Ambrose Okem

640 total citations
19 papers, 472 citations indexed

About

Ambrose Okem is a scholar working on Plant Science, Molecular Biology and Analytical Chemistry. According to data from OpenAlex, Ambrose Okem has authored 19 papers receiving a total of 472 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Plant Science, 5 papers in Molecular Biology and 4 papers in Analytical Chemistry. Recurrent topics in Ambrose Okem's work include Ethnobotanical and Medicinal Plants Studies (4 papers), Heavy Metals in Plants (4 papers) and Plant Stress Responses and Tolerance (3 papers). Ambrose Okem is often cited by papers focused on Ethnobotanical and Medicinal Plants Studies (4 papers), Heavy Metals in Plants (4 papers) and Plant Stress Responses and Tolerance (3 papers). Ambrose Okem collaborates with scholars based in South Africa, Netherlands and United States. Ambrose Okem's co-authors include J. Van Staden, Wendy A. Stirk, J.F. Finnie, A.R. Ndhlala, C. Southway, Bhekumthetho Ncube, Renée Street, R.B. Mulaudzi, Adeyemi O. Aremu and Vince Ördög and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Ethnopharmacology and Food and Chemical Toxicology.

In The Last Decade

Ambrose Okem

18 papers receiving 459 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ambrose Okem South Africa 12 239 95 79 73 64 19 472
Mengxia Yan China 16 422 1.8× 127 1.3× 60 0.8× 28 0.4× 43 0.7× 25 780
Bassem A. Sabry Egypt 14 176 0.7× 60 0.6× 20 0.3× 62 0.8× 67 1.0× 24 494
Liuquan Zhang China 13 136 0.6× 221 2.3× 35 0.4× 41 0.6× 39 0.6× 20 639
Eliza Malinowska Poland 12 306 1.3× 108 1.1× 17 0.2× 43 0.6× 29 0.5× 22 605
JI Yu-bin China 14 158 0.7× 204 2.1× 24 0.3× 16 0.2× 40 0.6× 77 608
Xiumei Sun China 12 112 0.5× 151 1.6× 111 1.4× 62 0.8× 44 0.7× 25 459
Umesh Pravin Dhuldhaj India 7 184 0.8× 84 0.9× 30 0.4× 14 0.2× 59 0.9× 18 426
Elisângela Düsman Brazil 13 162 0.7× 98 1.0× 16 0.2× 25 0.3× 77 1.2× 72 501
Bassem Khemakhem Tunisia 19 392 1.6× 227 2.4× 24 0.3× 28 0.4× 53 0.8× 48 820
L. D. Kapoor India 7 309 1.3× 171 1.8× 29 0.4× 20 0.3× 21 0.3× 27 581

Countries citing papers authored by Ambrose Okem

Since Specialization
Citations

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

Fields of papers citing papers by Ambrose Okem

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ambrose Okem

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

All Works

19 of 19 papers shown
1.
Welling, Mick M., Honest Ndlovu, Sipho Mdanda, et al.. (2024). Insights into Peptidoglycan-Targeting Radiotracers for Imaging Bacterial Infections: Updates, Challenges, and Future Perspectives. ACS Infectious Diseases. 10(2). 270–286. 4 indexed citations
2.
Okem, Ambrose, Wendy A. Stirk, J.F. Finnie, & J. Van Staden. (2024). Stress-related physiological responses and ultrastructural changes in Hypoxis hemerocallidea leaves exposed to cadmium and aluminium. Plant Growth Regulation. 103(3). 721–732. 1 indexed citations
3.
Okem, Ambrose, et al.. (2022). A review of the pharmacodynamic effect of chemo-herbal drug combinations therapy for cancer treatment. SHILAP Revista de lepidopterología. 17. 100147–100147. 33 indexed citations
4.
Vignaux, Guillaume, Nan Gao, Aurélia Vergeade, et al.. (2020). Antibody-Based Immunotherapy: Alternative Approaches for the Treatment of Metastatic Melanoma. Biomedicines. 8(9). 327–327. 15 indexed citations
5.
Kumar, Vijay, Ambrose Okem, Mack Moyo, et al.. (2019). Effect of zinc on the production of phenolic acids and hypoxoside in micropropagated Hypoxis hemerocallidea. Plant Growth Regulation. 89(1). 19–24. 12 indexed citations
6.
Okem, Ambrose, et al.. (2017). Micropropagation and secondary metabolites in Agathosma betulina (Berg.). South African Journal of Botany. 111. 283–290. 7 indexed citations
7.
Kambizi, Learnmore, et al.. (2017). THERAPEUTIC POTENTIAL OF GNIDIA CAPITATA L. F.: INVESTIGATIONS ON ITS ANTITYROSINASE, ANTIBACTERIAL, ANTIOXIDANT AND ANTICANCER ACTIVITIES. African Journal of Traditional Complementary and Alternative Medicines. 14(5). 1–7.
8.
Ndakidemi, Patrick A., et al.. (2016). Effects of Drip Irrigation on Growth, Physiological Parameters, and Yield in Hydroponically Cultivated Cucumis sativus. HortScience. 51(11). 1412–1416. 1 indexed citations
9.
Okem, Ambrose, Mack Moyo, Wendy A. Stirk, J.F. Finnie, & J. Van Staden. (2016). Investigating the effect of cadmium and aluminium on growth and stress‐induced responses in the micropropagated medicinal plant Hypoxis hemerocallidea. Plant Biology. 18(5). 805–815. 12 indexed citations
10.
Ördög, Vince, Wendy A. Stirk, Péter Bálint, et al.. (2016). Effect of temperature and nitrogen concentration on lipid productivity and fatty acid composition in three Chlorella strains. Algal Research. 16. 141–149. 81 indexed citations
11.
Arthur, Georgina D., Adeyemi O. Aremu, Manoj G. Kulkarni, et al.. (2015). Can the use of natural biostimulants be a potential means of phytoremediating contaminated soils from goldmines in South Africa?. International Journal of Phytoremediation. 18(5). 427–434. 11 indexed citations
12.
Okem, Ambrose, Wendy A. Stirk, Renée Street, et al.. (2015). Effects of Cd and Al stress on secondary metabolites, antioxidant and antibacterial activity of Hypoxis hemerocallidea Fisch. & C.A. Mey. Plant Physiology and Biochemistry. 97. 147–155. 46 indexed citations
13.
Okem, Ambrose, Manoj G. Kulkarni, & J. Van Staden. (2015). Enhancing Phytoremediation Potential ofPennisetum clandestinumHochst in Cadmium-Contaminated Soil Using Smoke-Water and Smoke-Isolated Karrikinolide. International Journal of Phytoremediation. 17(11). 1046–1052. 11 indexed citations
14.
Okem, Ambrose, C. Southway, Wendy A. Stirk, et al.. (2015). Effect of cadmium and aluminum on growth, metabolite content and biological activity in Drimia elata (Jacq.) Hyacinthaceae. South African Journal of Botany. 98. 142–147. 26 indexed citations
15.
Okem, Ambrose, C. Southway, Wendy A. Stirk, et al.. (2014). Heavy metal contamination in South African medicinal plants: A cause for concern. South African Journal of Botany. 93. 125–130. 51 indexed citations
16.
Ncube, Bhekumthetho, A.R. Ndhlala, Ambrose Okem, & J. Van Staden. (2013). Hypoxis (Hypoxidaceae) in African traditional medicine. Journal of Ethnopharmacology. 150(3). 818–827. 36 indexed citations
17.
Ndhlala, A.R., Bhekumthetho Ncube, Ambrose Okem, R.B. Mulaudzi, & J. Van Staden. (2013). Toxicology of some important medicinal plants in southern Africa. Food and Chemical Toxicology. 62. 609–621. 72 indexed citations
18.
Okem, Ambrose, C. Southway, A.R. Ndhlala, & J. Van Staden. (2012). Determination of total and bioavailable heavy and trace metals in South African commercial herbal concoctions using ICP-OES. South African Journal of Botany. 82. 75–82. 24 indexed citations
19.
Okem, Ambrose, J.F. Finnie, & J. Van Staden. (2011). Pharmacological, genotoxic and phytochemical properties of selected South African medicinal plants used in treating stomach-related ailments. Journal of Ethnopharmacology. 139(3). 712–720. 29 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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