Jan van Niekerk

525 total citations
14 papers, 300 citations indexed

About

Jan van Niekerk is a scholar working on Cell Biology, Plant Science and Molecular Biology. According to data from OpenAlex, Jan van Niekerk has authored 14 papers receiving a total of 300 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Cell Biology, 7 papers in Plant Science and 3 papers in Molecular Biology. Recurrent topics in Jan van Niekerk's work include Plant Pathogens and Fungal Diseases (8 papers), Plant Pathogens and Resistance (5 papers) and Obsessive-Compulsive Spectrum Disorders (2 papers). Jan van Niekerk is often cited by papers focused on Plant Pathogens and Fungal Diseases (8 papers), Plant Pathogens and Resistance (5 papers) and Obsessive-Compulsive Spectrum Disorders (2 papers). Jan van Niekerk collaborates with scholars based in South Africa, Netherlands and United Kingdom. Jan van Niekerk's co-authors include Paul H. Fourie, F. Halleen, L. Mostert, Kieron O’Connor, Frederick Aardema, P.W. Crous, Marcelo Sandoval‐Denis, Vladimiro Guarnaccia, Ad J.J. Maas and A.E. Strever and has published in prestigious journals such as SHILAP Revista de lepidopterología, Anesthesia & Analgesia and LWT.

In The Last Decade

Jan van Niekerk

13 papers receiving 285 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jan van Niekerk South Africa	8	153	151	48	43	40	14	300
Nic Martinez United States	10	133 0.9×	63 0.4×	4 0.1×	27 0.6×	8 0.2×	13	490
Jess A. Gwin United States	14	17 0.1×	191 1.3×	31 0.6×	43 1.0×	8 0.2×	38	528
H. Heck Germany	6	26 0.2×	187 1.2×	31 0.6×	7 0.2×	22 0.6×	16	785
Bruce Miller United States	5	49 0.3×	101 0.7×	79 1.6×	13 0.3×	4 0.1×	7	410
Izabela Świetlicka Poland	14	99 0.6×	23 0.2×	7 0.1×	12 0.3×	6 0.1×	35	426
Ian Atkinson Canada	10	193 1.3×	40 0.3×	3 0.1×	19 0.4×	40 1.0×	17	416
Manon Mensink Netherlands	10	250 1.6×	23 0.2×	24 0.5×	6 0.1×	5 0.1×	21	476
Martina Landini Italy	9	189 1.2×	37 0.2×	10 0.2×	5 0.1×	35 0.9×	12	481
L. R. House India	12	289 1.9×	13 0.1×	5 0.1×	11 0.3×	29 0.7×	44	498
John Furst Australia	13	19 0.1×	15 0.1×	12 0.3×	10 0.2×	7 0.2×	19	387

Countries citing papers authored by Jan van Niekerk

Since Specialization

Citations

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

Fields of papers citing papers by Jan van Niekerk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jan van Niekerk

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

All Works

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14 of 14 papers shown

Stevens, Charles E., et al.. (2025). Fusarium Species Associated with Diseases of Citrus: A Comprehensive Review. Journal of Fungi. 11(4). 263–263.

Niekerk, Jan van, et al.. (2024). A review of the use of phosphonates in the management of Phytophthora nicotianae in citrus in South Africa. Phytoparasitica. 53(1). 3 indexed citations

Coetzee, Beatrix, et al.. (2023). Reference Genome Resource for the Citrus Pathogen Phytophthora citrophthora. PubMed. 12. 14–18. 2 indexed citations

Guarnaccia, Vladimiro, Jan van Niekerk, P.W. Crous, & Marcelo Sandoval‐Denis. (2021). Neocosmospora spp. associated with dry root rot of citrus in South Africa. Phytopathologia Mediterranea. 60(1). 79–100. 29 indexed citations

Niekerk, Jan van, et al.. (2018). Effect of Phosphonate Applications, for Phytophthora Brown Rot Control, on ‘Nadorcott’ Mandarin External Fruit Quality. HortTechnology. 28(4). 470–475. 2 indexed citations

Niekerk, Jan van. (2015). Factors Affecting the Selection of BIOX<sup>®</sup> as the Preferred Technology for the Treatment of a Refractory Gold Concentrate. Advanced materials research. 1130. 191–196. 4 indexed citations

Weng, Xuan, Jan van Niekerk, Suresh Neethirajan, & Keith Warriner. (2015). Characterization of antimicrobial efficacy of photocatalytic polymers against food-borne biofilms. LWT. 68. 1–7. 12 indexed citations

Niekerk, Jan van, et al.. (2014). Integration of Inference-Based Therapy and Cognitive-Behavioral Therapy for Obsessive-Compulsive Disorder—A Case Series. International Journal of Cognitive Therapy. 7(1). 67–82. 7 indexed citations

Niekerk, Jan van, F. Halleen, & Paul H. Fourie. (2011). Temporal susceptibility of grapevine pruning wounds to trunk pathogen infection in South African grapevines.. SHILAP Revista de lepidopterología. 38 indexed citations

10.

Niekerk, Jan van, et al.. (2011). Evaluation of biocontrol agents for grapevine pruning wound protection against trunk pathogen infection.. SHILAP Revista de lepidopterología. 74 indexed citations

11.

Niekerk, Jan van, et al.. (2011). Influence of water stress on Botryosphaeriaceae disease expression in grapevines. SHILAP Revista de lepidopterología. 24 indexed citations

12.

O’Connor, Kieron, et al.. (2009). An Inference-Based Approach to Treating Obsessive-Compulsive Disorders. Cognitive and Behavioral Practice. 16(4). 420–429. 40 indexed citations

13.

Niekerk, Jan van, et al.. (2006). Biooxidation of arsenopyrite concentrate using BIOX® process: Industrial experience in Tamboraque, Peru. Hydrometallurgy. 83(1-4). 90–96. 23 indexed citations

14.

Maas, Ad J.J., et al.. (2003). Clinical Results with the Acoustic Puncture Assist Device, a New Acoustic Device to Identify the Epidural Space. Anesthesia & Analgesia. 96(4). 1183–1187. 42 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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