J. Stephen

9.8k citations

124 papers · 7.1k indexed · 2 hit papers · h-index 41

Impact in

Pollution top 0.1%
- Wastewater Treatment and Nitrogen Removal
- Microbial bioremediation and biosurfactants
Ecology top 0.5%
- Microbial Community Ecology and Physiology

Papers in ⓘ

Endocrinology 11
Infectious Diseases 38
- Viral gastroenteritis research and epidemiology 20
- Clostridium difficile and Clostridium perfringens research 17

Co-authors: George A. Kowalchuk (17 shared papers)James I. Prosser (7 shared papers)T. Martin Embley (5 shared papers)Yun‐Juan Chang (16 shared papers)Sarah J. Macnaughton (15 shared papers)J. W. Woldendorp (3 shared papers)David C. White (11 shared papers)Allison E. McCaig (4 shared papers)
Journals: Journal of Medical Microbiology (21 papers)Applied and Environmental Microbiology (10 papers)Infection and Immunity (5 papers)Journal of General Virology (5 papers)Journal of Pediatric Gastroenterology and Nutrition (4 papers)
Partner nations: United Kingdom United States Netherlands

In The Last Decade

J. Stephen

122 papers receiving 6.7k citations

Hit Papers

align trajectories log scale

Ammonia-Oxidizing Bacteria: A Model for Molecular Microbial Ecology 2001 · 1.1k citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2001 Annual Review of Microbiology
1997 Applied and Environmental Microbiology

Peers

Countries citing papers authored by J. Stephen

Since Specialization

Citations

This map shows the geographic impact of J. Stephen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Stephen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Stephen more than expected).

Fields of papers citing papers by J. Stephen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. Stephen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Stephen. The network helps show where J. Stephen may publish in the future.

Co-authors

The 25 scholars most cited alongside J. Stephen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. Stephen Line = papers co-authored together J. Stephen links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 124 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Ammonia-Oxidizing Bacteria: A Model for Molecular Microbial Ecology Annual Review of Microbiology ·George A. Kowalchuk, J. Stephen Hit paper breakdown →	2001	1068
2	Analysis of ammonia-oxidizing bacteria of the beta subdivision of the class Proteobacteria in coastal sand dunes by denaturing gradient gel electrophoresis and sequencing of PCR-amplified 16S ribosomal DNA fragments Applied and Environmental Microbiology ·George A. Kowalchuk, J. Stephen, Wietse de Boer, James I. Prosser, T. Martin Embley, J. W. Woldendorp Hit paper breakdown →	1997	666
3	Microbial Population Changes during Bioremediation of an Experimental Oil Spill Applied and Environmental Microbiology ·Sarah J. Macnaughton, J. Stephen, Albert D. Venosa, G. A. Davis, Yun‐Juan Chang, David C. White	1999	474
4	Molecular diversity of soil and marine 16S rRNA gene sequences related to beta-subgroup ammonia-oxidizing bacteria Applied and Environmental Microbiology ·J. Stephen, Allison E. McCaig, Zena Smith, James I. Prosser, T. Martin Embley	1996	328
5	Effect of Toxic Metals on Indigenous Soil β-Subgroup Proteobacterium Ammonia Oxidizer Community Structure and Protection against Toxicity by Inoculated Metal-Resistant Bacteria Applied and Environmental Microbiology ·J. Stephen, Yun‐Juan Chang, Sarah J. Macnaughton, George A. Kowalchuk, Kam Tin Leung, Cissy A. Flemming, David White	1999	234
6	Analysis of β-Subgroup Proteobacterial Ammonia Oxidizer Populations in Soil by Denaturing Gradient Gel Electrophoresis Analysis and Hierarchical Phylogenetic Probing Applied and Environmental Microbiology ·J. Stephen, George A. Kowalchuk, Mary-Ann V. Bruns, Allison E. McCaig, Carol J. Phillips, T. Martin Embley, James I. Prosser	1998	216
7	Comparative Diversity of Ammonia Oxidizer 16S rRNA Gene Sequences in Native, Tilled, and Successional Soils Applied and Environmental Microbiology ·Mary Ann Bruns, J. Stephen, George A. Kowalchuk, James I. Prosser, Eldor A. Paul	1999	198
8	Molecular Analysis of Ammonia-Oxidizing Bacteria of the β Subdivision of the Class Proteobacteria in Compost and Composted Materials Applied and Environmental Microbiology ·George A. Kowalchuk, Z. S. Naoumenko, P.J.L. Derikx, Andreas Felske, J. Stephen, И.А. Архипченко	1999	192
9	Microvariation Artifacts Introduced by PCR and Cloning of Closely Related 16S rRNA Gene Sequences Applied and Environmental Microbiology ·Arjen Speksnijder, George A. Kowalchuk, Sander de Jong, Elizabeth Kline, J. Stephen, Hendrikus J. Laanbroek	2001	185
10	Diversity and Characterization of Sulfate-Reducing Bacteria in Groundwater at a Uranium Mill Tailings Site Applied and Environmental Microbiology ·Yun‐Juan Chang, Aaron D. Peacock, Philip E. Long, J. Stephen, James P. McKinley, Sarah J. Macnaughton, Ansar Hussain, Arnold M. Saxton, David C. White	2001	171
11	Community analysis of ammonia-oxidising bacteria, in relation to oxygen availability in soils and root-oxygenated sediments, using PCR, DGGE and oligonucleotide probe hybridisation FEMS Microbiology Ecology ·George A. Kowalchuk, Paul L. E. Bodelier, G.H.J. Heilig, J. Stephen, Hendrikus J. Laanbroek	1998	157
12	Changes in the community structure of ammonia‐oxidizing bacteria during secondary succession of calcareous grasslands Environmental Microbiology ·George A. Kowalchuk, A. W. Stienstra, Heilig, J. Stephen, J. W. Woldendorp	2000	148
13	Nitrogen Cycling and Community Structure of Proteobacterial β-Subgroup Ammonia-Oxidizing Bacteria within Polluted Marine Fish Farm Sediments Applied and Environmental Microbiology ·Allison E. McCaig, Carol J. Phillips, J. Stephen, George A. Kowalchuk, S. M. Harvey, R. A. Herbert, T. Martin Embley, James I. Prosser	1999	141
14	Characterisation of bacterial communities associated with toxic and non-toxic dinoflagellates: Alexandrium spp. and Scrippsiella trochoidea FEMS Microbiology Ecology ·Georgina L. Hold, Elizabeth A. Smith, Michael S. RappÃ©, Elizabeth W. Maas, Edward R. B. Moore, Carsten Stroempl, J. Stephen, James I. Prosser, T. Harry Birkbeck, Susan Gallacher	2001	133
15	Molecular analysis of ammonia-oxidising bacteria in soil of successional grasslands of the Drentsche A (The Netherlands) FEMS Microbiology Ecology ·George A. Kowalchuk, A. W. Stienstra, G.H.J. Heilig, J. Stephen, J. W. Woldendorp	2000	131
16	Effect of toxin A and B of Clostridium difficile on rabbit ileum and colon. Gut ·Timothy J. Mitchell, Julian M. Ketley, S. C. Haslam, J. Stephen, D. W. Burdon, D. C. A. Candy, R Daniel	1986	128
17	Developments in terrestrial bacterial remediation of metals Current Opinion in Biotechnology ·J. Stephen, Sarah J Macnaughtont	1999	97
18	Shifts in the dominant populations of ammonia-oxidizing b-subclass Proteobacteria along the eutrophic Schelde estuary Aquatic Microbial Ecology ·M.J.M. de Bie, AGCL Speksnijder, George A. Kowalchuk, T. Schuurman, Gabriël Zwart, J. Stephen, Onno E. Diekmann, Hendrikus J. Laanbroek	2001	94
19	Microbial Incorporation of ¹³C-Labeled Acetate at the Field Scale: Detection of Microbes Responsible for Reduction of U(VI) Environmental Science & Technology ·Yun‐Juan Chang, Philip E. Long, Roland Geyer, Aaron D. Peacock, Charles T. Resch, Kerry L. Sublette, Susan M. Pfiffner, Amanda Smithgall, Robert Anderson, Helen A. Vrionis, J. Stephen, Richard D. Dayvault, Irene Ortiz-Bernad, Derek R. Lovley, David C. White	2005	90
20	Growth of Clostridium difficile and production of toxins A and B in complex and defined media Journal of Medical Microbiology ·S. C. Haslam, Julian M. Ketley, Timothy J. Mitchell, J. Stephen, D. W. Burdon, D. C. A. Candy	1986	73

About J. Stephen

J. Stephen is a scholar working on Endocrinology, Infectious Diseases, Pollution, Ecology and Food Science, having authored 124 papers that have together received 7.1k indexed citations. Recurring topics across this work include Microbial Community Ecology and Physiology (24 papers), Salmonella and Campylobacter epidemiology (21 papers), Viral gastroenteritis research and epidemiology (20 papers), Clostridium difficile and Clostridium perfringens research (17 papers), Wastewater Treatment and Nitrogen Removal (17 papers), Genomics and Phylogenetic Studies (14 papers), Bacteriophages and microbial interactions (13 papers) and Virus-based gene therapy research (8 papers). The work is most often cited by research in Pollution (3.1k citations), Ecology (3.4k citations), Soil Science (781 citations), Endocrinology (359 citations) and Environmental Chemistry (682 citations). J. Stephen has collaborated with scholars based in United Kingdom, United States and Netherlands. Frequent co-authors include George A. Kowalchuk, James I. Prosser, T. Martin Embley, Yun‐Juan Chang, Sarah J. Macnaughton, J. W. Woldendorp, David C. White, Allison E. McCaig, Wietse de Boer and D. C. A. Candy. Their work appears in journals such as Journal of Medical Microbiology, Applied and Environmental Microbiology, Infection and Immunity, Journal of General Virology and Journal of Pediatric Gastroenterology and Nutrition.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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