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Peter H. Janssen

Peter H. Janssen

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Biology and Biochemistry
New Zealand
2026

D-Index & Metrics

Biology and Biochemistry

D-Index
79
Citations
26726
World Ranking
4251
National Ranking
9

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in New Zealand Leader Award
  • 2023 - Research.com Biology and Biochemistry in New Zealand Leader Award
  • 2022 - Research.com Biology and Biochemistry in New Zealand Leader Award

Overview

Peter H. Janssen is affiliated with AgResearch in New Zealand and specializes in research spanning Agricultural and Biological Sciences as well as Biochemistry, Genetics and Molecular Biology. Their work frequently addresses topics related to ruminant nutrition, digestive physiology, and genetic traits in livestock.

Their research covers the following main topics:

  • Ruminant Nutrition and Digestive Physiology
  • Genetic and phenotypic traits in livestock
  • Anaerobic Digestion and Biogas Production
  • Gut microbiota and health
  • Plant and fungal interactions
  • Genomics and Phylogenetic Studies
  • Bioenergy crop production and management

Janssen's publications have appeared frequently in several scientific venues, including:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Scientific Reports
  • Research Square (Research Square)
  • Animal Microbiome
  • Nature Communications

Recent papers authored or co-authored by Janssen include:

  • "Hydrogen and formate production and utilisation in the rumen and the human colon," 2022, Animal Microbiome
  • "A restriction enzyme reduced representation sequencing approach for low-cost, high-throughput metagenome profiling," 2020, PLoS ONE
  • "Electron flow: key to mitigating ruminant methanogenesis," 2022, Trends in Microbiology
  • "Patterns and determinants of the global herbivorous mycobiome," 2023, Nature Communications
  • "Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep," 2022, Frontiers in Genetics

Janssen collaborates frequently with a group of researchers who appear recurrently as co-authors. These include:

  • Arjan Jonker
  • Suzanne J. Rowe
  • Graeme T. Attwood
  • John C. McEwan
  • Christina D. Moon

The scientist's subfields of study reflect a diverse engagement with topics in the life sciences, including:

  • Agronomy and Crop Science
  • Molecular Biology
  • Genetics
  • Building and Construction
  • Ecology, Evolution, Behavior and Systematics

Best Publications

  • Identifying the Dominant Soil Bacterial Taxa in Libraries of 16S rRNA and 16S rRNA Genes

    Peter H. Janssen

  • Rumen microbial community composition varies with diet and host, but a core microbiome is found across a wide geographical range

    Gemma Henderson;Faith Cox;Siva Ganesh;Arjan Jonker

  • Three Genomes from the Phylum Acidobacteria Provide Insight into the Lifestyles of These Microorganisms in Soils

    Naomi L. Ward;Jean F. Challacombe;Jean F. Challacombe;Peter H. Janssen;Peter H. Janssen;Bernard Henrissat

  • Improved culturability of soil bacteria and isolation in pure culture of novel members of the divisions Acidobacteria, Actinobacteria, Proteobacteria, and Verrucomicrobia

    Peter H. Janssen;Penelope S. Yates;Bronwyn E. Grinton;Paul M. Taylor

  • Diversity and structure of the methanogenic community in anoxic rice paddy soil microcosms as examined by cultivation and direct 16S rRNA gene sequence retrieval.

    Regine Großkopf;Peter H. Janssen;Werner Liesack

  • Influence of hydrogen on rumen methane formation and fermentation balances through microbial growth kinetics and fermentation thermodynamics

    Peter H. Janssen

  • Long-term dynamic modeling of global population and built-up area in a spatially explicit way: HYDE 3.1

    Kees Klein Goldewijk;Arthur Beusen;Peter Janssen

  • Structure of the archaeal community of the rumen.

    Peter H. Janssen;Marek Kirs

  • Laboratory Cultivation of Widespread and Previously Uncultured Soil Bacteria

    Shayne J. Joseph;Philip Hugenholtz;Parveen Sangwan;Catherine A. Osborne

  • Effects of Growth Medium, Inoculum Size, and Incubation Time on Culturability and Isolation of Soil Bacteria

    Kathryn E. R. Davis;Shayne J. Joseph;Peter H. Janssen

  • Cultivation of globally distributed soil bacteria from phylogenetic lineages previously only detected in cultivation-independent surveys

    Michelle Sait;Philip Hugenholtz;Peter H. Janssen

  • Methane yield phenotypes linked to differential gene expression in the sheep rumen microbiome

    Weibing Shi;Christina D. Moon;Sinead C. Leahy;Dongwan Kang;Dongwan Kang

  • Simultaneous amplicon sequencing to explore co-occurrence patterns of bacterial, archaeal and eukaryotic microorganisms in rumen microbial communities.

    Sandra Kittelmann;Sandra Kittelmann;Henning Seedorf;William A. Walters;Jose C. Clemente

  • The genome sequence of the rumen methanogen Methanobrevibacter ruminantium reveals new possibilities for controlling ruminant methane emissions.

    Sinead C. Leahy;William J. Kelly;Eric Altermann;Ron S. Ronimus

  • Effect of DNA Extraction Methods and Sampling Techniques on the Apparent Structure of Cow and Sheep Rumen Microbial Communities

    Gemma Henderson;Faith Cox;Sandra Kittelmann;Vahideh Heidarian Miri

  • Two different bacterial community types are linked with the low-methane emission trait in sheep.

    Sandra Kittelmann;Cesar S. Pinares-Patiño;Henning Seedorf;Michelle R. Kirk

  • Strategies to reduce methane emissions from farmed ruminants grazing on pasture.

    Bryce M. Buddle;Michel Denis;Graeme T. Attwood;Eric Altermann

  • Rumen metagenome and metatranscriptome analyses of low methane yield sheep reveals a Sharpea-enriched microbiome characterised by lactic acid formation and utilisation

    Janine Kamke;Sandra Kittelmann;Priya Soni;Yang Li

  • Rumen microbial (meta)genomics and its application to ruminant production

    D. P. Morgavi;W. J. Kelly;P. H. Janssen;G. T. Attwood

  • Effect of pH on Isolation and Distribution of Members of Subdivision 1 of the Phylum Acidobacteria Occurring in Soil

    Michelle Sait;Kathryn E. R. Davis;Peter H. Janssen

Frequent Co-Authors

Arthur C. Petersen
Arthur C. Petersen University College London
Hugh W. Morgan
Hugh W. Morgan University of Waikato
Bernhard Schink
Bernhard Schink University of Konstanz
John C. McEwan
John C. McEwan AgResearch
Werner Liesack
Werner Liesack Max Planck Society
Michael L. Dyall-Smith
Michael L. Dyall-Smith University of Melbourne
David Pacheco
David Pacheco New Zealand Agricultural Greenhouse Gas Research Centre (NZAGRC)
James S. Risbey
James S. Risbey Illinois Tool Works (United States)
Jeroen P. van der Sluijs
Jeroen P. van der Sluijs University of Bergen

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