C. Ullrich

3.1k total citations · 1 hit paper
65 papers, 2.3k citations indexed

About

C. Ullrich is a scholar working on Plant Science, Molecular Biology and Cell Biology. According to data from OpenAlex, C. Ullrich has authored 65 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Plant Science, 28 papers in Molecular Biology and 11 papers in Cell Biology. Recurrent topics in C. Ullrich's work include Plant tissue culture and regeneration (14 papers), Plant Pathogenic Bacteria Studies (12 papers) and Plant-Microbe Interactions and Immunity (11 papers). C. Ullrich is often cited by papers focused on Plant tissue culture and regeneration (14 papers), Plant Pathogenic Bacteria Studies (12 papers) and Plant-Microbe Interactions and Immunity (11 papers). C. Ullrich collaborates with scholars based in Germany, Israel and Spain. C. Ullrich's co-authors include Roni Aloni, Markus Langhans, Etay Aloni, Anton Novacký, Amparo Sanz, J. Guern, Rebecca Wächter, Wolfram Hartung, Regina Kleespies and W. Zeller and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLANT PHYSIOLOGY and Journal of Experimental Botany.

In The Last Decade

C. Ullrich

60 papers receiving 2.1k citations

Hit Papers

Role of Cytokinin and Auxin in Shaping Root Architecture:... 2006 2026 2012 2019 2006 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Role of Cytokinin and Auxin in Shaping Root Architecture: Regulating Vascular Differentiation, Lateral Root Initiation, Root Apical Dominance and Root Gravitropism
    2006 505 citations Roni Aloni, Etay Aloni et al. Annals of Botany profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
C. Ullrich Germany 23 2.0k 1.1k 123 93 61 65 2.3k
Christopher D. Todd Canada 26 1.8k 0.9× 853 0.7× 72 0.6× 57 0.6× 42 0.7× 50 2.2k
Anna Rita Paolacci Italy 24 1.4k 0.7× 723 0.6× 78 0.6× 133 1.4× 79 1.3× 51 1.8k
Jelli Venkatesh South Korea 24 2.3k 1.2× 1.1k 0.9× 106 0.9× 88 0.9× 79 1.3× 52 2.7k
Iwona Szarejko Poland 33 3.3k 1.7× 1.4k 1.3× 184 1.5× 63 0.7× 54 0.9× 94 3.7k
Rohit Joshi India 26 2.3k 1.2× 1.1k 0.9× 90 0.7× 68 0.7× 41 0.7× 89 2.7k
Sholpan Davletova United States 8 2.8k 1.4× 1.7k 1.5× 95 0.8× 67 0.7× 76 1.2× 9 3.2k
Klára Kosová Czechia 25 2.2k 1.1× 1.0k 0.9× 96 0.8× 61 0.7× 79 1.3× 48 2.6k
Hayat El‐Maarouf‐Bouteau France 22 3.2k 1.6× 1.1k 1.0× 130 1.1× 95 1.0× 34 0.6× 37 3.5k
Alena Gaudinová Czechia 25 2.0k 1.0× 960 0.8× 119 1.0× 44 0.5× 44 0.7× 58 2.2k
Ilja Tom Prášil Czechia 31 2.8k 1.4× 1.3k 1.1× 134 1.1× 38 0.4× 77 1.3× 64 3.3k

Countries citing papers authored by C. Ullrich

Since Specialization
Citations

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

Fields of papers citing papers by C. Ullrich

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. Ullrich

This figure shows the co-authorship network connecting the top 25 collaborators of C. Ullrich. A scholar is included among the top collaborators of C. Ullrich 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 C. Ullrich. C. Ullrich 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.
Ullrich, C., Roni Aloni, Mohamed E.M. Saeed, W. R. Ullrich, & Thomas Efferth. (2019). Comparison between tumors in plants and human beings: Mechanisms of tumor development and therapy with secondary plant metabolites. Phytomedicine. 64. 153081–153081. 25 indexed citations
2.
Flury, Pascale, Ana Domínguez‐Ferreras, C. Ullrich, et al.. (2018). Persistence of root-colonizing Pseudomonas protegens in herbivorous insects throughout different developmental stages and dispersal to new host plants. The ISME Journal. 13(4). 860–872. 39 indexed citations
3.
Ullrich, C., et al.. (2017). Detection and growth of endophytic entomopathogenic fungi in dicot crop plants. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 7 indexed citations
4.
Baumann, C., et al.. (2014). Bewertung des Rissverhaltens von Fehlstellen Hochtemperaturbeanspruchter Schaufeln aus Nickelbasis-Gusslegierungen.. 1 indexed citations
5.
Ullrich, C., et al.. (2008). Ni2+ toxicity in rice: Effect on membrane functionality and plant water content. Plant Physiology and Biochemistry. 46(10). 905–910. 72 indexed citations
6.
Zeller, W., et al.. (2006). The essential oil of thyme as a natural plant extract for fire blight control.. Cells. 12(408). 290–292. 1 indexed citations
7.
Aloni, Roni, Etay Aloni, Markus Langhans, & C. Ullrich. (2006). Role of Cytokinin and Auxin in Shaping Root Architecture: Regulating Vascular Differentiation, Lateral Root Initiation, Root Apical Dominance and Root Gravitropism. Annals of Botany. 97(5). 883–893. 505 indexed citations breakdown →
8.
Sobiczewski, P., et al.. (2006). Control of fire blight (Erwinia amylovora) using epiphytic bacteria with known activity against postharvest diseases of apples.. 296–299.
9.
Aloni, Roni, et al.. (2004). Role of cytokinin in the regulation of root gravitropism. Planta. 220(1). 177–182. 81 indexed citations
10.
11.
Aloni, Roni, et al.. (2003). Flavonoid-related regulation of auxin accumulation in Agrobacterium tumefaciens -induced plant tumors. Planta. 218(2). 163–178. 33 indexed citations
12.
13.
Ullrich, C. & Roni Aloni. (2000). Vascularization is a general requirement for growth of plant and animal tumours. Journal of Experimental Botany. 51(353). 1951–1960. 63 indexed citations
14.
15.
Schlichting, Ralf, et al.. (1999). Identification and localization of transformed cells in Agrobacterium tumefaciens -induced plant tumors. Planta. 209(4). 399–405. 26 indexed citations
16.
Ullrich, W. R., et al.. (1998). Nitrate uptake and extracellular alkalinization by the green alga Hydrodictyon reticulatum in blue and red light. Journal of Experimental Botany. 49(324). 1157–1162. 25 indexed citations
17.
Ullrich, C., et al.. (1996). Mechanism of anion uptake in plant roots: quantitative evaluation of H+/NO3- and H+/H2PO4- stoichiometries. Plant Physiology and Biochemistry. 34(5). 629–636. 46 indexed citations
18.
Ullrich, C. & J. Guern. (1990). Ion fluxes and pH changes induced by trans-plasmalemma electron transfer and fusicoccin in Lemna gibba L. (strain G1). Planta. 180(3). 390–9. 28 indexed citations
19.
20.
Sanz, Amparo & C. Ullrich. (1989). Uptake of Acidic and Basic Sugar Derivatives in Lemna gibba G1. PLANT PHYSIOLOGY. 90(4). 1532–1537. 6 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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