Gerard J. Niemann

1.3k total citations
78 papers, 943 citations indexed

About

Gerard J. Niemann is a scholar working on Plant Science, Molecular Biology and Biochemistry. According to data from OpenAlex, Gerard J. Niemann has authored 78 papers receiving a total of 943 indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Plant Science, 39 papers in Molecular Biology and 20 papers in Biochemistry. Recurrent topics in Gerard J. Niemann's work include Phytochemistry and Biological Activities (20 papers), Phytochemicals and Antioxidant Activities (19 papers) and Plant biochemistry and biosynthesis (17 papers). Gerard J. Niemann is often cited by papers focused on Phytochemistry and Biological Activities (20 papers), Phytochemicals and Antioxidant Activities (19 papers) and Plant biochemistry and biosynthesis (17 papers). Gerard J. Niemann collaborates with scholars based in Netherlands, France and United States. Gerard J. Niemann's co-authors include Jaap J. Boon, R. P. Baayen, J. van Brederode, J. Pureveen, Gert B. Eijkel, Hans Lambers, Hendrik Poorter, W.M.A. Niessen, Margaret K. Seikel and Gerrit van Nigtevecht and has published in prestigious journals such as Oecologia, Journal of Chromatography A and Plant Cell & Environment.

In The Last Decade

Gerard J. Niemann

74 papers receiving 795 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Gerard J. Niemann Netherlands 18 568 389 150 138 100 78 943
F. A. Haskins United States 19 847 1.5× 423 1.1× 38 0.3× 55 0.4× 136 1.4× 136 1.4k
Henri R. Lerner Israel 23 1.4k 2.5× 550 1.4× 66 0.4× 62 0.4× 82 0.8× 47 1.7k
Rainer W. Scora United States 20 1.1k 2.0× 537 1.4× 275 1.8× 82 0.6× 265 2.6× 92 1.6k
Barbara Meurer‐Grimes United States 16 544 1.0× 431 1.1× 60 0.4× 67 0.5× 237 2.4× 33 1.1k
Christian Jay‐Allemand France 22 810 1.4× 715 1.8× 62 0.4× 126 0.9× 163 1.6× 48 1.4k
Silvano Scannerini Italy 19 861 1.5× 250 0.6× 148 1.0× 41 0.3× 197 2.0× 50 1.1k
Gianpaolo Bertazza Italy 18 746 1.3× 371 1.0× 61 0.4× 93 0.7× 48 0.5× 42 977
Philippe Lebreton France 14 364 0.6× 236 0.6× 40 0.3× 57 0.4× 159 1.6× 68 649
E. W. B. Ward Canada 26 1.4k 2.5× 647 1.7× 300 2.0× 39 0.3× 166 1.7× 91 1.8k
John T. Romeo United States 19 784 1.4× 338 0.9× 29 0.2× 30 0.2× 238 2.4× 51 1.2k

Countries citing papers authored by Gerard J. Niemann

Since Specialization
Citations

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

Fields of papers citing papers by Gerard J. Niemann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gerard J. Niemann. 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 Gerard J. Niemann. The network helps show where Gerard J. Niemann may publish in the future.

Co-authorship network of co-authors of Gerard J. Niemann

This figure shows the co-authorship network connecting the top 25 collaborators of Gerard J. Niemann. A scholar is included among the top collaborators of Gerard J. Niemann 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 Gerard J. Niemann. Gerard J. Niemann 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.
Niemann, Gerard J., et al.. (1997). The effect of enzymatic removal of proteins from plant leaf material as studied by pyrolysis-mass spectrometry: detection of additional protein marker fragment ions. Journal of Analytical and Applied Pyrolysis. 42(1). 33–51. 13 indexed citations
2.
Niemann, Gerard J., J. Pureveen, Gert B. Eijkel, Hendrik Poorter, & Jaap J. Boon. (1995). Differential chemical allocation and plant adaptation: A Py-MS Study of 24 species differing in relative growth rate. Plant and Soil. 175(2). 275–289. 21 indexed citations
3.
Niemann, Gerard J., et al.. (1994). PHENOLICS IN THE INTERACTION PSEUDOMONAS SP./ DIANTHUS CARYOPHYLLUS / FUSARIUM OXYSPORUM F.SP. DIANTHI. Acta Horticulturae. 572–575. 5 indexed citations
4.
Niemann, Gerard J., Gert B. Eijkel, Henk Konings, J. Pureveen, & Jaap J. Boon. (1993). Chemical differences between wildtype and gibberellin mutants of tomato determined by pyrolysis‐mass spectrometry. Plant Cell & Environment. 16(9). 1059–1069. 7 indexed citations
5.
Niemann, Gerard J., J. Pureveen, Gert B. Eijkel, Hendrik Poorter, & Jaap J. Boon. (1992). Differences in relative growth rate in 11 grasses correlate with differences in chemical composition as determined by pyrolysis mass spectrometry. Oecologia. 89(4). 567–573. 65 indexed citations
6.
Niemann, Gerard J., Jaap J. Boon, J. Pureveen, Gert B. Eijkel, & E. van der Heijden. (1991). A microanalytical approach to plant tissue characterization: A comparative study of healthy and fungus-infected carnation by pyrolysis-mass spectrometry. Journal of Analytical and Applied Pyrolysis. 19. 213–236. 16 indexed citations
7.
Niemann, Gerard J.. (1990). A carnation's defense against fungal invasion: a combined effort. 55. 1019–1028. 3 indexed citations
8.
Niemann, Gerard J., R. P. Baayen, & Jaap J. Boon. (1990). Differentiation Between Tissues from Carnation (Dianthus caryophyllus) Stems by Pyrolysis-Mass Spectrometry. Annals of Botany. 65(5). 461–472. 17 indexed citations
9.
10.
Niemann, Gerard J.. (1985). Biosynthesis of pentacyclic triterpenoids in leaves of Ilex aquifolium L.. Planta. 166(1). 51–56. 5 indexed citations
11.
Hogeweg, Pauline, et al.. (1984). Isozyme variation in Silene pratensis: a response to different environments. Biochemical Systematics and Ecology. 12(1). 29–36. 12 indexed citations
12.
Brederode, J. van, et al.. (1982). The geographic distribution of flavone-glycosylating genes in Silene pratensis (Rafn.) Godron and Gren. (Caryophyllaceae). Genetica. 59(2). 139–144. 17 indexed citations
13.
Brederode, J. van, et al.. (1981). Changes in Isoenzyme Patterns during the Ontogeny of Silene alba. Biochemie und Physiologie der Pflanzen. 176(6). 584–589. 10 indexed citations
14.
Niemann, Gerard J.. (1980). Phenolics from Larix needles. XVI. Inter- and intra-clonal variation in Larix leptolepis. Canadian Journal of Botany. 58(22). 2313–2317. 2 indexed citations
15.
Niemann, Gerard J.. (1979). SOME ASPECTS OF THE CHEMISTRY OF PINACEAE NEEDLES. Acta Botanica Neerlandica. 28(1). 73–88. 21 indexed citations
16.
Niemann, Gerard J. & J. van Brederode. (1978). Separation of glycoflavones and their glycosides by high-performance liquid chromatography. Journal of Chromatography A. 152(2). 523–527. 13 indexed citations
17.
Niemann, Gerard J.. (1975). PHENOLICS FROM LARIX NEEDLES. X. FLAVONOIDS OF L. GMELINII. Acta Botanica Neerlandica. 24(1). 65–68. 3 indexed citations
18.
Niemann, Gerard J.. (1972). PHENOLICS FROM LARIX NEEDLES IV. CONSTITUENTS OF L. LARICINA. Acta Botanica Neerlandica. 21(5). 549–552. 13 indexed citations
19.
Niemann, Gerard J.. (1971). PHENOLIC CONSTITUENTS FROM LARIX NEEDLES III: BENZOIC AND CINNAMIC ACIDS OF L. LEPTOLEPIS. Acta Botanica Neerlandica. 20(4). 397–400. 8 indexed citations
20.
Niemann, Gerard J., et al.. (1971). Flavonoid constituents from larix needles. Phytochemistry. 10(4). 893–893. 24 indexed citations

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