Gregory A. Armstrong

2.7k total citations
22 papers, 2.0k citations indexed

About

Gregory A. Armstrong is a scholar working on Molecular Biology, Plant Science and Biochemistry. According to data from OpenAlex, Gregory A. Armstrong has authored 22 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Molecular Biology, 11 papers in Plant Science and 7 papers in Biochemistry. Recurrent topics in Gregory A. Armstrong's work include Photosynthetic Processes and Mechanisms (20 papers), Light effects on plants (9 papers) and Antioxidant Activity and Oxidative Stress (7 papers). Gregory A. Armstrong is often cited by papers focused on Photosynthetic Processes and Mechanisms (20 papers), Light effects on plants (9 papers) and Antioxidant Activity and Oxidative Stress (7 papers). Gregory A. Armstrong collaborates with scholars based in Switzerland, United States and Germany. Gregory A. Armstrong's co-authors include John E. Hearst, Klaus Apel, Geneviève Frick, Ulrich Sperling, Barbara van Cleve, Marie Alberti, Francesca Leach, Qingxiang Su, Fabrice Franck and Joachim Wünn and has published in prestigious journals such as The Plant Cell, PLANT PHYSIOLOGY and The FASEB Journal.

In The Last Decade

Gregory A. Armstrong

21 papers receiving 1.9k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gregory A. Armstrong Switzerland	20	1.6k	868	445	442	110	22	2.0k
Jürgen Breitenbach Germany	23	1.6k 0.9×	526 0.6×	704 1.6×	878 2.0×	151 1.4×	43	2.1k
Steffen Reinbothe France	34	2.2k 1.3×	1.9k 2.1×	351 0.8×	110 0.2×	103 0.9×	78	2.9k
Simon P. Gough Denmark	30	2.5k 1.5×	1.2k 1.4×	354 0.8×	98 0.2×	117 1.1×	63	3.0k
Michael Gutensohn United States	23	1.7k 1.1×	1.0k 1.2×	135 0.3×	185 0.4×	129 1.2×	35	2.1k
Takanori Maruta Japan	29	2.1k 1.3×	2.3k 2.7×	243 0.5×	178 0.4×	60 0.5×	68	3.2k
Christiane Reinbothe France	34	2.5k 1.5×	2.1k 2.4×	412 0.9×	122 0.3×	202 1.8×	80	3.3k
Susanne Römer Germany	20	1.8k 1.1×	687 0.8×	321 0.7×	1.2k 2.8×	101 0.9×	32	2.3k
Robert M. Larkin China	29	2.9k 1.7×	2.5k 2.8×	317 0.7×	260 0.6×	68 0.6×	62	3.6k
Harald Stransky Germany	28	1.7k 1.0×	2.2k 2.6×	478 1.1×	161 0.4×	41 0.4×	39	3.2k
Francis X. Cunningham United States	29	3.4k 2.0×	642 0.7×	1.2k 2.7×	2.2k 4.9×	81 0.7×	45	4.0k

Countries citing papers authored by Gregory A. Armstrong

Since Specialization

Citations

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

Fields of papers citing papers by Gregory A. Armstrong

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregory A. Armstrong. 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 Gregory A. Armstrong. The network helps show where Gregory A. Armstrong may publish in the future.

Co-authorship network of co-authors of Gregory A. Armstrong

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

All Works

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20 of 20 papers shown

Paddock, Troy, et al.. (2012). Arabidopsis light-dependent protochlorophyllide oxidoreductase A (PORA) is essential for normal plant growth and development. Plant Molecular Biology. 78(4-5). 447–460. 44 indexed citations

Paddock, Troy, et al.. (2009). Arabidopsis protochlorophyllide oxidoreductase A (PORA) restores bulk chlorophyll synthesis and normal development to a porB porC double mutant. Plant Molecular Biology. 72(4-5). 445–457. 49 indexed citations

Frick, Geneviève, Qingxiang Su, Klaus Apel, & Gregory A. Armstrong. (2003). An Arabidopsis porB porC double mutant lacking light‐dependent NADPH:protochlorophyllide oxidoreductases B and C is highly chlorophyll‐deficient and developmentally arrested. The Plant Journal. 35(2). 141–153. 107 indexed citations

Su, Qingxiang, Geneviève Frick, Gregory A. Armstrong, & Klaus Apel. (2001). POR C of Arabidopsis thaliana: a third light- and NADPH-dependent protochlorophyllide oxidoreductase that is differentially regulated by light. Plant Molecular Biology. 47(6). 805–813. 94 indexed citations

Armstrong, Gregory A., et al.. (2000). Does a light-harvesting protochlorophyllide a/b-binding protein complex exist?. Trends in Plant Science. 5(1). 40–44. 39 indexed citations

Franck, Fabrice, Ulrich Sperling, Geneviève Frick, et al.. (2000). Regulation of Etioplast Pigment-Protein Complexes, Inner Membrane Architecture, and Protochlorophyllide a Chemical Heterogeneity by Light-Dependent NADPH:Protochlorophyllide Oxidoreductases A and B. PLANT PHYSIOLOGY. 124(4). 1678–1696. 70 indexed citations

Sperling, Ulrich, Fabrice Franck, Barbara van Cleve, et al.. (1998). Etioplast Differentiation in Arabidopsis: Both PORA and PORB Restore the Prolamellar Body and Photoactive Protochlorophyllide–F655 to the cop1 Photomorphogenic Mutant. The Plant Cell. 10(2). 283–296. 107 indexed citations

Sperling, Ulrich, Fabrice Franck, Barbara van Cleve, et al.. (1998). Etioplast Differentiation in Arabidopsis: Both PORA and PORB Restore the Prolamellar Body and Photoactive Protochlorophyllide-F655 to the cop1 Photomorphogenic Mutant. The Plant Cell. 10(2). 283–283. 20 indexed citations

Burkhardt, P. K., Peter Beyer, Joachim Wünn, et al.. (1997). Transgenic rice (Oryza sativa) endosperm expressing daffodil (Narcissus pseudonarcissus) phytoene synthase accumulates phytoene, a key intermediate of provitamin A biosynthesis. The Plant Journal. 11(5). 1071–1078. 232 indexed citations

10.

Sperling, Ulrich, Barbara van Cleve, Geneviève Frick, Klaus Apel, & Gregory A. Armstrong. (1997). Overexpression of light‐dependent PORA or PORB in plants depleted of endogenous POR by far‐red light enhances seedling survival in white light and protects against photooxidative damage. The Plant Journal. 12(3). 649–658. 107 indexed citations

11.

Armstrong, Gregory A.. (1997). GENETICS OF EUBACTERIAL CAROTENOID BIOSYNTHESIS: A Colorful Tale. Annual Review of Microbiology. 51(1). 629–659. 173 indexed citations

12.

Sperling, Ulrich, et al.. (1996). Distinct roles for light‐dependent NADPH:protochlorophyllide oxidoreductases (POR) A and B during greening in higher plants. The Plant Journal. 9(4). 513–523. 83 indexed citations

13.

Armstrong, Gregory A. & John E. Hearst. (1996). Genetics and molecular biology of carotenoid pigment biosynthesis. The FASEB Journal. 10(2). 228–237. 237 indexed citations

14.

Cleve, Barbara van, et al.. (1995). Isolation and classification of chlorophyll-deficient xantha mutants of Arabidopsis thaliana. Planta. 197(3). 490–500. 53 indexed citations

15.

Lebedev, Nikolai, Barbara van Cleve, Gregory A. Armstrong, & Klaus Apel. (1995). Chlorophyll Synthesis in a Deetiolated (det340) Mutant of Arabidopsis without NADPH-Protochlorophyllide (PChlide) Oxidoreductase (POR) A and Photoactive PChlide-F655. The Plant Cell. 7(12). 2081–2081. 21 indexed citations

16.

Armstrong, Gregory A., Bhupinder S. Hundle, & John E. Hearst. (1993). [26] Evolutionary conservation and structural similarities of carotenoid biosynthesis gene products from photosynthetic and nonphotosynthetic organisms. Methods in enzymology on CD-ROM/Methods in enzymology. 214. 297–311. 24 indexed citations

17.

Armstrong, Gregory A., Bernd Weißhaar, & Klaus Hahlbrock. (1992). Homodimeric and Heterodimeric Leucine Zipper Proteins and Nuclear Factors from Parsley Recognize Diverse Promoter Elements with ACGT Cores. The Plant Cell. 4(5). 525–525. 9 indexed citations

18.

Armstrong, Gregory A., et al.. (1990). Programmable Memory Trends in the Automotive Industry. SAE technical papers on CD-ROM/SAE technical paper series. 1. 1 indexed citations

19.

Schmidt, Arno, Gerhard Sandmann, Gregory A. Armstrong, John E. Hearst, & Peter Böger. (1989). Immunological detection of phytoene desaturase in algae and higher plants using an antiserum raised against a bacterial fusion‐gene construct. European Journal of Biochemistry. 184(2). 375–378. 20 indexed citations

20.

Armstrong, Gregory A., Marie Alberti, Francesca Leach, & John E. Hearst. (1989). Nucleotide sequence, organization, and nature of the protein products of the carotenoid biosynthesis gene cluster of Rhodobacter capsulatus. Molecular and General Genetics MGG. 216(2-3). 254–268. 288 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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