Christa Werner

973 total citations
35 papers, 756 citations indexed

About

Christa Werner is a scholar working on Molecular Biology, Organic Chemistry and Plant Science. According to data from OpenAlex, Christa Werner has authored 35 papers receiving a total of 756 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Molecular Biology, 12 papers in Organic Chemistry and 12 papers in Plant Science. Recurrent topics in Christa Werner's work include Polyamine Metabolism and Applications (14 papers), Chemical synthesis and alkaloids (10 papers) and Plant tissue culture and regeneration (10 papers). Christa Werner is often cited by papers focused on Polyamine Metabolism and Applications (14 papers), Chemical synthesis and alkaloids (10 papers) and Plant tissue culture and regeneration (10 papers). Christa Werner collaborates with scholars based in Switzerland, France and United Kingdom. Christa Werner's co-authors include Manfred Hesse, Konstantin Drandarov, Laurent Bigler, Philippe Matile, Katia F. Rodrigues, Nikolay Youhnovski, Belkıs Gözler, Nehir Ünver Somer, Armin Guggisberg and Hans R. Hohl and has published in prestigious journals such as Applied and Environmental Microbiology, Journal of Chromatography A and Phytochemistry.

In The Last Decade

Christa Werner

34 papers receiving 717 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Christa Werner Switzerland 16 355 324 169 151 90 35 756
Yoshinori Shiobara Japan 19 274 0.8× 456 1.4× 257 1.5× 190 1.3× 123 1.4× 45 944
Albert Kollmann France 20 527 1.5× 344 1.1× 96 0.6× 196 1.3× 53 0.6× 47 971
Veronika Hellwig Germany 17 263 0.7× 221 0.7× 215 1.3× 388 2.6× 80 0.9× 32 843
Vijaya Kumar Sri Lanka 18 412 1.2× 431 1.3× 190 1.1× 100 0.7× 38 0.4× 54 922
José S. Calderón Mexico 19 405 1.1× 522 1.6× 123 0.7× 64 0.4× 49 0.5× 63 970
M. Bittner Chile 18 321 0.9× 358 1.1× 97 0.6× 66 0.4× 55 0.6× 53 796
Yukiko Takenaka Japan 20 485 1.4× 293 0.9× 97 0.6× 240 1.6× 222 2.5× 47 805
Ziling Mao China 16 235 0.7× 190 0.6× 135 0.8× 370 2.5× 71 0.8× 29 711
James E. Robbers United States 14 266 0.7× 193 0.6× 134 0.8× 144 1.0× 188 2.1× 28 742
Jerôme D. Msonthi Malawi 23 829 2.3× 542 1.7× 109 0.6× 140 0.9× 97 1.1× 58 1.3k

Countries citing papers authored by Christa Werner

Since Specialization
Citations

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

Fields of papers citing papers by Christa Werner

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Christa Werner

This figure shows the co-authorship network connecting the top 25 collaborators of Christa Werner. A scholar is included among the top collaborators of Christa Werner 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 Christa Werner. Christa Werner 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.
2.
Somer, Nehir Ünver, Gülen İrem Kaya, Christa Werner, Robert Verpoorte, & Belkıs Gözler. (2003). Galanthindole: A New Indole Alkaloid fromGalanthus plicatusssp.byzantinus. Planta Medica. 69(9). 869–871. 28 indexed citations
3.
Bienz, Stefan, et al.. (2003). Putrescine, Spermidine, Spermine, and Related Polyamine Alkaloids. ChemInform. 34(30). 2 indexed citations
4.
Bienz, Stefan, et al.. (2002). Putrescine, spermidine, spermine, and related polyamine alkaloids. PubMed. 58. 83–338. 42 indexed citations
5.
Drandarov, Konstantin, et al.. (2002). Biotransformation of 2-Benzoxazolinone and 2-Hydroxy-1,4-Benzoxazin-3-one by Endophytic Fungi Isolated from Aphelandra tetragona. Applied and Environmental Microbiology. 68(10). 4863–4870. 104 indexed citations
6.
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8.
Youhnovski, Nikolay, Christa Werner, & Manfred Hesse. (2001). N,N′,N″-Triferuloylspermidine, a New UV Absorbing Polyamine Derivative from Pollen of Hippeastrum × hortorum. Zeitschrift für Naturforschung C. 56(7-8). 526–530. 11 indexed citations
9.
Drandarov, Konstantin, et al.. (2001). Biogenesis and function of macrocyclic spermine alkaloids. ARKIVOC. 2001(8). 154–164. 5 indexed citations
10.
11.
Rodrigues, Katia F., Manfred Hesse, & Christa Werner. (2000). Antimicrobial activities of secondary metabolites produced by endophytic fungi fromSpondias mombin. Journal of Basic Microbiology. 40(4). 261–267. 65 indexed citations
12.
Hesse, Manfred, et al.. (2000). Benzoxazinoids–cyclic hydroxamic acids, lactams and their corresponding glucosides in the genus Aphelandra (Acanthaceae). Phytochemistry. 53(2). 213–222. 66 indexed citations
13.
Rodrigues, Katia F., Manfred Hesse, & Christa Werner. (2000). Antimicrobial activities of secondary metabolites produced by endophytic fungi from Spondias mombin. Journal of Basic Microbiology. 40(4). 261–267. 10 indexed citations
14.
Youhnovski, Nikolay, et al.. (1999). Two macrocyclic spermine alkaloids from Aphelandra fuscopunctata (Acanthaceae). Phytochemistry. 52(8). 1717–1723. 10 indexed citations
15.
Youhnovski, Nikolay, Laurent Bigler, Christa Werner, & Manfred Hesse. (1998). On-Line Coupling of High-Performance Liquid Chromatography to Atmospheric Pressure Chemical Ionization Mass Spectrometry (HPLC/APCI-MS and MS/MS). The Pollen Analysis ofHippeastrum x hortorum (Amaryllidaceae). Helvetica Chimica Acta. 81(9). 1654–1671. 20 indexed citations
16.
Hesse, Manfred, et al.. (1996). Spermine and spermidine hydroxycinnamoyl transferases in Aphelandra tetragona. Plant Science. 113(2). 149–156. 26 indexed citations
17.
Todorova, Milka, Christa Werner, & Manfred Hesse. (1994). Enzymatic phenol oxidation and polymerization of the spermine alkaloid aphelandrine. Phytochemistry. 37(5). 1251–1256. 15 indexed citations
18.
Werner, Christa, et al.. (1993). Accumulation and metabolism of the spermine alkaloid aphelandrine in roots of Aphelandra tetragona. Phytochemistry. 33(5). 1033–1036. 17 indexed citations
19.
Werner, Christa, et al.. (1988). Interactions between agarose-embedded plant protoplasts and germ tubes of Phytophthora. Physiological and Molecular Plant Pathology. 33(2). 209–220. 11 indexed citations
20.
Werner, Christa & Philippe Matile. (1985). Accumulation of Coumarylglucosides in Vacuoles of Barley Mesophyll Protoplasts. Journal of Plant Physiology. 118(3). 237–249. 54 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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