Theresa Dutschei

ORCID: 0000-0003-3053-9536
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Research Areas
  • Microbial Community Ecology and Physiology
  • Enzyme Production and Characterization
  • Genomics and Phylogenetic Studies
  • Biofuel production and bioconversion
  • Protist diversity and phylogeny
  • Algal biology and biofuel production
  • Inorganic and Organometallic Chemistry
  • Chemistry and Chemical Engineering
  • Bacteriophages and microbial interactions
  • Microbial Metabolic Engineering and Bioproduction
  • Microbial Metabolites in Food Biotechnology
  • Vibrio bacteria research studies
  • Seaweed-derived Bioactive Compounds
  • Amino Acid Enzymes and Metabolism
  • Polyamine Metabolism and Applications
  • Studies on Chitinases and Chitosanases

Universität Greifswald
2021-2024

Universitätsmedizin Greifswald
2023

Abstract Phytoplankton blooms provoke bacterioplankton blooms, from which bacterial biomass (necromass) is released via increased zooplankton grazing and viral lysis. While consumption of algal during well-studied, little known about the concurrent recycling these substantial amounts necromass. We demonstrate that biomass, such as alpha-glucan storage polysaccharides, generated organic matter, reused thus itself a major carbon source in vitro diatom-dominated bloom. highlight conserved...

10.1038/s41467-024-48301-5 article EN cc-by Nature Communications 2024-05-14

Marine Bacteroidetes that degrade polysaccharides contribute to carbon cycling in the ocean. Organic matter, including glycans from terrestrial plants, might enter oceans through rivers. Whether marine bacteria structurally related diverse sources plants and algae was previously unknown. We show bacterium Flavimarina sp. Hel_I_48 encodes two polysaccharide utilization loci (PULs) which xylans algae. Biochemical experiments revealed activity specificity of encoded xylanases associated enzymes...

10.1111/1462-2920.16390 article EN cc-by-nc-nd Environmental Microbiology 2023-04-30

ADVERTISEMENT RETURN TO ISSUEPREVGreen Chemistry High...Green HighlightsNEXTGreen Articles of Interest to the Pharmaceutical IndustryMelissa A. AshleyMelissa AshleyGenentech Inc., 1 DNA Way, South San Francisco, California 94080, United StatesMore by Melissa Ashley, Miles H. AuklandMiles AuklandChemical Development, Technology & Operations, AstraZeneca, Macclesfield SK10 2NA, U.K.More Aukland, Marian C. Bryan*Marian BryanJanssen R&D, 1400 McKean Road, Spring House, Pennsylvania 19002,...

10.1021/acs.oprd.3c00517 article EN Organic Process Research & Development 2024-02-22

Marine algae catalyze half of all global photosynthetic production carbohydrates. Owing to their fast growth rates, Ulva spp. rapidly produce substantial amounts carbohydrate-rich biomass and represent an emerging renewable energy carbon resource. Their major cell wall polysaccharide is the anionic carbohydrate ulvan. Here, we describe a new enzymatic degradation pathway marine bacterium Formosa agariphila for ulvan oligosaccharides involving unsaturated uronic acid at nonreducing end linked...

10.1016/j.jbc.2021.101210 article EN cc-by Journal of Biological Chemistry 2021-09-20

Abstract Phytoplankton blooms initiate bacterioplankton blooms, from which bacterial biomass is released via grazing zooplankton and viral lysis. Bacterial consumption of algal during well studied, but little known about the simultaneous reuse necromass. Alpha- beta-glucans are abundant dissolved organic macromolecules blooms. We demonstrate laminarin-fueled alpha-glucan synthesis in marine Bacteroidota strains, as these alpha-glucans major carbon source vitro a diatom-dominated bloom....

10.21203/rs.3.rs-3205445/v1 preprint EN cc-by Research Square (Research Square) 2023-08-14

Marine algae are responsible for half of the global primary production, converting carbon dioxide into organic compounds like carbohydrates. Particularly in eutrophic waters, they can grow massive algal blooms. This polysaccharide rich biomass represents a cheap and abundant renewable source. In nature, diverse group polysaccharides is decomposed by highly specialized microbial catabolic systems. We elucidated complete degradation pathway green algae-specific ulvan previous studies using...

10.1186/s12934-022-01931-0 article EN cc-by Microbial Cell Factories 2022-10-10

Abstract Formaldehyde is a toxic metabolite that formed in large quantities during bacterial utilization of the methoxy sugar 6‐ O ‐methyl‐ d ‐galactose, an abundant monosaccharide red algal polysaccharide porphyran. Marine bacteria capable metabolizing porphyran must therefore possess suitable detoxification systems for formaldehyde. We demonstrate here formaldehyde marine Flavobacterium Zobellia galactanivorans proceeds via ribulose monophosphate pathway. Simultaneously, we show genes...

10.1002/cbic.202200269 article EN ChemBioChem 2022-05-13

Marine algae produce complex polysaccharides, which can be degraded by marine heterotrophic bacteria utilizing carbohydrate-active enzymes. The red algal polysaccharide porphyran contains the methoxy sugar 6-O-methyl-D-galactose (G6Me). In degradation of porphyran, oxidative demethylation this monosaccharide towards D-galactose and formaldehyde occurs, is catalyzed a cytochrome P450 monooxygenase its redox partners. direct proximity to genes encoding for key enzymes demethylation,...

10.1007/s00253-023-12447-x article EN cc-by Applied Microbiology and Biotechnology 2023-03-07
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