Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1128/mSystems.01078-20
Lizenz creative commons licence
Titel (primär) Complementary roles of wood-inhabiting fungi and bacteria facilitate deadwood decomposition
Autor Tláskal, V.; Brabcová, V.; Větrovský, T.; Jomura, M.; López-Mondéjar, R.; Oliveira Monteiro, L.M.; Saraiva, J.P.; Human, Z.R.; Cajthaml, T.; Nunes da Rocha, U.; Baldrian, P.
Quelle mSystems
Erscheinungsjahr 2021
Department UMB
Band/Volume 6
Heft 1
Seite von e01078-20
Sprache englisch
Topic T7 Bioeconomy
Keywords bacteria deadwood decomposition forest ecosystems fungi metatranscriptomics microbiome nitrogen fixation nutrient cycling
Abstract Forests accumulate and store large amounts of carbon (C), and a substantial fraction of this stock is contained in deadwood. This transient pool is subject to decomposition by deadwood-associated organisms, and in this process it contributes to CO2 emissions. Although fungi and bacteria are known to colonize deadwood, little is known about the microbial processes that mediate carbon and nitrogen (N) cycling in deadwood. In this study, using a combination of metagenomics, metatranscriptomics, and nutrient flux measurements, we demonstrate that the decomposition of deadwood reflects the complementary roles played by fungi and bacteria. Fungi were found to dominate the decomposition of deadwood and particularly its recalcitrant fractions, while several bacterial taxa participate in N accumulation in deadwood through N fixation, being dependent on fungal activity with respect to deadwood colonization and C supply. Conversely, bacterial N fixation helps to decrease the constraints of deadwood decomposition for fungi. Both the CO2 efflux and N accumulation that are a result of a joint action of deadwood bacteria and fungi may be significant for nutrient cycling at ecosystem levels. Especially in boreal forests with low N stocks, deadwood retention may help to improve the nutritional status and fertility of soils.
dauerhafte UFZ-Verlinkung
Tláskal, V., Brabcová, V., Větrovský, T., Jomura, M., López-Mondéjar, R., Oliveira Monteiro, L.M., Saraiva, J.P., Human, Z.R., Cajthaml, T., Nunes da Rocha, U., Baldrian, P. (2021):
Complementary roles of wood-inhabiting fungi and bacteria facilitate deadwood decomposition
mSystems 6 (1), e01078-20 10.1128/mSystems.01078-20