Ursula Hettwer

729 total citations
9 papers, 549 citations indexed

About

Ursula Hettwer is a scholar working on Plant Science, Cell Biology and Biotechnology. According to data from OpenAlex, Ursula Hettwer has authored 9 papers receiving a total of 549 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Plant Science, 4 papers in Cell Biology and 2 papers in Biotechnology. Recurrent topics in Ursula Hettwer's work include Plant Pathogens and Fungal Diseases (4 papers), Mycotoxins in Agriculture and Food (4 papers) and Plant Micronutrient Interactions and Effects (2 papers). Ursula Hettwer is often cited by papers focused on Plant Pathogens and Fungal Diseases (4 papers), Mycotoxins in Agriculture and Food (4 papers) and Plant Micronutrient Interactions and Effects (2 papers). Ursula Hettwer collaborates with scholars based in Germany, Nigeria and Iran. Ursula Hettwer's co-authors include Petr Karlovský, T. O. Adejumo, K. Rudolph, Rayko Becher, H. B. Deising, Stefan G. R. Wirsel, Norbert Claassen, Reza Khorassani, Bernd Steingrobe and Jens Boch and has published in prestigious journals such as Applied and Environmental Microbiology, Journal of Bacteriology and Molecular Microbiology.

In The Last Decade

Ursula Hettwer

9 papers receiving 518 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ursula Hettwer Germany	7	400	161	117	86	69	9	549
J. Domenech Spain	15	546 1.4×	89 0.6×	32 0.3×	53 0.6×	206 3.0×	23	615
Raman Selvakumar India	10	378 0.9×	64 0.4×	20 0.2×	51 0.6×	109 1.6×	35	515
Kerstin Hell Benin	13	565 1.4×	123 0.8×	27 0.2×	31 0.4×	92 1.3×	25	663
Octave J Francis United States	9	235 0.6×	41 0.3×	59 0.5×	29 0.3×	54 0.8×	21	402
Sobiya Shafique Pakistan	14	362 0.9×	67 0.4×	34 0.3×	59 0.7×	98 1.4×	60	480
Shazia Shafique Pakistan	14	370 0.9×	67 0.4×	36 0.3×	61 0.7×	104 1.5×	60	495
Myrna Sabino Brazil	15	668 1.7×	112 0.7×	41 0.4×	105 1.2×	61 0.9×	46	832
Franck Paris France	4	313 0.8×	51 0.3×	30 0.3×	18 0.2×	106 1.5×	4	446
Marie-Noëlle Brisset France	14	638 1.6×	209 1.3×	14 0.1×	26 0.3×	180 2.6×	27	777
G. Venkateswaran India	14	414 1.0×	55 0.3×	65 0.6×	63 0.7×	153 2.2×	25	579

Countries citing papers authored by Ursula Hettwer

Since Specialization

Citations

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

Fields of papers citing papers by Ursula Hettwer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ursula Hettwer

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

All Works

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9 of 9 papers shown

Khorassani, Reza, et al.. (2011). Citramalic acid and salicylic acid in sugar beet root exudates solubilize soil phosphorus. BMC Plant Biology. 11(1). 121–121. 89 indexed citations

Becher, Rayko, Ursula Hettwer, Petr Karlovský, H. B. Deising, & Stefan G. R. Wirsel. (2010). Adaptation of Fusarium graminearum to Tebuconazole Yielded Descendants Diverging for Levels of Fitness, Fungicide Resistance, Virulence, and Mycotoxin Production. Phytopathology. 100(5). 444–453. 119 indexed citations

Adejumo, T. O., et al.. (2009). Real-Time PCR and Agar Plating Method to Predict Fusarium Verticillioides and Fumonisin B1 Content in Nigerian Maize. Journal of Plant Protection Research. 49(4). 6 indexed citations

Mayser, Peter, Ursula Hettwer, Peter Spiteller, et al.. (2008). The tryptophan aminotransferase Tam1 catalyses the single biosynthetic step for tryptophan‐dependent pigment synthesis in Ustilago maydis. Molecular Microbiology. 68(1). 152–172. 45 indexed citations

Adejumo, T. O., Ursula Hettwer, & Petr Karlovský. (2007). Survey of maize from south-western Nigeria for zearalenone,α- andβ-zearalenols, fumonisin B₁and enniatins produced byFusariumspecies. Food Additives & Contaminants. 24(9). 993–1000. 60 indexed citations

Adejumo, T. O., Ursula Hettwer, & Petr Karlovský. (2007). Occurrence of Fusarium species and trichothecenes in Nigerian maize. International Journal of Food Microbiology. 116(3). 350–357. 85 indexed citations

Hettwer, Ursula, et al.. (1998). Cloning, Nucleotide Sequence, and Expression in Escherichia coli of Levansucrase Genes from the Plant Pathogens Pseudomonas syringae pv. glycinea and P. syringae pv. phaseolicola. Applied and Environmental Microbiology. 64(9). 3180–3187. 38 indexed citations

Hettwer, Ursula, et al.. (1995). Purification and characterization of an extracellular levansucrase from Pseudomonas syringae pv. phaseolicola. Journal of Bacteriology. 177(10). 2834–2839. 106 indexed citations

Haas, Alois, et al.. (1988). Heterocyclic compounds of nitrogen. Springer eBooks. 1 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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