Ricardo V. Ullán

1.5k total citations
36 papers, 1.1k citations indexed

About

Ricardo V. Ullán is a scholar working on Molecular Biology, Pharmacology and Plant Science. According to data from OpenAlex, Ricardo V. Ullán has authored 36 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Molecular Biology, 23 papers in Pharmacology and 10 papers in Plant Science. Recurrent topics in Ricardo V. Ullán's work include Microbial Natural Products and Biosynthesis (22 papers), Bacterial Genetics and Biotechnology (8 papers) and Mycotoxins in Agriculture and Food (6 papers). Ricardo V. Ullán is often cited by papers focused on Microbial Natural Products and Biosynthesis (22 papers), Bacterial Genetics and Biotechnology (8 papers) and Mycotoxins in Agriculture and Food (6 papers). Ricardo V. Ullán collaborates with scholars based in Spain, France and Czechia. Ricardo V. Ullán's co-authors include Juan F. Martı́n, Carlos García‐Estrada, Fernando Teijeira, Javier Casqueiro, Katarína Kosalková, Juan-Francisco Martı́n, Inmaculada Vaca, Silvia M. Albillos, Ramiro P. Godio and Óscar Bañuelos and has published in prestigious journals such as Journal of Biological Chemistry, Applied and Environmental Microbiology and Biochemical Journal.

In The Last Decade

Ricardo V. Ullán

36 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ricardo V. Ullán Spain 20 680 667 344 232 86 36 1.1k
Jakob Blæsbjerg Nielsen Denmark 15 637 0.9× 973 1.5× 320 0.9× 232 1.0× 151 1.8× 17 1.3k
J M Fernández-Abalos Spain 17 432 0.6× 718 1.1× 450 1.3× 406 1.8× 110 1.3× 23 1.2k
Espen Fjærvik Norway 15 522 0.8× 504 0.8× 204 0.6× 422 1.8× 52 0.6× 16 1.0k
Claudia König Germany 9 280 0.4× 467 0.7× 155 0.5× 201 0.9× 71 0.8× 9 799
Masayuki Machida Japan 18 385 0.6× 998 1.5× 376 1.1× 229 1.0× 218 2.5× 45 1.4k
Chigusa Takahashi United Kingdom 6 502 0.7× 568 0.9× 346 1.0× 127 0.5× 54 0.6× 10 946
Barbara Silakowski Germany 15 881 1.3× 804 1.2× 152 0.4× 400 1.7× 54 0.6× 15 1.3k
Xiaolong Huang China 16 281 0.4× 321 0.5× 235 0.7× 172 0.7× 59 0.7× 40 696
Jorge C. Navarro-Muñoz Netherlands 7 418 0.6× 467 0.7× 147 0.4× 137 0.6× 79 0.9× 15 736
Ivo Zadra Austria 18 500 0.7× 860 1.3× 593 1.7× 106 0.5× 201 2.3× 20 1.3k

Countries citing papers authored by Ricardo V. Ullán

Since Specialization
Citations

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

Fields of papers citing papers by Ricardo V. Ullán

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ricardo V. Ullán. 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 Ricardo V. Ullán. The network helps show where Ricardo V. Ullán may publish in the future.

Co-authorship network of co-authors of Ricardo V. Ullán

This figure shows the co-authorship network connecting the top 25 collaborators of Ricardo V. Ullán. A scholar is included among the top collaborators of Ricardo V. Ullán 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 Ricardo V. Ullán. Ricardo V. Ullán 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.
Ullán, Ricardo V., et al.. (2018). Secreted protein extract analyses present the plant pathogen Alternaria alternata as a suitable industrial enzyme toolbox. Journal of Proteomics. 177. 48–64. 13 indexed citations
2.
Poirier, Elisabeth, et al.. (2016). Penicillium roqueforti PR toxin gene cluster characterization. Applied Microbiology and Biotechnology. 101(5). 2043–2056. 22 indexed citations
3.
Martı́n, Juan F., et al.. (2014). New insights into the isopenicillin N transport in Penicillium chrysogenum. Metabolic Engineering. 22. 89–103. 27 indexed citations
4.
Martı́n, Juan-Francisco, Carlos García‐Estrada, & Ricardo V. Ullán. (2013). Transport of substrates into peroxisomes: the paradigm of β-lactam biosynthetic intermediates. BioMolecular Concepts. 4(2). 197–211. 11 indexed citations
5.
Martı́n, Jorge, Jorge Martı́n, Carlos García‐Estrada, et al.. (2012). The inducers 1,3-diaminopropane and spermidine produce a drastic increase in the expression of the penicillin biosynthetic genes for prolonged time, mediated by the LaeA regulator. Fungal Genetics and Biology. 49(12). 1004–1013. 34 indexed citations
6.
Ullán, Ricardo V., et al.. (2012). The transport of phenylacetic acid across the peroxisomal membrane is mediated by the PaaT protein in Penicillium chrysogenum. Applied Microbiology and Biotechnology. 97(7). 3073–3084. 24 indexed citations
7.
Martı́n, Jorge, Jorge Martı́n, Carlos García‐Estrada, et al.. (2011). Characterization of an Autoinducer of Penicillin Biosynthesis in Penicillium chrysogenum. Applied and Environmental Microbiology. 77(16). 5688–5696. 22 indexed citations
8.
Iranzo, Alfredo, et al.. (2011). Numerical Investigation of the Effect of Impeller Design Parameters on the Performance of a Multiphase Baffle‐Stirred Reactor. Chemical Engineering & Technology. 34(8). 1271–1280. 5 indexed citations
9.
Leitão, Ana Lúcia, Carlos García‐Estrada, Ricardo V. Ullán, et al.. (2011). Penicillium chrysogenum var. halophenolicum, a new halotolerant strain with potential in the remediation of aromatic compounds in high salt environments. Microbiological Research. 167(2). 79–89. 19 indexed citations
10.
11.
Martı́n, Juan F., Ricardo V. Ullán, & Carlos García‐Estrada. (2009). Regulation and compartmentalization of β‐lactam biosynthesis. Microbial Biotechnology. 3(3). 285–299. 71 indexed citations
12.
Kosalková, Katarína, Carlos García‐Estrada, Ricardo V. Ullán, et al.. (2008). The global regulator LaeA controls penicillin biosynthesis, pigmentation and sporulation, but not roquefortine C synthesis in Penicillium chrysogenum. Biochimie. 91(2). 214–225. 133 indexed citations
13.
Teijeira, Fernando, Ricardo V. Ullán, Susana Guerra, et al.. (2008). The transporter CefM involved in translocation of biosynthetic intermediates is essential for cephalosporin production. Biochemical Journal. 418(1). 113–124. 42 indexed citations
14.
Ullán, Ricardo V., Ramiro P. Godio, Fernando Teijeira, et al.. (2008). RNA-silencing in Penicillium chrysogenum and Acremonium chrysogenum: Validation studies using β-lactam genes expression. Journal of Microbiological Methods. 75(2). 209–218. 66 indexed citations
15.
Ullán, Ricardo V., Sonia Campoy, Javier Casqueiro, Francisco J. Fernández, & Juan F. Martı́n. (2007). Deacetylcephalosporin C Production in Penicillium chrysogenum by Expression of the Isopenicillin N Epimerization, Ring Expansion, and Acetylation Genes. Chemistry & Biology. 14(3). 329–339. 30 indexed citations
16.
Lamas‐Maceiras, Mónica, Ricardo V. Ullán, Sonia Campoy, et al.. (2005). Characterization of the oat1 gene of Penicillium chrysogenum encoding an ω-aminotransferase: induction by L-lysine, L-ornithine and L-arginine and repression by ammonium. Molecular Genetics and Genomics. 274(3). 283–294. 9 indexed citations
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Ullán, Ricardo V., et al.. (2002). The cefT gene of Acremonium chrysogenum C10 encodes a putative multidrug efflux pump protein that significantly increases cephalosporin C production. Molecular Genetics and Genomics. 267(5). 673–683. 69 indexed citations
20.
Ullán, Ricardo V., Javier Casqueiro, Óscar Bañuelos, et al.. (2002). A Novel Epimerization System in Fungal Secondary Metabolism Involved in the Conversion of Isopenicillin N into Penicillin N inAcremonium chrysogenum. Journal of Biological Chemistry. 277(48). 46216–46225. 54 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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