D
Daan R. Speth
Researcher at Radboud University Nijmegen
Publications - 44
Citations - 4166
Daan R. Speth is an academic researcher from Radboud University Nijmegen. The author has contributed to research in topics: Anammox & Metagenomics. The author has an hindex of 22, co-authored 35 publications receiving 3134 citations. Previous affiliations of Daan R. Speth include California Institute of Technology & Massachusetts Institute of Technology.
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Journal ArticleDOI
Complete nitrification by a single microorganism
Maartje A. H. J. van Kessel,Daan R. Speth,Mads Albertsen,Per Halkjær Nielsen,Huub J. M. Op den Camp,Boran Kartal,Boran Kartal,Mike S. M. Jetten,Mike S. M. Jetten,Sebastian Lücker +9 more
TL;DR: The enrichment and initial characterization of two Nitrospira species that encode all the enzymes necessary for ammonia oxidation via nitrite to nitrate in their genomes, and indeed completely oxidize ammonium to nitrates to conserve energy are reported.
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A highly abundant bacteriophage discovered in the unknown sequences of human faecal metagenomes
Bas E. Dutilh,Noriko A. Cassman,Katelyn McNair,Savannah E. Sanchez,Genivaldo G. Z. Silva,Lance Boling,Jeremy J. Barr,Daan R. Speth,Victor Seguritan,Ramy K. Aziz,Ramy K. Aziz,Ben Felts,Elizabeth A. Dinsdale,John L. Mokili,Robert Edwards +14 more
TL;DR: The discovery of a previously unidentified bacteriophage present in the majority of published human faecal metagenomes, which is referred to as crAssphage and predicted to have a Bacteroides host for this phage, consistent with Bactseroides-related protein homologues and a unique carbohydrate-binding domain encoded in the phage genome.
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Archaea catalyze iron-dependent anaerobic oxidation of methane
TL;DR: This study identifies archaea of the order Methanosarcinales, related to “Candidatus Methanoperedens nitroreducens,” which couple the reduction of environmentally relevant particulate forms of iron and manganese to methane oxidation, filling one of the remaining lacunas in anaerobic methane oxidation.
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Genome-based microbial ecology of anammox granules in a full-scale wastewater treatment system
Daan R. Speth,Michiel H. in 't Zandt,Simon Guerrero-Cruz,Bas E. Dutilh,Bas E. Dutilh,Bas E. Dutilh,Mike S. M. Jetten,Mike S. M. Jetten +7 more
TL;DR: This work uses genome-resolved metagenomics to build a genome-based ecological model of the microbial community in a full-scale PNA reactor and yields 23 near-complete draft genomes, including the most complete Omnitrophica genome to date.
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The metagenome of the marine anammox bacterium 'Candidatus Scalindua profunda' illustrates the versatility of this globally important nitrogen cycle bacterium
Jack van de Vossenberg,Dagmar Woebken,Wouter J. Maalcke,Hans J. C. T. Wessels,Bas E. Dutilh,Boran Kartal,Eva M. Janssen-Megens,Guus Roeselers,Jia Yan,Daan R. Speth,Jolein Gloerich,Wim Geerts,Erwin van der Biezen,Wendy Pluk,Kees-Jan Francoijs,Lina Russ,Phyllis Lam,Stefanie A Malfatti,Susannah G. Tringe,Suzanne C. M. Haaijer,Huub J. M. Op den Camp,Henk Stunnenberg,Rudolf Amann,Marcel M. M. Kuypers,Mike S. M. Jetten,Mike S. M. Jetten +25 more
TL;DR: Adaptations of Scalindua to the substrate limitation of the ocean may include highly expressed ammonium, nitrite and oligopeptide transport systems and pathways for the transport, oxidation, and assimilation of small organic compounds that may allow a more versatile lifestyle contributing to the competitive fitness of ScalIndua in the marine realm.