2020
DOI: 10.1186/s13568-020-00994-9
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Microbial nitrogen fixation and methane oxidation are strongly enhanced by light in Sphagnum mosses

Abstract: Peatlands have acted as C-sinks for millennia, storing large amounts of carbon, of which a significant amount is yearly released as methane (CH 4). Sphagnum mosses are a key genus in many peat ecosystems and these mosses live in close association with methane-oxidizing and nitrogen-fixing microorganisms. To disentangle mechanisms which may control Sphagnum-associated methane-oxidation and nitrogen-fixation, we applied four treatments to Sphagnum mosses from a pristine peatland in Finland: nitrogen fertilizatio… Show more

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Cited by 17 publications
(10 citation statements)
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“…Instead, they interact with the surrounding wetland through an array of dead hyaline cells, constituting up to 90% of the plant's volume ( 25 ). Hyaline cells serve as water reservoirs and hubs for rhizosphere-like plant-microbe interactions ( 18 , 26 28 ), which are essential for plant productivity and ecosystem nutrient cycles ( 14 , 18 , 28 37 ). Therefore, changes in Sphagnum -associated microbial communities, which occupy the hyaline cells and leaf surfaces, may constitute early indicators of ecosystem disturbance ( 14 , 38 ).…”
Section: Introductionmentioning
confidence: 99%
“…Instead, they interact with the surrounding wetland through an array of dead hyaline cells, constituting up to 90% of the plant's volume ( 25 ). Hyaline cells serve as water reservoirs and hubs for rhizosphere-like plant-microbe interactions ( 18 , 26 28 ), which are essential for plant productivity and ecosystem nutrient cycles ( 14 , 18 , 28 37 ). Therefore, changes in Sphagnum -associated microbial communities, which occupy the hyaline cells and leaf surfaces, may constitute early indicators of ecosystem disturbance ( 14 , 38 ).…”
Section: Introductionmentioning
confidence: 99%
“…However, compared with previous long-term experimental results, some differences in this study were not significant. Therefore, extending the fertilization period and intensifying fertilization may produce significant fertilization effects ( Kox et al, 2020 ).…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, higher soil CH 4 fluxes were found in SLL where there was higher soil NH 4 + − N content. Further, it is worth noting that Sphagnum is a key species associated with methane oxidation (Kox et al, 2020). Thus, the Sphagnum in the SLL may lead to higher CH 4 oxidation.…”
Section: Effect Of Understory Species On Soil Ch 4 Fluxesmentioning
confidence: 99%