Klaus Hahlbrock

23.0k total citations · 4 hit papers
207 papers, 17.9k citations indexed

About

Klaus Hahlbrock is a scholar working on Molecular Biology, Plant Science and Biotechnology. According to data from OpenAlex, Klaus Hahlbrock has authored 207 papers receiving a total of 17.9k indexed citations (citations by other indexed papers that have themselves been cited), including 167 papers in Molecular Biology, 126 papers in Plant Science and 38 papers in Biotechnology. Recurrent topics in Klaus Hahlbrock's work include Plant tissue culture and regeneration (94 papers), Plant Gene Expression Analysis (90 papers) and Plant-Microbe Interactions and Immunity (56 papers). Klaus Hahlbrock is often cited by papers focused on Plant tissue culture and regeneration (94 papers), Plant Gene Expression Analysis (90 papers) and Plant-Microbe Interactions and Immunity (56 papers). Klaus Hahlbrock collaborates with scholars based in Germany, United States and United Kingdom. Klaus Hahlbrock's co-authors include Dierk Scheel, Imre E. Somssich, Elmon Schmelzer, Michael Becker-André, Fritz Kreuzaler, Hans Grisebach, Erich Kombrink, Elke Logemann, Joseph Chappell and Wolfgang A. Schulz and has published in prestigious journals such as Nature, Cell and Proceedings of the National Academy of Sciences.

In The Last Decade

Klaus Hahlbrock

206 papers receiving 16.8k citations

Hit Papers

Physiology and Molecular Biology of Phenylpropanoid Metab... 1989 2026 2001 2013 1989 1996 1989 1994 400 800 1.2k
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.

  1. Physiology and Molecular Biology of Phenylpropanoid Metabolism
    1989 1.4k citations Klaus Hahlbrock, Dierk Scheel Annual Review of Plant Physiology and Plant Molecular Biology profile →
  2. Interaction of elicitor-induced DNA-binding proteins with elicitor response elements in the promoters of parsley PR1 genes.
    1996 556 citations Klaus Hahlbrock, Imre E. Somssich et al. profile →
  3. Absolute mRNA quantification using the polymerase chain reaction (PCR). A novel approach by aPCR aidedtranscipttitration assay (PATTY)
    1989 536 citations Michael Becker-André, Klaus Hahlbrock Nucleic Acids Research profile →
  4. High affinity binding of a fungal oligopeptide elicitor to parsley plasma membranes triggers multiple defense responses
    1994 453 citations Thorsten Nürnberger, Dirk Nennstiel et al. Cell profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Klaus Hahlbrock Germany 78 12.4k 12.3k 1.9k 971 888 207 17.9k
Chris Lamb United States 64 11.8k 1.0× 18.2k 1.5× 1.3k 0.7× 1.6k 1.6× 725 0.8× 115 22.3k
Imre E. Somssich Germany 56 12.3k 1.0× 15.7k 1.3× 1.1k 0.6× 777 0.8× 525 0.6× 90 18.7k
Anne Osbourn United Kingdom 67 9.2k 0.7× 6.9k 0.6× 915 0.5× 1.2k 1.3× 696 0.8× 164 14.4k
G. Paul Bolwell United Kingdom 48 4.7k 0.4× 7.2k 0.6× 752 0.4× 574 0.6× 1.5k 1.7× 124 11.0k
Jen Sheen United States 85 21.0k 1.7× 33.5k 2.7× 1.2k 0.6× 1.1k 1.2× 330 0.4× 148 38.3k
Harry J. Klee United States 82 11.1k 0.9× 15.4k 1.3× 1.4k 0.8× 493 0.5× 2.4k 2.7× 176 19.9k
Cathie Martin United Kingdom 76 12.8k 1.0× 12.1k 1.0× 1.6k 0.8× 349 0.4× 3.1k 3.5× 198 19.7k
Erich Grotewold United States 68 14.5k 1.2× 12.3k 1.0× 861 0.5× 385 0.4× 2.7k 3.1× 183 19.4k
Donald Grierson United Kingdom 73 9.3k 0.7× 13.3k 1.1× 735 0.4× 402 0.4× 1.8k 2.0× 302 17.3k
Bernd Weißhaar Germany 62 17.0k 1.4× 15.0k 1.2× 937 0.5× 384 0.4× 2.6k 2.9× 165 21.7k

Countries citing papers authored by Klaus Hahlbrock

Since Specialization
Citations

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

Fields of papers citing papers by Klaus Hahlbrock

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Klaus Hahlbrock

This figure shows the co-authorship network connecting the top 25 collaborators of Klaus Hahlbrock. A scholar is included among the top collaborators of Klaus Hahlbrock 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 Klaus Hahlbrock. Klaus Hahlbrock 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.
Schmelzer, Elmon, et al.. (2000). A novel regulatory element involved in rapid activation of parsley ELI7 gene family members by fungal elicitor or pathogen infection. Molecular Plant Pathology. 1(4). 243–251. 43 indexed citations
2.
Hahlbrock, Klaus, et al.. (2000). Two Differentially Regulated Class II Chitinases from Parsley. Biological Chemistry. 381(8). 667–78. 11 indexed citations
3.
Logemann, Elke, et al.. (1994). Structural and Catalytic Properties of the Four Phenylalanine Ammonia‐Lyase Isoenzymes from Parsley (Petroselinum Crispum Nym.). European Journal of Biochemistry. 225(1). 491–499. 117 indexed citations
4.
Frohnmeyer, Hanns, Klaus Hahlbrock, & Eberhard Schäfer. (1994). A light‐responsive in vitro transcription system from evacuolated parsley protoplasts. The Plant Journal. 5(3). 437–449. 27 indexed citations
5.
Nürnberger, Thorsten, Dirk Nennstiel, Thorsten Jabs, et al.. (1994). High affinity binding of a fungal oligopeptide elicitor to parsley plasma membranes triggers multiple defense responses. Cell. 78(3). 449–460. 453 indexed citations breakdown →
6.
Colling, Christiane, Klaus Hahlbrock, Thorsten Nürnberger, et al.. (1993). Studies on elicitor recognition and signal transduction in plant defence. Journal of Experimental Botany. 44. 257–268. 45 indexed citations
7.
Schweizer, Patrick & Klaus Hahlbrock. (1993). Post-transcriptional transfer of ?-thio affinity label to RNA in isolated parsley nuclei. Plant Molecular Biology. 21(5). 943–947. 3 indexed citations
8.
Weißhaar, Bernd, et al.. (1991). Regulatory elements required for light-mediated expression of the Petroselinum crispum chalcone synthase gene.. PubMed. 45. 191–210. 18 indexed citations
9.
Hahlbrock, Klaus & Dierk Scheel. (1989). Physiology and Molecular Biology of Phenylpropanoid Metabolism. Annual Review of Plant Physiology and Plant Molecular Biology. 40(1). 347–369. 1388 indexed citations breakdown →
10.
Somssich, Imre E., et al.. (1989). Differential early activation of defense-related genes in elicitor-treated parsley cells. Plant Molecular Biology. 12(2). 227–234. 99 indexed citations
11.
Becker-André, Michael & Klaus Hahlbrock. (1989). Absolute mRNA quantification using the polymerase chain reaction (PCR). A novel approach by aPCR aidedtranscipttitration assay (PATTY). Nucleic Acids Research. 17(22). 9437–9446. 536 indexed citations breakdown →
12.
13.
Hahlbrock, Klaus, et al.. (1983). Differential Gene Activation in Higher Plants. Berichte der Deutschen Botanischen Gesellschaft. 96(1). 375–377. 1 indexed citations
14.
Lawton, Michael, Richard A. Dixon, Klaus Hahlbrock, & Chris Lamb. (1983). Elicitor Induction of mRNA Activity. European Journal of Biochemistry. 130(1). 131–139. 70 indexed citations
15.
Lawton, Michael, Richard A. Dixon, Klaus Hahlbrock, & Chris Lamb. (1983). Rapid Induction of the Synthesis of Phenylalanine Ammonia‐Lyase and of Chalcone Synthase in Elicitor‐Treated Plant Cells. European Journal of Biochemistry. 129(3). 593–601. 86 indexed citations
16.
Light, Robley J. & Klaus Hahlbrock. (1980). Randomization of the Flavonoid A Ring during Biosynthesis of Kaempferol from [1,2 -13C2] Acetate in Cell Suspension Cultures of Parsley. Zeitschrift für Naturforschung C. 35(9-10). 717–721. 3 indexed citations
17.
18.
Hahlbrock, Klaus, et al.. (1974). Determination of specific growth stages of plant cell suspension cultures by monitoring conductivity changes in the medium. Planta. 118(1). 75–84. 46 indexed citations
19.
Hahlbrock, Klaus, Jürgen Ebel, R. Ortmann, et al.. (1971). Regulation of enzyme activities related to the biosynthesis of flavone glycosides in cell suspension culture of parsley (Petroselinum hortense). Biochimica et Biophysica Acta (BBA) - General Subjects. 244(1). 7–15. 120 indexed citations
20.

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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