Gerd Gleixner
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View article: Functional Group Distribution Shapes Chemical Properties of Degraded Terrestrial and Marine Dissolved Organic Matter
Functional Group Distribution Shapes Chemical Properties of Degraded Terrestrial and Marine Dissolved Organic Matter Open
Dissolved organic matter (DOM) plays a crucial role in global carbon cycling, yet its molecular complexity and the factors governing its turnover and degradation in different ecosystems are poorly understood. Here, we provide an experiment…
View article: Enhancing Chimeric Fragmentation Spectra Deconvolution Using Direct Infusion–Tandem Mass Spectrometry Across High‐Resolution Mass Spectrometric Platforms
Enhancing Chimeric Fragmentation Spectra Deconvolution Using Direct Infusion–Tandem Mass Spectrometry Across High‐Resolution Mass Spectrometric Platforms Open
Rationale Direct infusion mass spectrometry (DI‐MS) is a rapid analytical technique widely used in omics research and other fields. However, the complexity of DI‐MS spectra frequently leads to co‐fragmentation of analytes with similar m/z …
View article: Plant diversity induces shifts from microbial generalists to specialist by enhancing niche differentiation, microbiome connectivity, and network stability in a temperate grassland
Plant diversity induces shifts from microbial generalists to specialist by enhancing niche differentiation, microbiome connectivity, and network stability in a temperate grassland Open
Background Soil microbiota are key players of terrestrial ecosystem functioning, including decomposition, soil organic matter formation, and nutrient cycling, and interact strongly with plants in the rhizosphere. While several studies have…
View article: Microbial and organic matter composition jointly drive phosphorus cycling genes and phosphorus availability in Amazonian soils
Microbial and organic matter composition jointly drive phosphorus cycling genes and phosphorus availability in Amazonian soils Open
Soil phosphorus (P) is a limiting factor for vegetation growth in the Amazon rainforest, where plants depend on microorganisms for organic matter cycling and nutrient uptake. However, forest-to-agriculture conversion changes plant-microbe-…
View article: PREPRINT "Comparability of Liquid Chromatography Tandem Mass Spectrometry Analysis of Dissolved Organic Matter Across Laboratories"
PREPRINT "Comparability of Liquid Chromatography Tandem Mass Spectrometry Analysis of Dissolved Organic Matter Across Laboratories" Open
Non-targeted liquid-chromatography tandem high-resolution mass-spectrometry (LC-MS/MS) is increasingly applied for the structure-resolved chemical analysis of dissolved organic matter (DOM). With new developments in mass spectrometry instr…
View article: Groundwater microbiomes balance resilience and vulnerability to hydroclimatic extremes
Groundwater microbiomes balance resilience and vulnerability to hydroclimatic extremes Open
Groundwater health is increasingly threatened by climate change, which alters precipitation patterns, leading to groundwater recharge shifts. These shifts impact subsurface microbial communities, crucial for maintaining ecosystem functions…
View article: Resource inequality limits transfer of nutrients from soils to plants in experimental grassland
Resource inequality limits transfer of nutrients from soils to plants in experimental grassland Open
A system's functioning is influenced not only by resource availability but also, likely, by resource inequality. In ecological systems most experimental manipulations of resource availability typically focused on homogeneous resource addit…
View article: JenaTron - An Experimental Approach to Study the Effects of Plant History and Soil History on Grassland Ecosystem Functioning
JenaTron - An Experimental Approach to Study the Effects of Plant History and Soil History on Grassland Ecosystem Functioning Open
The global loss of biodiversity has motivated many studies that experimentally vary plant species richness and examine the consequences for ecosystem functioning. Such experiments generally show a positive relationship between above- and b…
View article: Mid- to Late-Holocene branched GDGT-based air temperatures from a crater lake in Cameroon (Central Africa)
Mid- to Late-Holocene branched GDGT-based air temperatures from a crater lake in Cameroon (Central Africa) Open
View article: Bioavailable carbon additions to soil promote free-living nitrogen fixation and microbial biomass growth with N-free lipids
Bioavailable carbon additions to soil promote free-living nitrogen fixation and microbial biomass growth with N-free lipids Open
View article: Shared community history strengthens plant diversity effects on below‐ground multitrophic functioning
Shared community history strengthens plant diversity effects on below‐ground multitrophic functioning Open
The relationship of plant diversity and several ecosystem functions strengthens over time. This suggests that the restructuring of biotic interactions in the process of a community's assembly and the associated changes in function differ b…
View article: Hydroclimatic extremes threaten groundwater quality and stability
Hydroclimatic extremes threaten groundwater quality and stability Open
Heavy precipitation, drought, and other hydroclimatic extremes occur more frequently than in the past climate reference period (1961–1990). Given their strong effect on groundwater recharge dynamics, these phenomena increase the vulnerabil…
View article: Cycling of dissolved organic nutrients and indications for nutrient limitations in contrasting Amazon rainforest ecosystems
Cycling of dissolved organic nutrients and indications for nutrient limitations in contrasting Amazon rainforest ecosystems Open
View article: Snowmelt seepage fluxes of dissolved organic matter in forest and grassland – a molecular-level case study from the Hainich Critical Zone Exploratory, Germany
Snowmelt seepage fluxes of dissolved organic matter in forest and grassland – a molecular-level case study from the Hainich Critical Zone Exploratory, Germany Open
Snowfall/cover and snowmelt are essential determinants of winter soil processes/events that may force the biogeochemical dynamics of soils in temperate regions. Increasing variability of the European hydroclimate is expected to lead to mor…
View article: Nitrogen nutrition effects on δ<sup>13</sup>C of plant respired CO<sub>2</sub> are mostly caused by concurrent changes in organic acid utilisation and remobilisation
Nitrogen nutrition effects on δ<sup>13</sup>C of plant respired CO<sub>2</sub> are mostly caused by concurrent changes in organic acid utilisation and remobilisation Open
Nitrogen (N) nutrition impacts on primary carbon metabolism and can lead to changes in δ 13 C of respired CO 2 . However, uncertainty remains as to whether (1) the effect of N nutrition is observed in all species, (2) N source also impacts…
View article: Plant diversity enhances ecosystem multifunctionality via multitrophic diversity
Plant diversity enhances ecosystem multifunctionality via multitrophic diversity Open
Ecosystem functioning depends on biodiversity at multiple trophic levels, yet relationships between multitrophic diversity and ecosystem multifunctionality have been poorly explored, with studies often focusing on individual trophic levels…
View article: The multiple-mechanisms hypothesis of biodiversity–stability relationships
The multiple-mechanisms hypothesis of biodiversity–stability relationships Open
Long-term research in grassland biodiversity experiments has provided empirical evidence that ecological and evolutionary processes are intertwined in determining both biodiversity–ecosystem functioning (BEF) and biodiversity–stability rel…
View article: Shared community history strengthens plant diversity effects on belowground multitrophic functioning
Shared community history strengthens plant diversity effects on belowground multitrophic functioning Open
The relationship of plant diversity and several ecosystem functions strengthens over time. This suggests that the restructuring of biotic interactions in the process of a community’s assembly and the associated changes in function differ b…
View article: Land use effects on soil microbiome composition and traits with consequences for its ecosystem carbon use efficiency
Land use effects on soil microbiome composition and traits with consequences for its ecosystem carbon use efficiency Open
The soil microbiome determines the fate of belowground inputs of plant fixed carbon. The shifts in soil properties caused by changes in land use leads to modifications in microbiome structure and function, resulting in either loss or gain …
View article: Plant-wax biomarkers and their isotopes reveal complex relationships between climate, vegetation and fire during collapse of Indus Valley Civilization
Plant-wax biomarkers and their isotopes reveal complex relationships between climate, vegetation and fire during collapse of Indus Valley Civilization Open
Climate variability, especially monsoonal rainfall, has significantly shaped habitable areas for human populations in South Asia in the past just as it does today. Instances of climate-driven social disruptions and population movements are…
View article: Seasonal drought reduces microbial diversity and functional richness in the Amazon
Seasonal drought reduces microbial diversity and functional richness in the Amazon Open
Tropical rainforests such as the Amazon are of high importance as a global carbon sink. Due to its well-known nutrient limitation, the Amazon rainforest relies heavily on rapid microbial decomposition of biomass to release freshly availabl…
View article: Seasonal variation of water isotopes in different forest ecosystems in the Central Amazon&#160;
Seasonal variation of water isotopes in different forest ecosystems in the Central Amazon  Open
The Central Amazon comprises mosaics of forest ecosystems with different water dynamics and soil characteristics. The water dynamics from each ecosystem affect the evaporation signal seasonally expressed in the water isotopes (δ18O an…
View article: Plant diversity and community age stabilize ecosystem multifunctionality
Plant diversity and community age stabilize ecosystem multifunctionality Open
It is well known that biodiversity positively affects ecosystem functioning, leading to enhanced ecosystem stability. However, this knowledge is mainly based on analyses using single ecosystem functions, while studies focusing on the stabi…
View article: Bioavailable Carbon Additions to Soil Promote Free-Living Nitrogen Fixation and Formation of Microbial Storage Lipids
Bioavailable Carbon Additions to Soil Promote Free-Living Nitrogen Fixation and Formation of Microbial Storage Lipids Open
View article: Land use effects on soil microbiome composition and traits with consequences for soil carbon cycling
Land use effects on soil microbiome composition and traits with consequences for soil carbon cycling Open
The soil microbiome determines the fate of plant-fixed carbon. The shifts in soil properties caused by land use change leads to modifications in microbiome function, resulting in either loss or gain of soil organic carbon (SOC). Soil pH is…
View article: Stability and carbon uptake of the soil microbial community is determined by differences between rhizosphere and bulk soil
Stability and carbon uptake of the soil microbial community is determined by differences between rhizosphere and bulk soil Open
The interactions between plants and soil microorganisms are fundamental for ecosystem functioning. However, it remains unclear if seasonality of plant growth impacts plant-microbial interactions, such as by inducing shifts in the microbial…
View article: Tree mycorrhizal type regulates leaf and needle microbial communities, affects microbial assembly and co-occurrence network patterns, and influences litter decomposition rates in temperate forest
Tree mycorrhizal type regulates leaf and needle microbial communities, affects microbial assembly and co-occurrence network patterns, and influences litter decomposition rates in temperate forest Open
Background Tree mycorrhizal types (arbuscular mycorrhizal fungi and ectomycorrhizal fungi) alter nutrient use traits and leaf physicochemical properties and, thus, affect leaf litter decomposition. However, little is known about how differ…
View article: Shared community history strengthens plant diversity effects on belowground multitrophic functioning
Shared community history strengthens plant diversity effects on belowground multitrophic functioning Open
The relationship of plant diversity and several ecosystem functions strengthens over time. This suggests that the restructuring of biotic interactions in the process of a community’s assembly and the associated changes in function differ b…
View article: Drought intensity alters productivity, carbon allocation and plant nitrogen uptake in fast versus slow grassland communities
Drought intensity alters productivity, carbon allocation and plant nitrogen uptake in fast versus slow grassland communities Open
Grasslands face more frequent and extreme droughts; yet, their responses to increasing drought intensity are poorly understood. Increasing drought intensity likely triggers abrupt shifts (thresholds) in grassland ecosystem functioning whic…
View article: Ecological stability of Late Pleistocene-to-Holocene Lesotho, southern Africa, facilitated human upland habitation
Ecological stability of Late Pleistocene-to-Holocene Lesotho, southern Africa, facilitated human upland habitation Open