2026 Marcelo E. Tolmasky: Biology and Biochemistry Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Biology and Biochemistry	50	17609	16169	7224	6453	181	9341

Overview

Marcelo E. Tolmasky is affiliated with California State University, Fullerton in the United States. Their research spans several fields within biochemistry, genetics, molecular biology, and medicine, with a distinguished focus on molecular medicine, molecular biology, endocrinology, pharmacology, and epidemiology.

The scientist's main research topics include:

Antibiotic Resistance in Bacteria
Antibiotics Pharmacokinetics and Efficacy
Bacterial biofilms and quorum sensing
Vibrio bacteria research studies
Escherichia coli research studies
Bacterial Genetics and Biotechnology
Carbohydrate Chemistry and Synthesis

Frequent co-authors collaborating with Marcelo E. Tolmasky are:

María Soledad Ramírez
Robert A. Bonomo
Marisel R. Tuttobene
Fernando Pasterán
Tomás Subils

The scientist has published extensively in several venues, including:

Preprints.org
bioRxiv (Cold Spring Harbor Laboratory)
Antibiotics
Scientific Reports
Biomedicines

Selected recent papers by Marcelo E. Tolmasky include:

"Carbapenemases: Transforming Acinetobacter baumannii into a Yet More Dangerous Menace," 2020, Biomolecules
"Zinc: Multidimensional Effects on Living Organisms," 2021, Biomedicines
"Cerebrospinal fluid (CSF) augments metabolism and virulence expression factors in Acinetobacter baumannii," 2021, Scientific Reports
"Human Pleural Fluid and Human Serum Albumin Modulate the Behavior of a Hypervirulent and Multidrug-Resistant (MDR) Acinetobacter baumannii Representative Strain," 2021, Pathogens
"Functional Analysis of the Acinetobacter baumannii XerC and XerD Site-Specific Recombinases: Potential Role in Dissemination of Resistance Genes," 2020, Antibiotics

Best Publications

Aminoglycoside Modifying Enzymes

Maria Soledad Ramirez;Marcelo E. Tolmasky

1484
Citations
Mechanisms of antibiotic resistance

Jun Lin;Kunihiko Nishino;Marilyn C. Roberts;Marcelo Tolmasky

366
Citations
Whole-Genome Analyses of Speciation Events in Pathogenic Brucellae

Patrick S. G. Chain;Diego J. Comerci;Marcelo E. Tolmasky;Frank W. Larimer

278
Citations
Multiple intensive care unit outbreak of Acinetobacter calcoaceticus subspecies anitratus respiratory infection and colonization associated with contaminated, reusable ventilator circuits and resuscitation bags.

Alan I. Hartstein;Abdel L. Rashad;Janice M. Liebler;Luis A. Actis

247
Citations
Amikacin: Uses, Resistance, and Prospects for Inhibition

Maria S. Ramirez;Marcelo E. Tolmasky

210
Citations
Carbapenemases: Transforming Acinetobacter baumannii into a Yet More Dangerous Menace.

Maria Soledad Ramirez;Robert A. Bonomo;Marcelo E. Tolmasky

190
Citations
Plasmid-Mediated Antibiotic Resistance and Virulence in Gram-Negatives: the Klebsiella pneumoniae Paradigm

Maria S. Ramirez;German M. Traglia;David L. Lin;Tung Tran

184
Citations
The siderophore-mediated iron acquisition systems of Acinetobacter baumannii ATCC 19606 and Vibrio anguillarum 775 are structurally and functionally related.

Caleb W. Dorsey;Andrew P. Tomaras;Pamela L. Connerly;Marcelo E. Tolmasky

175
Citations
Rise and dissemination of aminoglycoside resistance: the aac(6′)-Ib paradigm

María Soledad Ramirez;Nikolas Nikolaidis;Marcelo Tolmasky

163
Citations
Complex Class 1 Integrons with Diverse Variable Regions, Including aac(6′)-Ib-cr, and a Novel Allele, qnrB10, Associated with ISCR1 in Clinical Enterobacterial Isolates from Argentina

María Paula Quiroga;Patricia Andres;Alejandro Petroni;Alfonso J. C. Soler Bistué

138
Citations
Complete sequence of virulence plasmid pJM1 from the marine fish pathogen Vibrio anguillarum strain 775.

Manuela Di Lorenzo;Michiel Stork;Marcelo E. Tolmasky;Luis A. Actis

130
Citations
Molecular Cloning and Characterization of cgs, the Brucella abortus Cyclic β(1-2) Glucan Synthetase Gene: Genetic Complementation of Rhizobium meliloti ndvB and Agrobacterium tumefaciens chvB Mutants

Nora Iñón de Iannino;Gabriel Briones;Marcelo Tolmasky;Rodolfo A. Ugalde

124
Citations
Naturally Competent Acinetobacter baumannii Clinical Isolate as a Convenient Model for Genetic Studies

Maria Soledad Ramirez;Maria Soledad Ramirez;Michelle Don;Andrea K. Merkier;Alfonso J. Soler Bistué

122
Citations
Genetic and molecular characterization of essential components of the Vibrio anguillarum plasmid-mediated iron-transport system.

L A Actis;M E Tolmasky;D H Farrell;J H Crosa

117
Citations
BACTERIAL PLASMIDS: REPLICATION OF EXTRACHROMOSOMAL GENETIC ELEMENTS ENCODING RESISTANCE TO ANTIMICROBIAL COMPOUNDS

Luis A. Actis;Marcelo E. Tolmasky;Jorge H. Crosa

116
Citations
Genetic analysis of the iron uptake region of the Vibrio anguillarum plasmid pJM1: molecular cloning of genetic determinants encoding a novel trans activator of siderophore biosynthesis.

M E Tolmasky;L A Actis;J H Crosa

114
Citations
Characterization of the Vibrio anguillarum fur gene: role in regulation of expression of the FatA outer membrane protein and catechols.

M E Tolmasky;A M Wertheimer;L A Actis;J H Crosa

110
Citations
Molecular characterization of the iron transport system mediated by the pJM1 plasmid in Vibrio anguillarum 775.

W L Köster;L A Actis;L S Waldbeser;M E Tolmasky

109
Citations
High-copy bacterial plasmids diffuse in the nucleoid-free space, replicate stochastically and are randomly partitioned at cell division

Rodrigo Reyes-Lamothe;Tung Tran;Diane Meas;Laura Lee

109
Citations
Complete Nucleotide Sequence of Klebsiella pneumoniae Multiresistance Plasmid pJHCMW1

Renee Sarno;Glen McGillivary;David J. Sherratt;Luis A. Actis

91
Citations