Peter van Berkum

6.1k total citations
113 papers, 4.4k citations indexed

About

Peter van Berkum is a scholar working on Plant Science, Ecology and Molecular Biology. According to data from OpenAlex, Peter van Berkum has authored 113 papers receiving a total of 4.4k indexed citations (citations by other indexed papers that have themselves been cited), including 97 papers in Plant Science, 32 papers in Ecology and 13 papers in Molecular Biology. Recurrent topics in Peter van Berkum's work include Legume Nitrogen Fixing Symbiosis (83 papers), Plant nutrient uptake and metabolism (30 papers) and Coastal wetland ecosystem dynamics (27 papers). Peter van Berkum is often cited by papers focused on Legume Nitrogen Fixing Symbiosis (83 papers), Plant nutrient uptake and metabolism (30 papers) and Coastal wetland ecosystem dynamics (27 papers). Peter van Berkum collaborates with scholars based in United States, Australia and Egypt. Peter van Berkum's co-authors include Bertrand D. Eardly, J. S. Angle, Desta Beyene, Reda A.I. Abou-Shanab, Jeffry J. Fuhrmann, Nichole R. O’Neill, W. X. Chen, Marcos Paz Saraiva Câmara, Charles Sloger and B. Ben Bohlool and has published in prestigious journals such as Applied and Environmental Microbiology, PLANT PHYSIOLOGY and Journal of Bacteriology.

In The Last Decade

Peter van Berkum

112 papers receiving 4.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Peter van Berkum United States 36 3.5k 996 704 591 440 113 4.4k
Kristina Lindström Finland 43 4.4k 1.3× 1.6k 1.6× 1.2k 1.7× 1.1k 1.9× 437 1.0× 140 6.2k
Raúl Rivas Spain 42 3.5k 1.0× 1.2k 1.2× 615 0.9× 1.6k 2.7× 182 0.4× 125 5.0k
Pedro F. Mateos Spain 42 3.8k 1.1× 1.1k 1.1× 786 1.1× 1.4k 2.3× 164 0.4× 120 5.0k
Jesús Caballero-Mellado Mexico 34 3.3k 1.0× 523 0.5× 323 0.5× 950 1.6× 213 0.5× 51 4.1k
Eustoquio Martı́nez-Molina Spain 43 3.7k 1.1× 1.2k 1.2× 684 1.0× 1.5k 2.6× 146 0.3× 112 5.0k
Andrea Squartini Italy 33 2.2k 0.6× 635 0.6× 384 0.5× 608 1.0× 251 0.6× 195 4.0k
Ann M. Hirsch United States 47 5.9k 1.7× 722 0.7× 1.5k 2.1× 1.4k 2.3× 148 0.3× 154 7.0k
Álvaro Péix Spain 37 3.1k 0.9× 1.1k 1.1× 654 0.9× 1.1k 1.9× 184 0.4× 124 4.3k
Thomas Hurek Germany 36 4.2k 1.2× 1.3k 1.3× 309 0.4× 1.5k 2.5× 511 1.2× 66 5.4k
Barbara Reinhold‐Hurek Germany 41 5.0k 1.4× 1.8k 1.8× 412 0.6× 1.9k 3.2× 825 1.9× 99 7.0k

Countries citing papers authored by Peter van Berkum

Since Specialization
Citations

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

Fields of papers citing papers by Peter van Berkum

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Peter van Berkum. 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 Peter van Berkum. The network helps show where Peter van Berkum may publish in the future.

Co-authorship network of co-authors of Peter van Berkum

This figure shows the co-authorship network connecting the top 25 collaborators of Peter van Berkum. A scholar is included among the top collaborators of Peter van Berkum 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 Peter van Berkum. Peter van Berkum 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.
Eardly, Bertrand D., Julie Ardley, Peter van Berkum, et al.. (2022). The Genome of the Acid Soil-Adapted Strain Rhizobium favelukesii OR191 Encodes Determinants for Effective Symbiotic Interaction With Both an Inverted Repeat Lacking Clade and a Phaseoloid Legume Host. Frontiers in Microbiology. 13. 735911–735911. 2 indexed citations
2.
Reeve, Wayne, Peter van Berkum, Julie Ardley, et al.. (2017). High-quality permanent draft genome sequence of the Bradyrhizobium elkanii type strain USDA 76T, isolated from Glycine max (L.) Merr. Standards in Genomic Sciences. 12(1). 10 indexed citations
3.
Berkum, Peter van, Milagros León‐Barrios, Encarna Velázquez, et al.. (2017). High-quality draft genome sequence of Ensifer meliloti Mlalz-1, a microsymbiont of Medicago laciniata (L.) miller collected in Lanzarote, Canary Islands, Spain. Standards in Genomic Sciences. 12(1). 58–58. 1 indexed citations
4.
Abou-Shanab, Reda A.I., J. S. Angle, & Peter van Berkum. (2007). Chromate-Tolerant Bacteria for Enhanced Metal Uptake byEichhornia Crassipes(MART.). International Journal of Phytoremediation. 9(2). 91–105. 34 indexed citations
5.
Eardly, Bertrand D. & Peter van Berkum. (2005). Use of population genetic structure to define species limits in the Rhizobiaceae. Symbiosis. 38(2). 109–122. 5 indexed citations
6.
7.
Câmara, Marcos Paz Saraiva, Nichole R. O’Neill, & Peter van Berkum. (2002). Phylogeny of Stemphylium spp. based on ITS and glyceraldehyde-3-phosphate dehydrogenase gene sequences. Mycologia. 94(4). 660–672. 82 indexed citations
8.
Berkum, Peter van & Jeffry J. Fuhrmann. (2001). Characterization of soybean bradyrhizobia for which serogroup affinities have not been identified. Canadian Journal of Microbiology. 47(6). 519–525. 12 indexed citations
9.
Câmara, Marcos Paz Saraiva, Nichole R. O’Neill, Peter van Berkum, Peter H. Dernoeden, & Mary E. Palm. (2000). Ophiosphaerella agrostis sp. nov. and its relationship to other species of Ophiosphaerella. Mycologia. 92(2). 317–325. 26 indexed citations
10.
11.
Berkum, Peter van, et al.. (1998). Rhizobium mongolense sp. nov. is one of three rhizobial genotypes identified which nodulate and form nitrogen-fixing symbioses with Medicago ruthenica [(L.) Ledebour]. International Journal of Systematic Bacteriology. 48(1). 13–22. 101 indexed citations
12.
Batzli, Janet, William R. Graves, & Peter van Berkum. (1992). Isolation and Characterization of Rhizobia Effective with Maackia amurensis. Journal of the American Society for Horticultural Science. 117(4). 612–616. 5 indexed citations
13.
Batzli, Janet, W. Graves, & Peter van Berkum. (1990). MAACKIA AMURENSIS NODULATES AND FIXES DINITROGEN. HortScience. 25(9). 1068g–1069. 1 indexed citations
14.
Nautiyal, Chandra Shekhar, Peter van Berkum, Michael J. Sadowsky, & D L Keister. (1989). Cytochrome Mutants of Bradyrhizobium Induced by Transposon Tn5. PLANT PHYSIOLOGY. 90(2). 553–559. 21 indexed citations
15.
Sloger, Charles & Peter van Berkum. (1988). Endogenous Ethylene Production Is a Potential Problem in the Measurement of Nitrogenase Activity Associated with Excised Corn and Sorghum Roots. PLANT PHYSIOLOGY. 88(1). 115–118. 7 indexed citations
16.
Berkum, Peter van, Charles Sloger, D. F. Weber, Perry B. Cregan, & H. H. Keyser. (1985). Relationship between Ureide N and N2 Fixation, Aboveground N Accumulation, Acetylene Reduction, and Nodule Mass in Greenhouse and Field Studies with Glycine max L. (Merr). PLANT PHYSIOLOGY. 77(1). 53–58. 29 indexed citations
17.
Cregan, Perry B. & Peter van Berkum. (1984). Genetics of nitrogen metabolism and physiological/biochemical selection for increased grain crop productivity. Theoretical and Applied Genetics. 67(2-3). 97–111. 61 indexed citations
18.
19.
Berkum, Peter van & Charles Sloger. (1982). Physiology of Root-Associated Nitrogenase Activity in Oryza sativa. PLANT PHYSIOLOGY. 69(5). 1161–1164. 9 indexed citations
20.
Keyser, H. H., Peter van Berkum, & D. F. Weber. (1982). A Comparative Study of the Physiology of Symbioses Formed by Rhizobium japonicum with Glycine max, Vigna unguiculata, and Macroptilium atropurpurem. PLANT PHYSIOLOGY. 70(6). 1626–1630. 45 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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