilä, O. & Pennanen, T. 2007. Do same-aged but different height Norway spruce (Picea abies) clones affect soil microbial community? Soil Biology & Biochemistry 39(9): 2420-2423. [CrossRef]
Korkama, T., Fritze, H., Pakkanen, A. & Pennanen, T. 2007. Interactions between extraradical ectomycorrhizal mycelia, microbes associated with the mycelia and growth rate of Norway spruce (Picea abies) clones. New Phytologist 173: 798-807. [CrossRef]
Korkama, T., Pakkanen, A. & Pennanen, T. 2006. Ectomycorrhizal community structure varies among Norway spruce (Picea abies) clones. New Phytologist 171(4): 815-824. [CrossRef]
Kõljalg, U., Larsson, K.-H., Abarankov, K., Nilsson, H.R., Alexander, I., Eberhardt, U., Erland, S., Hoiland, K., Kjøller, R., Larsson, E., Pennanen, T., Sen, R., Taylor, A.F.S., Tedersoo, L., Vrålstad, T. & Ursing, B.M. 2005. UNITE - a database providing web-based methods for the molecular identification of ectomycorrhizal fungi. New Phytologist 166(3): 1063-1068. [CrossRef]
Pennanen, T., Heiskanen, J. & Korkama, T. 2005. Dynamics of ectomycorrhizal fungi and growth of Norway spruce seedlings after planting on a mounded forest clearcut. Forest Ecology and Management 213: 243-252. [CrossRef]
Rantalainen, M.-L., Fritze, H., Haimi, J., Pennanen, T. & Setälä, H. 2005. Colonisation of newly established habitats by soil decomposer organisms: the effect of habitat corridors in relation to colonisation distance and habitat size. Applied Soil Ecology 28: 67-77. [CrossRef]
Rantalainen, M.-L., Fritze, H., Haimi, J., Pennanen, T. & Setälä, H. 2005. Species richness and food web structure of soil decomposer community as affected by the scale of habitat fragmentation and habitat corridors. Global Change Biology (online) 11: 1614-1627. [CrossRef]
Pennanen, T., Caul, S., Daniell, T.J., Griffiths, B.S., Ritz, K. & Wheatley, R.E. 2004. Community-level responses of metabolically-active soil microorganisms to the quantity and quality of substrate inputs. Soil Biology & Biochemistry 36(5): 841-848. [CrossRef]
Rantalainen, M.-L., Fritze, H., Haimi, J., Kiikkilä, O., Pennanen, T. & Setälä, H. 2004. Do enchytraeid worms and habitat corridors facilitate the colonisation of habitat patches by soil microbes? Biology and Fertility of Soils 39: 200-208. [CrossRef]
Kiikkilä, O., Pennanen, T., Perkiömäki, J., Derome, J. & Fritze, H. 2002. Organic material as a copper immobilising agent: a microcosm study on bioremediation. Basic and Applied Ecology 3(3): 245-253. [CrossRef]
Liiri, M., Setälä, H., Haimi, J., Pennanen, T. & Fritze, H. 2002. Relationship between soil microarthropod species diversity and plant growth does not change when the system is disturbed. Oikos 96: 137-149. [CrossRef]
Liiri, M., Setälä, H., Haimi, J., Pennanen, T. & Fritze, H. 2002. Soil processes are not influenced by the functional complexity of soil decomposer food webs under disturbance. Soil Biology & Biochemistry 34(7): 1009-1020. [CrossRef]
Fritze, H., Perkiömäki, J., Petänen, T., Pennanen, T., Romantschuck, M., Karp, M. & Yrjälä, K. 2001. A microcosmos study on the effects of Cd-containing wood ash on the coniferous forest humus fungal community and Cd bioavailability. Journal of Soils and Sediments 1(3): 146-150. [CrossRef] [url]
Kiikkilä, O., Perkiömäki, J., Barnette, M., Derome, J., Pennanen, T., Tulisalo, E. & Fritze, H. 2001. In situ bioremediation through mulching of soil polluted by a copper-nickel smelter. Journal of Environmental Quality 30: 1134-1143. [url]
Liiri, M., Setälä, H., Haimi, J., Pennanen, T. & Fritze, H. 2001. Influence of Cognettia spaghnetorum (Enchytraeidae) on birch growth and microbial activity, composition and biomass in soil with or without wood ash. Biology and Fertility of Soils 34: 185-195. [CrossRef]
Pennanen, T. 2001. Microbial communities in boreal coniferous forest humus exposed to heavy metals and changes in soil pH - a summary of the use of phospholipid fatty acids, Biologâ and 3H-thymidine incorporation methods in field studies. Geoderma 100: 91-126. [CrossRef]
Pennanen, T., Paavolainen, L, & Hantula, J. 2001. Rapid PCR-based method for the direct analysis of fungal communities in complex environmental samples. Soil Biology & Biochemistry 33: 697-699. [CrossRef]
Pennanen, T., Strömmer, R., Markkola, A. & Fritze, H. 2001. Microbial and plant community structure across a primary succession gradient. Scandinavian Journal of Forest Research 16: 37-43. [CrossRef]
Priha, O., Grayston, S.J., Hiukka, R., Pennanen, T. & Smolander, A. 2001. Microbial community structure and characteristics of the organic matter in soils under Pinus sylvestris, Picea abies and Betula pendula at two forest sites. Biology and Fertility of Soils 33: 17-24. [CrossRef]
Fritze, H., Pietikäinen, J. & Pennanen, T. 2000. Distribution of microbial biomass and phospholipid fatty acids in Podzol profiles under coniferous forest. European Journal of Soil Science 51: 565-573. [CrossRef]
Kiikkilä, O., Pennanen, T., Pietikäinen, J. & Fritze, H. 2000. Some observations on the copper tolerance of bacterial communities using the 3H-thymidine incorporation method in heavy metal polluted humus. Soil Biology & Biochemistry 32: 883-885. [CrossRef]
Fritze, H., Tikka, P., Pennanen, T., Saano, A., Jurgens, A., Nilsson, M., Bergman, I. & Kitunen, V. 1999. Detection of Archaeal diether lipid by gas chromatography from humus and peat. Scandinavian Journal of Forest Research 14: 545-551. [CrossRef]
Ohtonen, R., Fritze, H., Pennanen, T., Jumpponen, A. & Trappe, T. 1999. Ecosystem properties and microbial community changes in primary succession on a glacier forefront. Oecologia 119(2): 239-246. [CrossRef]
Pennanen, T., Liski, J., Bååth, E., Kitunen, V., Uotila, J., Westman, C.-J. & Fritze, H. 1999. Structure of the microbial communities in coniferous forest soils in relation to site fertility and stand development stage. Microbial Ecology 38: 168-179. [CrossRef]
Priha, O., Grayston, S.J., Pennanen, T. & Smolander, A. 1999. Microbial activities related to C and N cycling and microbial community structure in the rhizospheres of Pinus sylvestris, Picea abies and Betula pendula seedlings in an organic and mineral soil. FEMS Microbiology Ecology 30: 187-199. [CrossRef]
Fritze,, H., Pennanen, T. & Kitunen, V. 1998. Characterization of dissolved organic carbon from burned humus and its effects on microbial activity and community structure. Soil Biology & Biochemistry 30(6): 687-693. [CrossRef]
Pennanen, T. 1998. Structure of the microbial communities in boreal coniferous forest humus exposed to heavy metals and changes in soil pH. Helsingin yliopisto, biotieteiden laitos. Väitöskirja. 49 s. + 6 osajulk. ISBN 951-715-304-X
Pennanen, T., Fritze, H., Vanhala, P., Kiikkilä, O., Neuvonen, S. & Bååth, E. 1998. Structure of a microbial community in soil after prolonged addition of low levels of simulated acid rain. Applied and Environmental Microbiology 64(6): 2173-2180. [url]
Pennanen, T., Perkiömäki, J., Kiikkilä, O., Vanhala, P., Neuvonen, S. & Fritze, H. 1998. Prolonged, simulated acid rain and heavy metal deposition: separated and combined effects on forest soil microbial community structure. FEMS Microbiology Ecology 27: 291-300. [CrossRef]
Fritze,, H., Pennanen, T. & Vanhala, P. 1997. Impact of fertilizers on the humus layer microbial community of Scots pine stands growing along a gradient of heavy metal pollution. In: Insam, H. & Rangger, A. (eds.). Microbial communities: Functional versus structural approaches. Springer-Verlag, Berlin. p. 68-83. ISBN 3-540-62405-8
Kortemaa, H., Pennanen, T., Smolander, A. & Haahtela, K. 1997. Distribution of antagonistic Streptomyces griseoviridis in rhizosphere and non-rhizosphere sand. Journal of Phytopathology 145: 137-143. [url]
Pennanen, T., Frostegård, Å., Fritze, H. & Bååth, E. 1996. Phospolipid fatty acid composition and heavy metal tolerance of soil microbial communities along two heavy metal-polluted gradients in coniferous forests. Applied and Environmental Microbiology 62(2): 420-428. [url]
Bååth, E., Frostegård, Å., Pennanen, T. & Fritze, H. 1995. Microbial community structure and pH response in relation to soil organic matter quality in wood-ash fertilized, clear-cut or burned coniferous forest soil. Soil Biology & Biochemistry 27(2): 229-240. [CrossRef] [pdf]
Rönkkö, R., Pennanen, T., Smolander, A., Kitunen, V., Kortemaa, H. & Haahtela, K. 1994. Quantification of Frankia strains and other root-associated bacteria in pure cultures and in the rhizosphere of axenic seedlings by high-performance liquid chromatography-based muramic acid assay. Applied and Environmental Microbiology 60(10): 3672-3678. [url] [url]
Rajala, T., Peltoniemi, M., Valentin-Carrera, L., Pennanen, T. & Mäkipää, R. 2012. Sienidiversiteetin merkitys puiden lahoamisprosessissa ja taimien kasvussa. Metsätieteen aikakauskirja 2/2012: 142-146. [pdf] [html]
Pennanen, T. & Müller, M. 2011. Kuusentaimien juuristosienet ja niiden merkitys taimien alkukehitykselle. Metsätieteen aikakauskirja 1/2011: 60-62.
Vaario, L.-M., Heinonsalo, J., Spetz, P., Pennanen, T. & Fritze, H. 2011. Tricholoma matsutake - an ectomycorrhizal fungus, lives between symbiotic and saprophytic when need arises. In: Proceedings of the 7th International Conference on Mushroom Biology and Mushroom Products, 4-7 October, 2011, Arcachon, France. Vol. 1. p. 500-505.
Vaario, L.-M., Heinonsalo, J., Savonen, E.-M., Sarjala, T. & Pennanen, T. 2009. Evaluating the role of shiro formation of Tricholoma matsutake in situ. Identification of Matsutake shiro and its fungal community. In: Soinne, H., Helmisaari, H.-S., Hänninen, P., Kähkönen, M., Rankinen, K. & Esala, M. (eds.). Maaperä muuttuvassa maailmassa. V Maaperätieteiden päivät, Helsinki 8.-9.1.2009. Laajennetut abstraktit. Pro Terra 41: 34-35. ISBN 978-952-10-5246-0 [pdf]
Bidartondo, M.I. et al. (259 authors, from FFRI Pennanen, T.). 2008. Preserving accuracy in GenBank (Letters -osiossa). Science 319: 1616. [CrossRef]
Korkama, T., Fritze, H., Kiikkilä, O., Pakkanen, A. & Pennanen, T. 2005. Kuusen genotyyypin vaikutus ektomykorritsasieniyhteisöön ja maaperämikrobeihin. The impact of genotype of Norway spruce on ectomycorrhizal community and soil microbes. Julkaisussa: Siimes, K., Makkonen, K., Pietikäinen, J., Mattila, P., Penttinen, S. & Esala, M. (toim.). Maaperän vuorovaikutukset. III Maaperätieteiden päivien laajennetut abstraktit. Pro Terra 22: 55-56. [pdf]
Potila, H., Pennanen, T., Fritze, H., Korkama, T., Hartman, M. & Sarjala, T. 2005. Onko lämpösummalla vaikutusta mikrobiyhteisön rakenteeseen ojitetulla turvemaalla? Does temperature sum affect microbial community on drained peatlands? Julkaisussa: Siimes, K., Makkonen, K., Pietikäinen, J., Mattila, P., Penttinen, S. & Esala, M. (toim.). Maaperän vuorovaikutukset. III Maaperätieteiden päivien laajennetut abstraktit. Pro Terra 22: 31-32. ISBN 952-10-2275-2 [pdf]
Pennanen, T., Korkama, T. & Heiskanen, J. 2002. Ectomycorrhizal fungi of Norway spruce seedlings after planting to mounded clear-cut forest. Julkaisussa: Pietola, L. & Esala, M. (toim.). Maa, josta elämme. II. Maaperätieteiden päivät, Helsinki 19.-20.11.2002. Laajennetut abstraktit. Pro Terra 15: 42-43. [pdf]
Fritze, H., Pennanen, T., Haimi, J., Siira-Pietikäinen, A. & Vanhala, P. 2000. Effects of heavy metals on soil microflora. In: Mälkönen, E. (ed.). Forest condition in a changing environment - the Finnish case. Forestry Sciences, Vol. 65. Kluwer Academic Publishers. p. 260-265.
Pennanen, T., Vanhala, P., Kiikkilä, O. & Fritze, H. 2000. Effects of acidic deposition on forest soil microbiology. In: Mälkönen, E. (ed.). Forest condition in a changing environment - the Finnish case. Forestry Sciences, Vol. 65. Kluwer Academic Publishers. p. 200-202.
Fritze, H., Pennanen, T., Haimi, J., Siira-Pietikäinen, A. & Vanhala, P. 1998. Raskasmetallien vaikutukset metsämaan hajottajaeliöstöön. Julkaisussa: Mälkönen, E. (toim.). Ympäristömuutos ja metsien kunto. Metsien terveydentilan tutkimusohjelman loppuraportti. Metsäntutkimuslaitoksen tiedonantoja - The Finnish Forest Research Institute, Research Papers 691: 189-192.
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