Udo Hölker

989 total citations
18 papers, 712 citations indexed

About

Udo Hölker is a scholar working on Plant Science, Biotechnology and Molecular Biology. According to data from OpenAlex, Udo Hölker has authored 18 papers receiving a total of 712 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Plant Science, 12 papers in Biotechnology and 3 papers in Molecular Biology. Recurrent topics in Udo Hölker's work include Enzyme-mediated dye degradation (12 papers), Microbial Metabolism and Applications (5 papers) and Biochemical and biochemical processes (5 papers). Udo Hölker is often cited by papers focused on Enzyme-mediated dye degradation (12 papers), Microbial Metabolism and Applications (5 papers) and Biochemical and biochemical processes (5 papers). Udo Hölker collaborates with scholars based in Germany, Slovakia and Hungary. Udo Hölker's co-authors include J. Lenz, M. Höfer, Stephan Ludwig, R. M. Fakoussa, Larissa Tetsch, Ĺudovı́t Varečka, Daniela Hudecová, T. Érsek, Stephan Große and Petra Olejníková and has published in prestigious journals such as Applied Microbiology and Biotechnology, Current Opinion in Microbiology and Fuel Processing Technology.

In The Last Decade

Udo Hölker

17 papers receiving 662 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Udo Hölker Germany	12	369	296	237	216	93	18	712
Prakitsin Sihanonth Thailand	18	432 1.2×	208 0.7×	176 0.7×	249 1.2×	266 2.9×	56	980
Hena Dhar India	10	437 1.2×	283 1.0×	303 1.3×	369 1.7×	43 0.5×	23	972
B. Rajasekhar Reddy India	19	285 0.8×	261 0.9×	306 1.3×	320 1.5×	32 0.3×	53	904
Ángela Machuca Chile	11	482 1.3×	141 0.5×	148 0.6×	137 0.6×	116 1.2×	32	718
Takefumi Hattori Japan	23	981 2.7×	332 1.1×	661 2.8×	787 3.6×	145 1.6×	66	1.7k
Alexander N. Kapich Belarus	10	704 1.9×	391 1.3×	349 1.5×	94 0.4×	150 1.6×	19	908
Bee Hameeda India	19	728 2.0×	161 0.5×	125 0.5×	296 1.4×	32 0.3×	44	1.2k
Dairong Qiao China	18	261 0.7×	159 0.5×	234 1.0×	555 2.6×	51 0.5×	82	1.1k
Yong‐Lark Choi South Korea	17	362 1.0×	366 1.2×	170 0.7×	392 1.8×	24 0.3×	55	942
Xingming Yang China	12	219 0.6×	230 0.8×	240 1.0×	271 1.3×	36 0.4×	26	716

Countries citing papers authored by Udo Hölker

Since Specialization

Citations

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

Fields of papers citing papers by Udo Hölker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Udo Hölker

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

All Works

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18 of 18 papers shown

Tetsch, Larissa, et al.. (2006). Molecular and enzymatic characterisation of extra- and intracellular laccases from the acidophilic ascomycete Hortaea acidophila. Antonie van Leeuwenhoek. 90(2). 183–194. 23 indexed citations

Olejníková, Petra, et al.. (2005). Characterization of microorganisms isolated from lignite excavated from the Záhorie coal mine (southwestern Slovakia). Research in Microbiology. 156(9). 932–943. 33 indexed citations

Hölker, Udo & J. Lenz. (2005). Solid-state fermentation — are there any biotechnological advantages?. Current Opinion in Microbiology. 8(3). 301–306. 314 indexed citations

Vargovič, Peter, et al.. (2005). Developmental changes in Trichoderma viride enzymes abundant in conidia and the light‐induced conidiation signalling pathway. Journal of Basic Microbiology. 45(3). 219–229. 17 indexed citations

Müller, Tobias, et al.. (2005). Isolation and Sequencing of a New Glucoamylase Gene from an Aspergillus niger Aggregate Strain (DSM 823) Molecularly Classified as Aspergillus tubingensis. Antonie van Leeuwenhoek. 88(3-4). 267–275. 3 indexed citations

Hölker, Udo, et al.. (2002). Solubilization of low-rank coal by Trichoderma atroviride: Evidence for the involvement of hydrolytic and oxidative enzymes by using 14C-labelled lignite. Journal of Industrial Microbiology & Biotechnology. 28(4). 207–212. 30 indexed citations

Hölker, Udo, et al.. (2002). Extracellular laccases in ascomycetesTrichoderma atroviride andTrichoderma harzianum. Folia Microbiologica. 47(4). 423–427. 67 indexed citations

Hölker, Udo & M. Höfer. (2002). Solid substrate fermentation of lignite by the coal-solubilizing mould, Trichoderma atroviride, in a new type of bioreactor. Biotechnology Letters. 24(19). 1643–1645. 21 indexed citations

Hölker, Udo, et al.. (2002). Extracellular Laccases in Ascomycetes atroviride and Trichoderma harzianum. 1 indexed citations

10.

Höfer, M., et al.. (2000). Differential expression of manganese peroxidase and laccase in white-rot fungi in the presence of manganese or aromatic compounds. Applied Microbiology and Biotechnology. 54(5). 686–691. 74 indexed citations

11.

Hölker, Udo, et al.. (1999). Evidence for and expression of a laccase gene in three basidiomycetes degrading humic acids. Applied Microbiology and Biotechnology. 52(1). 66–69. 14 indexed citations

12.

Hölker, Udo, et al.. (1999). Mechanisms of coal solubilization by the deuteromycetes Trichoderma atroviride and Fusarium oxysporum. Applied Microbiology and Biotechnology. 52(1). 57–59. 43 indexed citations

13.

Hölker, Udo, et al.. (1997). Components of the ligninolytic system of Fusarium oxysporum and Trichoderma atroviride. Fuel Processing Technology. 52(1-3). 73–77. 11 indexed citations

14.

Hölker, Udo, et al.. (1997). A system to analyze the complex physiological states of coal solubilizing fungi. Fuel Processing Technology. 52(1-3). 65–71. 13 indexed citations

15.

Hölker, Udo, et al.. (1996). Molecular evidence of a lignin peroxidase H8 homologue inFusarium oxysporum. Folia Microbiologica. 41(5). 445–448. 5 indexed citations

16.

Hölker, Udo, R. M. Fakoussa, & M. Höfer. (1995). Growth substrates control the ability of Fusarium oxysporum to solubilize low-rank coal. Applied Microbiology and Biotechnology. 44(3-4). 351–355. 31 indexed citations

17.

Hölker, Udo, T. Érsek, & M. Höfer. (1993). Changes in ion fluxes and the energy demand during spore development inPhytophthora infestans zoospores. Folia Microbiologica. 38(3). 193–200. 5 indexed citations

18.

Érsek, T., Udo Hölker, & M. Höfer. (1991). Non-lethal immobilization of zoospores of Phytophthora infestans by Li+. Mycological Research. 95(8). 970–972. 7 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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