A5024272602- Mycorrhizal Fungi and Plant Interactions
- Forest Ecology and Biodiversity Studies
- Soil Carbon and Nitrogen Dynamics
- Plant Pathogens and Fungal Diseases
- Microbial Community Ecology and Physiology
- Ecology and Vegetation Dynamics Studies
- Lichen and fungal ecology
- Fungal Biology and Applications
- Peatlands and Wetlands Ecology
- Agriculture, Plant Science, Crop Management
- Plant nutrient uptake and metabolism
- Gut microbiota and health
- Environmental DNA in Biodiversity Studies
- Mycotoxins in Agriculture and Food
- Seedling growth and survival studies
- Horticultural and Viticultural Research
- Plant-Microbe Interactions and Immunity
- Polar Research and Ecology
- Wastewater Treatment and Nitrogen Removal
- Botany and Plant Ecology Studies
- Nematode management and characterization studies
- Study of Mite Species
- Bryophyte Studies and Records
- Mollusks and Parasites Studies
- Plant and Fungal Species Descriptions
Freie Universität Berlin
2015-2025
Berlin Brandenburg Institute of Advanced Biodiversity Research
2014-2024
John Wiley & Sons (United States)
2018
Ecological Society of America
2018
Abstract Soil fungi and bacteria are the key players in transformation processing of carbon nutrients terrestrial ecosystems, yet controls on their abundance activity not well understood. Based stoichiometric principles, soil microbial processes expected to be limited by mineral nutrients, which particularly scarce often highly weathered tropical forest soils. Such limitation is directly relevant for fate global element cycles, but its extent nature have never been assessed systematically...
Abstract Increased nitrogen (N) depositions expected in the future endanger diversity and stability of ecosystems primarily limited by N, but also often co‐limited other nutrients like phosphorus (P). In this context a nutrient manipulation experiment (NUMEX) was set up tropical montane rainforest southern Ecuador, an area identified as biodiversity hotspot. We examined impacts elevated N P availability on arbuscular mycorrhizal fungi (AMF), group obligate biotrophic plant symbionts with...
Tropical regions are facing increasing atmospheric inputs of nutrients, which will have unknown consequences for the structure and functioning these systems. Here, we show that Neotropical montane rainforests respond rapidly to moderate additions N (50 kg ha−1 yr−1) P (10 yr−1). Monitoring nutrient fluxes demonstrated majority added nutrients remained in system, either soil or vegetation. led not only an increase foliar concentrations, but also altered microbial biomass, standing fine root...
Summary Community analyses of arbuscular mycorrhizal fungi ( AMF ) using ribosomal small subunit SSU or internal transcribed spacer ITS DNA sequences often suffer from low resolution coverage. We developed a novel sequencing based approach for highly resolving and specific profiling communities. took advantage previously established ‐specific PCR primers that amplify c . 1.5‐kb long fragment covering parts , the large LSU ), we sequenced resulting amplicons with single molecule real‐time...
Abstract Trait-based frameworks are promising tools to understand the functional consequences of community shifts in response environmental change. The applicability these soil microbes is limited by a lack trait data and focus on categorical traits. To address this gap for an important group microorganisms, we identify trade-offs underlying fungal economics spectrum based large collection 28 saprobic isolates, derived from common grassland grown culture plates. In dataset, ecologically...
Litter decomposition is a key ecosystem process, relevant for the release and storage of nutrients carbon in soil. Soil fungi are one dominant drivers organic matter decomposition, but fungal taxa differ substantially their functional ability to decompose plant litter. Knowledge mostly based on observational data subsequent molecular analyses vitro studies have been limited forest ecosystems. In order better understand traits saprotrophic soil grassland ecosystems, we isolated 31 from...
Summary Anthropogenic atmospheric deposition can increase nutrient supply in the most remote ecosystems, potentially affecting soil biodiversity. Arbuscular mycorrhizal fungal (AMF) communities rapidly respond to simulated eutrophication tropical forests. Yet limited spatio‐temporal extent of such manipulations, together with often unrealistically high fertilization rates employed, impedes generalization responses. We sequenced mixed root AMF within a seven year‐long fully factorial nitrogen...
Movement of organisms plays a crucial role in microbial ecology, yet little is known about how, when and at what speeds soil microorganisms move. Literature offers conflicting lines evidence, even regarding whether single-celled can move all under typical conditions. We review the literature on movement context physicochemical complexity, to establish its likelihood prerequisite Our focus spatial temporal scales relevant for microbiota (µm cm, seconds days), with particular...
The nitrogen (N) and phosphorus (P) limitations in soil microorganisms have profound implications for key functions such as organic matter decomposition carbon (C) sequestration. However, the extent magnitude of microbial N P limitation soils worldwide remain largely unknown compared to plants. Moreover, spatial variability may lead disproportionate responses microbially driven processes global change factors along environmental gradients. Thus, better understanding patterns drivers is...
Microbial activity drives soil carbon mineralization, while microbial necromass along with other residues contributes to the stable organic pool. Still, precise quantification and characterization of remains methodologically challenging in complex systems, requiring controlled experiments. We have recently presented conceptual framework death pathways soil, where we hypothesized that different agents would lead varying chemical properties necromass, consequences for fate soil.In studies...
Abstract Global changes in nutrient deposition rates are likely to have profound effects on plant communities, particularly the nutrient‐limited systems of tropics. We studied increased availability seedlings six tree species montane forests southern Ecuador situ . After five years continued N, P, or N+P addition, naturally grown each two most common at elevation (1000, 2000, and 3000 m asl) were harvested for analyses leaf morphology, content, herbivory, tissue biomass allocation. Most...
Summary The dependency of microbial activity on nutrient availability in soil is only partly understood, but highly relevant for cycling dynamics. In order to achieve more insight adaptations limiting conditions, precise physiological knowledge needed. Therefore, we developed an experimental system assessing traits 16 saprobic fungal isolates nitrogen (N) limited conditions. We tested the hypotheses that (1) are negatively affected by N deficiency a similar extent and (2) respond...
Abstract Refined conversion factors for soil fungal biomarkers are proposed. High interspecific variability is present in all biomarkers. A modeling approach supports the validity of biomarker estimates diverse soils. ITS1 copies vary strongly, but fungal-specific with least phylogenetic bias. combination will reveal physiology and activity. The abundances fungi bacteria used as simple predictors carbon dynamics, represent widely available microbial traits. Soil serve quantitative these...
Abstract The abundances of fungi and bacteria in soil are used as simple predictors for carbon dynamics, represent widely available microbial traits. Soil biomarkers serve quantitative estimates these groups, though not quantifying biomass per se. accurate conversion to pools, an understanding its comparability among soils is therefore needed. We refined factors classical fungal biomarkers, evaluated the application PCR (qPCR, rDNA copies) a biomarker fungi. Based on contents pure cultures...
Abstract Extracellular polymeric substances (EPS) are produced by microorganisms and interact to form a complex matrix called biofilm. In soils, EPS important contributors the microbial necromass and, thus, soil organic carbon (SOC). Amino sugars (AS) used as indicators for in soil, although origin of galactosamine mannosamine is largely unknown. However, indications exist that they part EPS. this study, two bacteria fungi were grown starch medium either with or without quartz induce...
During the last few decades, a plethora of sequencing studies provided insight into fungal community composition under various environmental conditions. Still, mechanisms species assembly and spread in soil remain largely unknown. While mycelial growth patterns are studied extensively, abundant formation asexual spores is often overlooked, though representing substantial part life cycle relevant for survival dispersal. Here, we explore sporulation (spore abundance, size shape) 32...