N. E. Welker

2.6k total citations
45 papers, 2.0k citations indexed

About

N. E. Welker is a scholar working on Molecular Biology, Genetics and Ecology. According to data from OpenAlex, N. E. Welker has authored 45 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Molecular Biology, 20 papers in Genetics and 19 papers in Ecology. Recurrent topics in N. E. Welker's work include Bacteriophages and microbial interactions (19 papers), Bacterial Genetics and Biotechnology (18 papers) and Microbial Metabolic Engineering and Bioproduction (9 papers). N. E. Welker is often cited by papers focused on Bacteriophages and microbial interactions (19 papers), Bacterial Genetics and Biotechnology (18 papers) and Microbial Metabolic Engineering and Bioproduction (9 papers). N. E. Welker collaborates with scholars based in United States and Italy. N. E. Welker's co-authors include Eleftherios T. Papoutsakis, L. Leon Campbell, Christopher Tomas, Seshu B. Tummala, Ruchir P. Desai, George N. Bennett, Lee D. Mermelstein, Lijun Wu, Remi E. Amelunxen and James F. Catterall and has published in prestigious journals such as Nature Biotechnology, Applied and Environmental Microbiology and Biochemistry.

In The Last Decade

N. E. Welker

44 papers receiving 1.9k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
N. E. Welker United States 22 1.6k 814 497 399 283 45 2.0k
Glenn H. Chambliss United States 24 1.2k 0.8× 248 0.3× 979 2.0× 370 0.9× 502 1.8× 55 2.0k
Walter L. Staudenbauer Germany 32 1.8k 1.1× 1.1k 1.3× 694 1.4× 1.0k 2.6× 148 0.5× 87 2.9k
Wilfrid J. Mitchell United Kingdom 24 956 0.6× 534 0.7× 231 0.5× 218 0.5× 203 0.7× 58 1.5k
Christian Croux France 24 1.3k 0.8× 733 0.9× 212 0.4× 194 0.5× 161 0.6× 33 1.9k
Sylvie Chauvaux France 17 651 0.4× 325 0.4× 414 0.8× 347 0.9× 184 0.7× 19 1.2k
Laurence Girbal France 27 1.6k 1.0× 786 1.0× 352 0.7× 98 0.2× 194 0.7× 52 2.3k
Corinne A. Michels United States 30 2.0k 1.2× 676 0.8× 333 0.7× 155 0.4× 337 1.2× 60 2.3k
R. Longin France 12 736 0.5× 278 0.3× 280 0.6× 141 0.4× 128 0.5× 17 1.1k
Alain A. Vertès Japan 25 2.0k 1.2× 1.0k 1.2× 494 1.0× 99 0.2× 272 1.0× 53 2.3k
Janet Westpheling United States 35 2.4k 1.5× 1.4k 1.8× 563 1.1× 927 2.3× 183 0.6× 72 3.3k

Countries citing papers authored by N. E. Welker

Since Specialization
Citations

This map shows the geographic impact of N. E. Welker'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 N. E. Welker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites N. E. Welker more than expected).

Fields of papers citing papers by N. E. Welker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by N. E. Welker. 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 N. E. Welker. The network helps show where N. E. Welker may publish in the future.

Co-authorship network of co-authors of N. E. Welker

This figure shows the co-authorship network connecting the top 25 collaborators of N. E. Welker. A scholar is included among the top collaborators of N. E. Welker based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with N. E. Welker. N. E. Welker is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Tummala, Seshu B., N. E. Welker, & Eleftherios T. Papoutsakis. (2003). Design of Antisense RNA Constructs for Downregulation of the Acetone Formation Pathway of Clostridium acetobutylicum. Journal of Bacteriology. 185(6). 1923–1934. 128 indexed citations
2.
Bayles, Kenneth W., N. E. Welker, Malcolm E. Winkler, & Uldis N. Streips. (2002). Wind River Conference on Prokaryotic Biology—2002. Journal of Bacteriology. 185(1). 7–12. 3 indexed citations
3.
Desai, Ruchir P., et al.. (1999). Metabolic Flux Analysis Elucidates the Importance of the Acid-Formation Pathways in Regulating Solvent Production by Clostridium acetobutylicum. Metabolic Engineering. 1(3). 206–213. 82 indexed citations
4.
Tummala, Seshu B., N. E. Welker, & Eleftherios T. Papoutsakis. (1999). Development and Characterization of a Gene Expression Reporter System for Clostridium acetobutylicum ATCC 824. Applied and Environmental Microbiology. 65(9). 3793–3799. 100 indexed citations
5.
Rossi, Edda De, Patrizia Brigidi, N. E. Welker, Giovanna Riccardi, & D. Matteuzzi. (1994). New shuttle vector for cloning in Bacillus stearothermophilus. Research in Microbiology. 145(8). 579–583. 21 indexed citations
6.
Mermelstein, Lee D., N. E. Welker, Daniel J. Petersen, George N. Bennett, & Eleftherios T. Papoutsakis. (1994). Genetic and Metabolic Engineering of Clostridium acetobutylicum ATCC 824a. Annals of the New York Academy of Sciences. 721(1). 54–68. 16 indexed citations
7.
Mermelstein, Lee D., N. E. Welker, George N. Bennett, & Eleftherios T. Papoutsakis. (1992). Expression of Cloned Homologous Fermentative Genes in Clostridium Acetobutylicum ATCC 824. Nature Biotechnology. 10(2). 190–195. 203 indexed citations
8.
Wu, Lijun & N. E. Welker. (1991). Temperature-induced protein synthesis in Bacillus stearothermophilus NUB36. Journal of Bacteriology. 173(15). 4889–4892. 17 indexed citations
9.
Wu, Lijun & N. E. Welker. (1989). Protoplast Transformation of Bacillus stearothermophilus NUB36 by Plasmid DNA. Microbiology. 135(5). 1315–1324. 37 indexed citations
10.
Chen, Zhimin, et al.. (1986). Genetic analysis of Bacillus stearothermophilus by protoplast fusion. Journal of Bacteriology. 165(3). 994–1001. 32 indexed citations
11.
Welker, N. E., et al.. (1985). Isolation of a Bacillus stearothermophilus mutant exhibiting increased thermostability in its restriction endonuclease. Journal of Bacteriology. 162(2). 682–692. 13 indexed citations
12.
Catterall, James F. & N. E. Welker. (1977). Isolation and properties of a thermostable restriction endonuclease (ENDO R-Bst1503). Journal of Bacteriology. 129(2). 1110–1120. 36 indexed citations
13.
Streips, Uldis N. & N. E. Welker. (1971). Competence-Inducing Factor of Bacillus stearothermophilus. Journal of Bacteriology. 106(3). 955–959. 7 indexed citations
14.
Streips, Uldis N. & N. E. Welker. (1969). Infection of Bacillus stearothermophilus with Bacteriophage Deoxyribonucleic Acid. Journal of Bacteriology. 99(1). 344–346. 12 indexed citations
15.
Welker, N. E. & L. Leon Campbell. (1967). Crystallization and Properties of α-Amylase from Five Strains of Bacillus amyloliquefaciens*. Biochemistry. 6(12). 3681–3689. 21 indexed citations
16.
Welker, N. E. & L. Leon Campbell. (1967). Unrelatedness of Bacillus amyloliquefaciens and Bacillus subtilis. Journal of Bacteriology. 94(4). 1124–1130. 127 indexed citations
17.
Welker, N. E.. (1967). Purification and Properties of a Thermophilic Bacteriophage Lytic Enzyme. Journal of Virology. 1(3). 617–625. 13 indexed citations
18.
Welker, N. E. & L. Leon Campbell. (1964). PREFERENTIAL SYNTHESIS OF α-AMYLASE BY BACILLUS STEAROTHERMOPHILUS IN THE PRESENCE OF 5-METHYL-TRYPTOPHAN. Journal of Bacteriology. 87(4). 828–831. 5 indexed citations
19.
Welker, N. E. & L. Leon Campbell. (1963). EFFECT OF CARBON SOURCES ON FORMATION OF α-AMYLASE BY BACILLUS STEAROTHERMOPHILUS. Journal of Bacteriology. 86(4). 681–686. 88 indexed citations
20.
Welker, N. E. & L. Leon Campbell. (1963). INDUCTION OF α-AMYLASE OF BACILLUS STEAROTHERMOPHILUS BY MALTODEXTRINS. Journal of Bacteriology. 86(4). 687–691. 40 indexed citations

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Glenn H. Chambliss Breakdown of academic impact, for papers by Walter L. Staudenbauer Breakdown of academic impact, for papers by Wilfrid J. Mitchell Breakdown of academic impact, for papers by Christian Croux Breakdown of academic impact, for papers by Sylvie Chauvaux Breakdown of academic impact, for papers by Laurence Girbal Breakdown of academic impact, for papers by Corinne A. Michels Breakdown of academic impact, for papers by R. Longin Breakdown of academic impact, for papers by Alain A. Vertès Breakdown of academic impact, for papers by Janet Westpheling
Rankless by CCL
2026