Ursula Halfter

4.2k total citations · 2 hit papers
16 papers, 3.2k citations indexed

About

Ursula Halfter is a scholar working on Plant Science, Molecular Biology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Ursula Halfter has authored 16 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Plant Science, 10 papers in Molecular Biology and 1 paper in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Ursula Halfter's work include Plant Stress Responses and Tolerance (7 papers), Plant Molecular Biology Research (7 papers) and Plant nutrient uptake and metabolism (5 papers). Ursula Halfter is often cited by papers focused on Plant Stress Responses and Tolerance (7 papers), Plant Molecular Biology Research (7 papers) and Plant nutrient uptake and metabolism (5 papers). Ursula Halfter collaborates with scholars based in United States, Germany and China. Ursula Halfter's co-authors include Jian‐Kang Zhu, Manabu Ishitani, Yan Guo, Jiping Liu, Cheol-Soo Kim, Masaru Ohta, Chun‐Peng Song, Weiming Shi, Pengcheng Wang and Manu Agarwal and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Genes & Development.

In The Last Decade

Ursula Halfter

16 papers receiving 3.1k citations

Hit Papers

The Arabidopsis SOS2 protein kinase physically interacts ... 2000 2026 2008 2017 2000 2000 200 400 600
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. The Arabidopsis SOS2 protein kinase physically interacts with and is activated by the calcium-binding protein SOS3
    2000 639 citations Ursula Halfter, Manabu Ishitani et al. Proceedings of the National Academy of Sciences profile →
  2. The Arabidopsis thaliana SOS2 gene encodes a protein kinase that is required for salt tolerance
    2000 634 citations Jiping Liu, Manabu Ishitani et al. Proceedings of the National Academy of Sciences profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ursula Halfter United States 14 2.9k 1.7k 67 63 43 16 3.2k
Zhizhong Chen China 15 2.5k 0.8× 1.6k 0.9× 49 0.7× 61 1.0× 31 0.7× 21 2.9k
Becky Stevenson United States 16 2.5k 0.9× 1.8k 1.1× 91 1.4× 60 1.0× 63 1.5× 19 2.9k
Cheol-Soo Kim South Korea 10 2.3k 0.8× 1.1k 0.7× 72 1.1× 41 0.7× 20 0.5× 18 2.5k
Nathalie Frangne France 19 1.6k 0.5× 1.3k 0.7× 79 1.2× 155 2.5× 41 1.0× 25 1.9k
Martine Devic France 24 1.6k 0.5× 1.7k 1.0× 88 1.3× 43 0.7× 41 1.0× 32 2.2k
Ming Luo China 25 2.5k 0.9× 2.1k 1.2× 83 1.2× 86 1.4× 17 0.4× 28 2.9k
Simon Stael Belgium 21 1.4k 0.5× 1.3k 0.7× 28 0.4× 96 1.5× 40 0.9× 43 2.0k
Silvia Rubio Spain 10 2.3k 0.8× 1.1k 0.6× 37 0.6× 35 0.6× 26 0.6× 15 2.5k
Jae‐Hoon Lee South Korea 24 1.7k 0.6× 1.5k 0.9× 41 0.6× 96 1.5× 17 0.4× 66 2.3k
Bin G. Kang South Korea 23 1.3k 0.4× 953 0.6× 48 0.7× 71 1.1× 12 0.3× 56 1.7k

Countries citing papers authored by Ursula Halfter

Since Specialization
Citations

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

Fields of papers citing papers by Ursula Halfter

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ursula Halfter

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

All Works

16 of 16 papers shown
1.
Halfter, Ursula, et al.. (2005). Angiotensin II stimulated transcription of cyclooxygenase II is regulated by a novel kinase cascade involving Pyk2, MEKK4 and annexin II. Molecular and Cellular Biochemistry. 271(1-2). 77–90. 23 indexed citations
2.
Halfter, Ursula, et al.. (2005). Interferon-γ-dependent tyrosine phosphorylation of MEKK4 via Pyk2 is regulated by annexin II and SHP2 in keratinocytes. Biochemical Journal. 388(1). 17–28. 33 indexed citations
3.
Song, Chun‐Peng, Manu Agarwal, Masaru Ohta, et al.. (2005). Role of an Arabidopsis AP2/EREBP-Type Transcriptional Repressor in Abscisic Acid and Drought Stress Responses. The Plant Cell. 17(8). 2384–2396. 414 indexed citations
4.
Ohta, Masaru, Yan Guo, Ursula Halfter, & Jian‐Kang Zhu. (2003). A novel domain in the protein kinase SOS2 mediates interaction with the protein phosphatase 2C ABI2. Proceedings of the National Academy of Sciences. 100(20). 11771–11776. 315 indexed citations
5.
Guo, Yan, Liming Xiong, Chun‐Peng Song, et al.. (2002). A Calcium Sensor and Its Interacting Protein Kinase Are Global Regulators of Abscisic Acid Signaling in Arabidopsis. Developmental Cell. 3(2). 233–244. 235 indexed citations
6.
Guo, Yan, Ursula Halfter, Manabu Ishitani, & Jian‐Kang Zhu. (2001). Molecular Characterization of Functional Domains in the Protein Kinase SOS2 That Is Required for Plant Salt Tolerance. The Plant Cell. 13(6). 1383–1383. 6 indexed citations
7.
Guo, Yan, Ursula Halfter, Manabu Ishitani, & Jian‐Kang Zhu. (2001). Molecular Characterization of Functional Domains in the Protein Kinase SOS2 That Is Required for Plant Salt Tolerance. The Plant Cell. 13(6). 1383–1400. 214 indexed citations
8.
Ishitani, Manabu, et al.. (2000). SOS3 Function in Plant Salt Tolerance Requires N-Myristoylation and Calcium Binding. The Plant Cell. 12(9). 1667–1667. 22 indexed citations
9.
Ishitani, Manabu, Jiping Liu, Ursula Halfter, et al.. (2000). SOS3 Function in Plant Salt Tolerance Requires N-Myristoylation and Calcium Binding. The Plant Cell. 12(9). 1667–1677. 392 indexed citations
10.
Halfter, Ursula, Manabu Ishitani, & Jian‐Kang Zhu. (2000). The Arabidopsis SOS2 protein kinase physically interacts with and is activated by the calcium-binding protein SOS3. Proceedings of the National Academy of Sciences. 97(7). 3735–3740. 639 indexed citations breakdown →
11.
Liu, Jiping, Manabu Ishitani, Ursula Halfter, Cheol-Soo Kim, & Jian‐Kang Zhu. (2000). The Arabidopsis thaliana SOS2 gene encodes a protein kinase that is required for salt tolerance. Proceedings of the National Academy of Sciences. 97(7). 3730–3734. 634 indexed citations breakdown →
12.
Halfter, Ursula, et al.. (1994). Cloning and biochemical characterization of a plant protein kinase that phosphorylates serine, threonine, and tyrosine.. Journal of Biological Chemistry. 269(50). 31626–31629. 48 indexed citations
13.
Halfter, Ursula, et al.. (1994). Transient expression in leaf mesophyll protoplasts of Arabidopsis thaliana. Plant Cell Tissue and Organ Culture (PCTOC). 36(1). 53–58. 6 indexed citations
14.
Halfter, Ursula, Naushad Ali, Jörg Stockhaus, Liwei Ren, & N H Chua. (1994). Ectopic expression of a single homeotic gene, the Petunia gene green petal, is sufficient to convert sepals to petaloid organs.. The EMBO Journal. 13(6). 1443–1449. 39 indexed citations
15.
Halfter, Ursula, Peter C. Morris, & Lothar Willmitzer. (1992). Gene targeting in Arabidopsis thaliana. Molecular and General Genetics MGG. 231(2). 186–193. 62 indexed citations
16.
Stockhaus, Jörg, Akira Nagatani, Ursula Halfter, et al.. (1992). Serine-to-alanine substitutions at the amino-terminal region of phytochrome A result in an increase in biological activity.. Genes & Development. 6(12a). 2364–2372. 92 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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