Merja Penttilä

24.3k total citations · 2 hit papers
314 papers, 17.6k citations indexed

About

Merja Penttilä is a scholar working on Molecular Biology, Biomedical Engineering and Biotechnology. According to data from OpenAlex, Merja Penttilä has authored 314 papers receiving a total of 17.6k indexed citations (citations by other indexed papers that have themselves been cited), including 231 papers in Molecular Biology, 172 papers in Biomedical Engineering and 82 papers in Biotechnology. Recurrent topics in Merja Penttilä's work include Biofuel production and bioconversion (168 papers), Fungal and yeast genetics research (121 papers) and Microbial Metabolic Engineering and Bioproduction (90 papers). Merja Penttilä is often cited by papers focused on Biofuel production and bioconversion (168 papers), Fungal and yeast genetics research (121 papers) and Microbial Metabolic Engineering and Bioproduction (90 papers). Merja Penttilä collaborates with scholars based in Finland, United Kingdom and United States. Merja Penttilä's co-authors include Markku Saloheimo, Marja Ilmén, Tiina Nakari‐Setälä, Laura Ruohonen, Nina Aro, Peter Richard, Anu Saloheimo, Tiina Pakula, Markus B. Linder and Mervi Toivari and has published in prestigious journals such as Science, Nucleic Acids Research and Advanced Materials.

In The Last Decade

Merja Penttilä

311 papers receiving 16.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

A versatile transformation system for the cellulolytic filamentous fungus Trichoderma reesei

1987 525 citations Merja Penttilä et al. Gene profile →
Hydrophobins: the protein-amphiphiles of filamentous fungi

2005 508 citations Markus B. Linder, Géza R. Szilvay et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Merja Penttilä Finland	77	12.4k	10.0k	4.7k	3.9k	1.3k	314	17.6k
Raphael Lamed Israel	67	8.1k 0.6×	9.3k 0.9×	6.2k 1.3×	4.1k 1.0×	328 0.2×	238	15.9k
Harry J. Gilbert United Kingdom	75	9.1k 0.7×	8.3k 0.8×	8.4k 1.8×	6.2k 1.6×	294 0.2×	267	17.9k
Lisbeth Olsson Sweden	59	7.4k 0.6×	6.8k 0.7×	1.8k 0.4×	1.4k 0.4×	205 0.2×	254	10.8k
L. O. Ingram United States	76	13.2k 1.1×	9.9k 1.0×	2.2k 0.5×	1.1k 0.3×	212 0.2×	271	16.8k
Christoph Wittmann Germany	73	11.2k 0.9×	5.5k 0.6×	1.6k 0.3×	1.2k 0.3×	163 0.1×	245	15.2k
Johan M. Thevelein Belgium	90	18.3k 1.5×	5.9k 0.6×	1.5k 0.3×	8.5k 2.2×	2.0k 1.5×	311	25.6k
Tuula T. Teeri Sweden	59	5.4k 0.4×	6.3k 0.6×	3.9k 0.8×	4.5k 1.2×	219 0.2×	139	11.2k
Michael G. Hahn United States	61	6.2k 0.5×	2.8k 0.3×	1.1k 0.2×	8.6k 2.2×	740 0.6×	221	12.7k
Jean François France	58	7.3k 0.6×	2.4k 0.2×	1.1k 0.2×	2.7k 0.7×	962 0.7×	275	11.1k
Diethard Mattanovich Austria	61	9.6k 0.8×	3.2k 0.3×	1.6k 0.3×	1.1k 0.3×	1.3k 1.0×	212	11.5k

Countries citing papers authored by Merja Penttilä

Since Specialization

Citations

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

Fields of papers citing papers by Merja Penttilä

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Merja Penttilä

This figure shows the co-authorship network connecting the top 25 collaborators of Merja Penttilä. A scholar is included among the top collaborators of Merja Penttilä 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 Merja Penttilä. Merja Penttilä is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Mojžita, Dominik, Hannu Maaheimo, Satu Hilditch, et al.. (2025). Discovery of Cortinarius O-methyltransferases for the heterologous production of dermolutein and physcion. Biotechnology for Biofuels and Bioproducts. 18(1). 25–25. 1 indexed citations

Maaheimo, Hannu, et al.. (2024). Glycoside Phosphorylase Catalyzed Cellulose and β-1,3-Glucan Synthesis Using Chromophoric Glycosyl Acceptors. Biomacromolecules. 25(8). 5048–5057. 4 indexed citations

Kostiainen, Mauri A., Arri Priimägi, Jaakko V. I. Timonen, et al.. (2024). Materials Inspired by Living Functions. Advanced Functional Materials. 34(37). 14 indexed citations

Toivari, Mervi, et al.. (2023). Production of d-glucaric acid with phosphoglucose isomerase-deficient Saccharomyces cerevisiae. Biotechnology Letters. 46(1). 69–83. 2 indexed citations

Scoppola, Ernesto, Wolfgang Wagermaier, Marc Baldus, et al.. (2023). The complex structure of Fomes fomentarius represents an architectural design for high-performance ultralightweight materials. Science Advances. 9(8). eade5417–eade5417. 30 indexed citations

Castillo, Sandra, Dorothee Barth, Mikko Arvas, et al.. (2016). Whole-genome metabolic model of Trichoderma reesei built by comparative reconstruction. Biotechnology for Biofuels. 9(1). 252–252. 16 indexed citations

Koivistoinen, Outi, et al.. (2014). The industrial potential of bio-based glycolic acid and polyglycolic acid. 67(1). 12. 6 indexed citations

Ribeiro, Orquídea, Frederico Magalhães, Tatiana Quinta Aguiar, et al.. (2013). Random and direct mutagenesis to enhance protein secretion in Ashbya gossypii . Bioengineered. 4(5). 322–331. 29 indexed citations

Arvas, Mikko, Teemu Kivioja, Aaron P. Mitchell, et al.. (2011). Comparison of protein coding gene contents of the fungal phyla Pezizomycotina and Saccharomycotina-10. Figshare. 1 indexed citations

10.

Rintala, Eija, Paula Jouhten, Mervi Toivari, et al.. (2011). Transcriptional Responses of Saccharomyces cerevisiae to Shift from Respiratory and Respirofermentative to Fully Fermentative Metabolism. OMICS A Journal of Integrative Biology. 15(7-8). 461–476. 23 indexed citations

11.

Steiger, Matthias G., Marika Vitikainen, Kurt Brunner, et al.. (2010). Transformation System for Hypocrea jecorina ( Trichoderma reesei ) That Favors Homologous Integration and Employs Reusable Bidirectionally Selectable Markers. Applied and Environmental Microbiology. 77(1). 114–121. 103 indexed citations

12.

Toivari, Mervi, Hannu Maaheimo, Merja Penttilä, & Laura Ruohonen. (2009). Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Applied Microbiology and Biotechnology. 85(3). 731–739. 22 indexed citations

13.

Rintala, Eija, Mervi Toivari, Juha‐Pekka Pitkänen, et al.. (2009). Low oxygen levels as a trigger for enhancement of respiratory metabolism in Saccharomyces cerevisiae. BMC Genomics. 10(1). 461–461. 51 indexed citations

14.

Richard, Peter, Ritva Verho, Mikko Putkonen, John Londesborough, & Merja Penttilä. (2003). Production of ethanol from L-arabinose by Saccharomyces cerevisiae containing a fungal L-arabinose pathway.. Journal of Biological Chemistry. 3(2). 185–189. 3 indexed citations

15.

Collén, Anna, Klaus Selber, Teppo Hyytiä, et al.. (2002). Primary recovery of a genetically engineered Trichoderma reesei endoglucanase I (Cel 7B) fusion protein in cloud point extraction systems. Biotechnology and Bioengineering. 78(4). 385–394. 11 indexed citations

16.

Alatalo, Edward, et al.. (1993). Isolation of Trichoderma reesei genes highly expressed on glucose-containing media: characterization of the tef1 gene encoding translation elongation factor 1α. Gene. 136(1-2). 313–318. 44 indexed citations

17.

Hallborn, Johan, Mats Walfridsson, Ulla Airaksinen, et al.. (1991). Xylitol Production by Recombinant Saccharomyces Cerevisiae. Bio/Technology. 9(11). 1090–1095. 160 indexed citations

18.

Zurbriggen, Beat, Merja Penttilä, Liisa Viikari, & Michael Bailey. (1991). Pilot scale production of a Trichoderma reesei endo-β-glucanase by brewer's yeast. Journal of Biotechnology. 17(2). 133–146. 13 indexed citations

19.

Knowles, Jonathan C., et al.. (1987). The application of recombinant-DNA technology to cellulases and lignocellulosic wastes. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 321(1561). 449–454. 15 indexed citations

20.

Penttilä, Merja, et al.. (1985). TRANSFER OF GENES-CODING FOR FUNGAL GLUCANASES INTO YEAST. Journal of the Institute of Brewing. 91(3). 123–123. 9 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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