R. Premakumar

2.2k total citations
38 papers, 1.7k citations indexed

About

R. Premakumar is a scholar working on Renewable Energy, Sustainability and the Environment, Molecular Biology and Nutrition and Dietetics. According to data from OpenAlex, R. Premakumar has authored 38 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Renewable Energy, Sustainability and the Environment, 10 papers in Molecular Biology and 10 papers in Nutrition and Dietetics. Recurrent topics in R. Premakumar's work include Metalloenzymes and iron-sulfur proteins (13 papers), Wastewater Treatment and Nitrogen Removal (8 papers) and Trace Elements in Health (6 papers). R. Premakumar is often cited by papers focused on Metalloenzymes and iron-sulfur proteins (13 papers), Wastewater Treatment and Nitrogen Removal (8 papers) and Trace Elements in Health (6 papers). R. Premakumar collaborates with scholars based in United States, Canada and Mexico. R. Premakumar's co-authors include Paul E. Bishop, K.V. Rajagopalan, Dennis R. Winge, John R. Chisnell, Marty R. Jacobson, David P. Livingston, George J. Sorger, Rolf D. Joerger, Shyam Tallury and Eliot M. Herman and has published in prestigious journals such as Science, PLANT PHYSIOLOGY and Biochemical Journal.

In The Last Decade

R. Premakumar

38 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Premakumar United States 20 575 550 462 436 418 38 1.7k
Clive S. Butler United Kingdom 26 356 0.6× 769 1.4× 187 0.4× 545 1.3× 365 0.9× 58 2.2k
Diethelm Kleiner Germany 28 316 0.5× 111 0.2× 707 1.5× 862 2.0× 114 0.3× 84 2.4k
Swati Rawat United States 18 163 0.3× 145 0.3× 387 0.8× 396 0.9× 142 0.3× 34 1.7k
C. Dijkema Netherlands 29 182 0.3× 250 0.5× 386 0.8× 1.5k 3.5× 121 0.3× 62 2.9k
David J. Richardson United Kingdom 26 270 0.5× 55 0.1× 277 0.6× 652 1.5× 153 0.4× 52 1.9k
Yves Jouanneau France 31 667 1.2× 28 0.1× 228 0.5× 1.1k 2.6× 311 0.7× 66 2.4k
William A. Bulen United States 17 554 1.0× 75 0.1× 375 0.8× 492 1.1× 40 0.1× 24 1.5k
Nelly Kervarec France 27 869 1.5× 254 0.5× 343 0.7× 409 0.9× 49 0.1× 63 2.6k
A. Paneque Spain 21 477 0.8× 43 0.1× 400 0.9× 572 1.3× 55 0.1× 56 1.3k

Countries citing papers authored by R. Premakumar

Since Specialization
Citations

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

Fields of papers citing papers by R. Premakumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Premakumar

This figure shows the co-authorship network connecting the top 25 collaborators of R. Premakumar. A scholar is included among the top collaborators of R. Premakumar 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 R. Premakumar. R. Premakumar 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.
Hincha, Dirk K., David P. Livingston, R. Premakumar, et al.. (2007). Fructans from oat and rye: Composition and effects on membrane stability during drying. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1768(6). 1611–1619. 74 indexed citations
2.
Livingston, David P., et al.. (2007). Using Arabidopsis thaliana as a model to study subzero acclimation in small grains. Cryobiology. 54(2). 154–163. 19 indexed citations
3.
Herman, Eliot M., et al.. (2007). Additional freeze hardiness in wheat acquired by exposure to -3  C is associated with extensive physiological, morphological, and molecular changes. Journal of Experimental Botany. 58(6). 1557–1557. 11 indexed citations
4.
Herman, Eliot M., et al.. (2006). Additional freeze hardiness in wheat acquired by exposure to −3 °C is associated with extensive physiological, morphological, and molecular changes. Journal of Experimental Botany. 57(14). 3601–3618. 105 indexed citations
5.
Livingston, David P., R. Premakumar, & Shyam Tallury. (2005). Carbohydrate Concentrations in Crown Fractions from Winter Oat during Hardening at Sub-zero Temperatures. Annals of Botany. 96(2). 331–335. 11 indexed citations
6.
Livingston, David P., R. Premakumar, & Shyam Tallury. (2005). Carbohydrate partitioning between upper and lower regions of the crown in oat and rye during cold acclimation and freezing. Cryobiology. 52(2). 200–208. 47 indexed citations
7.
Brooks, W. S., Carl A. Griffey, Andrew Price, et al.. (2005). Registration of ‘Price’ Barley. Crop Science. 45(2). 791–792. 6 indexed citations
8.
Brooks, W. S., Carl A. Griffey, Andrew Price, et al.. (2005). Registration of ‘Doyce’ Hulless Barley. Crop Science. 45(2). 792–793. 5 indexed citations
9.
Premakumar, R., et al.. (1998). Regulation of the transcriptional activators AnfA and VnfA by metals and ammonium inAzotobacter vinelandii. FEMS Microbiology Letters. 164(1). 63–68. 19 indexed citations
10.
Premakumar, R., Susanne Jacobitz, S. C. Ricke, & Paul E. Bishop. (1996). Phenotypic characterization of a tungsten-tolerant mutant of Azotobacter vinelandii. Journal of Bacteriology. 178(3). 691–696. 24 indexed citations
11.
Premakumar, R., Marty R. Jacobson, Telisa Loveless, & Paul E. Bishop. (1992). Characterization of transcripts expressed from nitrogenase-3 structural genes of Azotobacter vinelandii. Canadian Journal of Microbiology. 38(9). 929–936. 13 indexed citations
12.
Chisnell, John R., R. Premakumar, & Paul E. Bishop. (1988). Purification of a second alternative nitrogenase from a nifHDK deletion strain of Azotobacter vinelandii. Journal of Bacteriology. 170(1). 27–33. 202 indexed citations
13.
Bishop, Paul E., R. Premakumar, Dennis R. Dean, et al.. (1986). Nitrogen Fixation by Azotobacter vinelandii Strains Having Deletions in Structural Genes for Nitrogenase. Science. 232(4746). 92–94. 104 indexed citations
14.
Joerger, Rolf D., R. Premakumar, & Paul E. Bishop. (1986). Tn5-induced mutants of Azotobacter vinelandii affected in nitrogen fixation under Mo-deficient and Mo-sufficient conditions. Journal of Bacteriology. 168(2). 673–682. 44 indexed citations
15.
Hershfield, M S, et al.. (1985). S-Adenosylhomocysteine hydrolase from human placenta. Affinity purification and characterization. Biochemical Journal. 230(1). 43–52. 48 indexed citations
16.
Premakumar, R., Eliana Gertrudes de Macedo Lemos, & Paul E. Bishop. (1984). Evidence for two dinitrogenase reductases under regulatory control by molybdenum in Azotobacter vinelandii☆. Biochimica et Biophysica Acta (BBA) - General Subjects. 797(1). 64–70. 22 indexed citations
17.
Sorger, George J., et al.. (1978). Demonstration in vitro of two intracellular inactivators of nitrate reductase from Neurospora. Biochimica et Biophysica Acta (BBA) - General Subjects. 540(1). 33–47. 17 indexed citations
18.
Rajagopalan, K.V., Dennis R. Winge, & R. Premakumar. (1976). Chemistry and Biology of Copper-Chelatin. Advances in experimental medicine and biology. 74. 565–574. 2 indexed citations
19.
Winge, Dennis R., et al.. (1975). Copper-chelatin: Purification and properties of a copper-binding protein from rat liver. Archives of Biochemistry and Biophysics. 170(1). 253–266. 99 indexed citations
20.
Premakumar, R., et al.. (1975). Copper-induced synthesis of copper-chelatin in rat liver. Archives of Biochemistry and Biophysics. 170(1). 267–277. 38 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Clive S. Butler Breakdown of academic impact, for papers by Diethelm Kleiner Breakdown of academic impact, for papers by Swati Rawat Breakdown of academic impact, for papers by C. Dijkema Breakdown of academic impact, for papers by David J. Richardson Breakdown of academic impact, for papers by Yves Jouanneau Breakdown of academic impact, for papers by William A. Bulen Breakdown of academic impact, for papers by Nelly Kervarec Breakdown of academic impact, for papers by A. Paneque
Rankless by CCL
2026