Sirvi Autor "Tedersoo, Leho" järgi

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Ectomycorrhizal fungi: diversity and community srtucture in Estonia, Seychelles and Australia
(2007-05-30T06:02:05Z) Tedersoo, Leho
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Fine scale distribution of ectomycorrhizal fungi and roots across substrate layers including coarse woody debris in a mixed forest
(Tartu Ülikool, 2003) Tedersoo, Leho; Kõljalg, Urmas, juhendaja; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Botaanika osakond
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Soil moisture and microbiome explain greenhouse gas exchange in global peatlands
(Scientific Reports, 2025) Pärn, Jaan; Thayamkottu, Sandeep; Öpik, Maarja; Bahram, Mohammad; Tedersoo, Leho; Espenberg, Mikk; Davison, John Alexander; Kasak, Kuno; Maddison, Martin; Niinemets, Ülo; Ostonen, Ivika; Soosaar, Kaido; Sohar, Kristina; Zobel, Martin; Mander, Ülo
Earth's climate is tightly connected to carbon and nitrogen exchange between the atmosphere and ecosystems. Wet peatland ecosystems take up carbon dioxide in plants and accumulate organic carbon in soil but release methane. Man-made drainage releases carbon dioxide and nitrous oxide from peat soils. Carbon and nitrous gas exchange and their relationships with environmental conditions are poorly understood. Here, we show that open peatlands in both their wet and dry extremes are greenhouse gas sinks while peat carbon/nitrogen ratios are high and prokaryotic (bacterial and archaeal) abundances are low. Conversely, peatlands with moderate soil moisture levels emit carbon dioxide and nitrous oxide, while prokaryotic abundances are high. The results challenge the current assumption of a uniform effect of drainage on greenhouse gas emissions and show that the peat microbiome of greenhouse-gas sources differs fundamentally from sinks.
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Soil moisture and microbiome explain greenhouse gas exchange in global peatlands
(2025) Pärn, Jaan; Espenberg, Mikk; Kasak, Kuno; Mander, Ülo; Thayamkottu, Sandeep; Öpik, Maarja; Bahram, Mohammad; Tedersoo, Leho; Davison, John Alexander; Maddison, Martin; Niinemets, Ülo; Ostonen, Ivika; Soosaar, Kaido; Sohar, Kristina; Zobel, Martin
Earth’s climate is tightly connected to carbon and nitrogen exchange between the atmosphere and ecosystems. Wet peatland ecosystems take up carbon dioxide in plants and accumulate organic carbon in soil but release methane. Man-made drainage releases carbon dioxide and nitrous oxide from peat soils. Carbon and nitrous gas exchange and their relationships with environmental conditions are poorly understood. Here, we show that open peatlands in both their wet and dry extremes are greenhouse gas sinks while peat carbon/nitrogen ratios are high and prokaryotic (bacterial and archaeal) abundances are low. Conversely, peatlands with moderate soil moisture levels emit carbon dioxide and nitrous oxide, while prokaryotic abundances are high. The results challenge the current assumption of a uniform effect of drainage on greenhouse gas emissions and show that the peat microbiome of greenhouse-gas sources differs fundamentally from sinks.
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Varakult lahknenud seenerühma Basal clone group 2 visualiseerimine CARD-FISH metoodikaga
(Tartu Ülikool, 2021) Suija, Mihkel; Tedersoo, Leho; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Botaanika osakond
Bakalaureusetöö teoreetilise osa eesmärk oli anda ülevaade varakult lahknenud seente taksonitest, nende ökoloogilisest rollist ja nende uurimiseks kasutatavatest meetoditest. Töö eksperimentaalse osa eesmärk oli välja töötada varasemate uurimistööde alusel CARD-FISH protokoll, mis võimaldaks edaspidiselt uurida mikroskoopilisi seeni. Töö uurimisobjektiks oli ainult keskkonnast pärit geenijärjestuste põhjal teadaolev rühm laborinimega Basal clone group 2 (BCG2).