M. Friedrich

Publications171
h-index47
Citations7,759
Highly Influential Citations511
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Enhanced sensitivity of DNA- and rRNA-based stable isotope probing by fractionation and quantitative analysis of isopycnic centrifugation gradients.
Stable isotope probing (SIP) of nucleic acids allows the detection and identification of active members of natural microbial populations that are involved in the assimilation of an isotopically… Expand
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A FRET-based calcium biosensor with fast signal kinetics and high fluorescence change.
Genetically encoded calcium biosensors have become valuable tools in cell biology and neuroscience, but some aspects such as signal strength and response kinetics still need improvement. Here we… Expand
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DNA stable-isotope probing
Stable-isotope probing is a method used in microbial ecology that provides a means by which specific functional groups of organisms that incorporate particular substrates are identified without the… Expand
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Phylogenetic analysis reveals multiple lateral transfers of adenosine-5'-phosphosulfate reductase genes among sulfate-reducing microorganisms.
Lateral gene transfer affects the evolutionary path of key genes involved in ancient metabolic traits, such as sulfate respiration, even more than previously expected. In this study, the phylogeny of… Expand
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Lateral gene transfer of dissimilatory (bi)sulfite reductase revisited.
In contrast to previous findings, we demonstrate that the dissimilatory (bi)sulfite reductase genes (dsrAB) of Desulfobacula toluolica were vertically inherited. Furthermore, Desulfobacterium anilini… Expand
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Stable isotope probing of rRNA and DNA reveals a dynamic methylotroph community and trophic interactions with fungi and protozoa in oxic rice field soil.
Stable isotope probing (SIP) is a novel technique to characterize structure and in situ function of active microbial populations, which is based on the incorporation of 13C-labelled substrates into… Expand
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Microbial Community Structure in Midgut and Hindgut of the Humus-Feeding Larva of Pachnoda ephippiata (Coleoptera: Scarabaeidae)
ABSTRACT The guts of soil-feeding macroinvertebrates contain a complex microbial community that is involved in the transformation of ingested soil organic matter. In a companion paper (T. Lemke, U.… Expand
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A balance of KIF1A‐like kinesin and dynein organizes early endosomes in the fungus Ustilago maydis
In Ustilago maydis, bidirectional transport of early endosomes is microtubule dependent and supports growth and cell separation. During early budding, endosomes accumulate at putative microtubule… Expand
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Effects of Amendment with Ferrihydrite and Gypsum on the Structure and Activity of Methanogenic Populations in Rice Field Soil
ABSTRACT Methane emission from paddy fields may be reduced by the addition of electron acceptors to stimulate microbial populations competitive to methanogens. We have studied the effects of… Expand
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Physicochemical Conditions and Microbial Activities in the Highly Alkaline Gut of the Humus-Feeding Larva of Pachnoda ephippiata (Coleoptera: Scarabaeidae)
ABSTRACT The soil macrofauna plays an important role in the carbon and nitrogen cycle of terrestrial ecosystems. In order to gain more insight into the role of the intestinal microbiota in… Expand
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