Raymond Portalier

2.6k total citations
64 papers, 2.2k citations indexed

About

Raymond Portalier is a scholar working on Molecular Biology, Genetics and Ecology. According to data from OpenAlex, Raymond Portalier has authored 64 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Molecular Biology, 30 papers in Genetics and 14 papers in Ecology. Recurrent topics in Raymond Portalier's work include Bacterial Genetics and Biotechnology (29 papers), RNA and protein synthesis mechanisms (16 papers) and Bacteriophages and microbial interactions (14 papers). Raymond Portalier is often cited by papers focused on Bacterial Genetics and Biotechnology (29 papers), RNA and protein synthesis mechanisms (16 papers) and Bacteriophages and microbial interactions (14 papers). Raymond Portalier collaborates with scholars based in France and United States. Raymond Portalier's co-authors include Jean Claude Lazzaroni, Martine Heyde, Anne Vianney, Jean‐Claude Lazzaroni, Janine Robert‐Baudouy, Patrick Laloi, Thierry Clavel, Danièle Atlan, Pierre Germon and Christophe Gilbert and has published in prestigious journals such as Cell, Journal of Molecular Biology and Applied and Environmental Microbiology.

In The Last Decade

Raymond Portalier

62 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Raymond Portalier France 29 1.5k 1.1k 423 380 350 64 2.2k
Russell Maurer United States 23 2.3k 1.5× 1.5k 1.4× 363 0.9× 755 2.0× 427 1.2× 32 3.2k
L. S. Baron United States 30 1.1k 0.7× 873 0.8× 709 1.7× 761 2.0× 602 1.7× 84 2.3k
Toshio Fukasawa Japan 27 1.6k 1.1× 495 0.5× 157 0.4× 361 0.9× 174 0.5× 63 2.2k
Evelyne Krin France 25 1.4k 0.9× 1.2k 1.1× 624 1.5× 455 1.2× 174 0.5× 45 2.2k
G. O. Humphreys United Kingdom 20 1.2k 0.8× 761 0.7× 211 0.5× 447 1.2× 158 0.5× 26 1.9k
Agnès Ullmann France 27 2.8k 1.9× 1.7k 1.6× 569 1.3× 527 1.4× 95 0.3× 72 4.0k
Akiko Higa United States 7 2.0k 1.4× 1.1k 1.0× 123 0.3× 618 1.6× 119 0.3× 17 2.8k
Alain J. Cozzone France 32 1.9k 1.2× 980 0.9× 222 0.5× 536 1.4× 102 0.3× 62 2.6k
Jacqueline Plumbridge France 37 2.9k 1.9× 2.0k 1.9× 360 0.9× 598 1.6× 166 0.5× 89 3.6k
Maxime Schwartz France 24 1.8k 1.2× 1.5k 1.4× 160 0.4× 672 1.8× 104 0.3× 40 2.5k

Countries citing papers authored by Raymond Portalier

Since Specialization
Citations

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

Fields of papers citing papers by Raymond Portalier

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Raymond Portalier. 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 Raymond Portalier. The network helps show where Raymond Portalier may publish in the future.

Co-authorship network of co-authors of Raymond Portalier

This figure shows the co-authorship network connecting the top 25 collaborators of Raymond Portalier. A scholar is included among the top collaborators of Raymond Portalier 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 Raymond Portalier. Raymond Portalier 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.
Heyde, Martine, et al.. (2003). Involvement of phospholipids in resistance and adaptation ofEscherichia colito acid conditions and to long-term survival. FEMS Microbiology Letters. 225(2). 207–211. 10 indexed citations
2.
Heyde, Martine, et al.. (2001). External-pH-Dependent Expression of the Maltose Regulon and ompF Gene in Escherichia coli Is Affected by the Level of Glycerol Kinase, Encoded by glpK. Journal of Bacteriology. 183(19). 5675–5683. 18 indexed citations
3.
Frot‐Coutaz, Jacques, et al.. (1999). Characterization of a prolidase from Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397 with an unusual regulation of biosynthesis. Microbiology. 145(2). 437–446. 46 indexed citations
4.
Germon, Pierre, Thierry Clavel, Anne Vianney, Raymond Portalier, & Jean Claude Lazzaroni. (1998). Mutational Analysis of theEscherichia coliK-12 TolA N-Terminal Region and Characterization of Its TolQ-Interacting Domain by Genetic Suppression. Journal of Bacteriology. 180(24). 6433–6439. 69 indexed citations
5.
Clavel, Thierry, Pierre Germon, Anne Vianney, Raymond Portalier, & Jean Claude Lazzaroni. (1998). TolB protein ofEscherichia coliK‐12 interacts with the outer membrane peptidoglycan‐associated proteins Pal, Lpp and OmpA. Molecular Microbiology. 29(1). 359–367. 124 indexed citations
6.
Coll, Jean‐Luc, Martine Heyde, & Raymond Portalier. (1994). Expression of the nmpC gene of Escherichia coli K‐12 is modulated by external pH. Identification of cis‐acting regulatory sequences involved in this regulation. Molecular Microbiology. 12(1). 83–93. 12 indexed citations
7.
Atlan, D., Christophe Gilbert, Baptiste Blanc, & Raymond Portalier. (1994). Cloning, sequencing and characterization of the pepIP gene encoding a proline iminopeptidase from Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397. Microbiology. 140(3). 527–535. 67 indexed citations
8.
Vianney, Anne, Tal M. Lewin, Wayne F. Beyer, et al.. (1994). Membrane topology and mutational analysis of the TolQ protein of Escherichia coli required for the uptake of macromolecules and cell envelope integrity. Journal of Bacteriology. 176(3). 822–829. 66 indexed citations
9.
Heyde, Martine, Jean‐Luc Coll, & Raymond Portalier. (1991). Identification of Escherichia coli genes whose expression increases as a function of external pH. Molecular and General Genetics MGG. 229(2). 197–205. 26 indexed citations
10.
Laloi, Patrick, et al.. (1991). Cell-wall-associated proteinase of Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397: differential extraction, purification and properties of the enzyme. Applied Microbiology and Biotechnology. 36(2). 196–204. 51 indexed citations
11.
Heyde, Martine, et al.. (1988). Regulation of porin gene expression over a wide range of extracellular pH inEscherichia coliK-12: Influence of atolAmutation. FEMS Microbiology Letters. 52(1-2). 59–65. 11 indexed citations
12.
Portalier, Raymond, et al.. (1988). Overproduction and excretion ofβ-lactamase and alkaline phosphatase byEscherichia coli olp mutants. Applied Microbiology and Biotechnology. 29(2-3). 258–263. 4 indexed citations
13.
Portalier, Raymond, et al.. (1987). Purification of extracellular alkaline phosphatase released by Escherichia coli excretory mutants. Applied Microbiology and Biotechnology. 26(4). 13 indexed citations
14.
Heyde, Martine & Raymond Portalier. (1987). Regulation of major outer membrane porin proteins of Escherichia coli K 12 by pH. Molecular and General Genetics MGG. 208(3). 511–517. 93 indexed citations
15.
Lazzaroni, Jean Claude, et al.. (1987). tolA, tolB and excC, three cistrons involved in the control of pleiotropic release of periplasmic proteins by Escherichia coli K12. Molecular and General Genetics MGG. 209(2). 391–395. 63 indexed citations
16.
Portalier, Raymond, et al.. (1984). Isolation and preliminary characterization of β-lactamase excretory mutants ofEscherichia coliK-12. FEMS Microbiology Letters. 21(3). 323–328. 16 indexed citations
17.
Lazzaroni, Jean Claude & Raymond Portalier. (1981). A new convenient method for the isolation of alkaline phosphatase-leaky mutants of Escherichia coli K-12. Periplasmic-leaky mutants of E. coli. FEMS Microbiology Letters. 10(1). 29–32. 1 indexed citations
18.
Lazzaroni, Jean Claude, Raymond Portalier, & D. Atlan. (1979). Isolation and preliminary characterization of periplasmic-leaky mutants of Escherichia coli K-12. FEMS Microbiology Letters. 5(6). 411–416. 38 indexed citations
19.
Portalier, Raymond, et al.. (1972). Dosages colorimétriques des oxydoréductase aldoniques d'Escherichia coli K 12 : Applications. Biochimica et Biophysica Acta (BBA) - Enzymology. 289(1). 19–27. 15 indexed citations
20.
Robert‐Baudouy, Janine, et al.. (1972). Localisation génétique et caractérisation biochimique de mutations affectant le gène de structure de l'hydrolyase mannonique chez Escherichia coli K 12. Molecular and General Genetics MGG. 118(4). 351–362. 26 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.

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