N. T. Keen

9.7k total citations · 4 hit papers
103 papers, 7.4k citations indexed

About

N. T. Keen is a scholar working on Plant Science, Molecular Biology and Cell Biology. According to data from OpenAlex, N. T. Keen has authored 103 papers receiving a total of 7.4k indexed citations (citations by other indexed papers that have themselves been cited), including 88 papers in Plant Science, 28 papers in Molecular Biology and 14 papers in Cell Biology. Recurrent topics in N. T. Keen's work include Plant-Microbe Interactions and Immunity (36 papers), Plant Pathogenic Bacteria Studies (26 papers) and Legume Nitrogen Fixing Symbiosis (25 papers). N. T. Keen is often cited by papers focused on Plant-Microbe Interactions and Immunity (36 papers), Plant Pathogenic Bacteria Studies (26 papers) and Legume Nitrogen Fixing Symbiosis (25 papers). N. T. Keen collaborates with scholars based in United States, Israel and Japan. N. T. Keen's co-authors include Stanley Tamaki, Alan Collmer, Daisuke Kobayashi, David Trollinger, Douglas Dahlbeck, Brian J. Staskawicz, Carolyn A. Napoli, Masaaki Yoshikawa, James J. Sims and R. I. Buzzell and has published in prestigious journals such as Science, The Plant Cell and PLANT PHYSIOLOGY.

In The Last Decade

N. T. Keen

102 papers receiving 7.0k citations

Hit Papers

align trajectories

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.

Improved broad-host-range plasmids for DNA cloning in Gram-negative bacteria

1988 1.4k citations N. T. Keen, Stanley Tamaki et al. Gene profile →
Molecular characterization of cloned avirulence genes from race 0 and race 1 of Pseudomonas syringae pv. glycinea

1987 761 citations N. T. Keen et al. profile →
The Role of Pectic Enzymes in Plant Pathogenesis

1986 708 citations N. T. Keen et al. profile →
GENE-FOR-GENE COMPLEMENTARITY IN PLANT-PATHOGEN INTERACTIONS

1990 533 citations N. T. Keen profile →

Peers

Countries citing papers authored by N. T. Keen

Since Specialization

Citations

This map shows the geographic impact of N. T. Keen'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 N. T. Keen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites N. T. Keen more than expected).

Fields of papers citing papers by N. T. Keen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by N. T. Keen. 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 N. T. Keen. The network helps show where N. T. Keen may publish in the future.

Co-authorship network of co-authors of N. T. Keen

This figure shows the co-authorship network connecting the top 25 collaborators of N. T. Keen. A scholar is included among the top collaborators of N. T. Keen 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 N. T. Keen. N. T. Keen 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

#	Work	Indexed citations
1	An updated checklist of serpentinophytes for research and conservation in ultramafic ecosystems on the southern Iberian Peninsula (Spain) 2024 ·Ecological Research ·Andrés Vicente Pérez Latorre, N. T. Keen, (unknown), (unknown), (unknown)	2
2	Molecular Aspects of Pathogenicity and Resistance: Requirement for Signal Transduction 1998 ·Mycologia ·Michéle C. Heath, Dallice Mills, H. Kunoh, N. T. Keen, S. Mayama	12
3	Cloning and Characterization of a Xylanase Gene from Corn Strains ofErwinia chrysanthemi 1996 ·Molecular Plant-Microbe Interactions ·N. T. Keen	48
4	Soybean resistance genes specific for different Pseudomonas syringae avirulence genes are allelic, or closely linked, at the RPG1 locus. 1995 ·Genetics ·Tom Ashfield, N. T. Keen, R. I. Buzzell, Roger W. Innes	73
5	The Three-Dimensional Structure of Pectate Lyase E, a Plant Virulence Factor from Erwinia chrysanthemi 1994 ·PLANT PHYSIOLOGY ·S. E. Lietzke, Marilyn D. Yoder, N. T. Keen, Frances Jurnak	81
6	Characterization of the prtA and prtB genes of Erwinia chrysanthemi EC 16 1993 ·Gene ·Carol Boyd, N. T. Keen	6
7	Cloning and characterization of a phospholipase gene from Erwinia chrysanthemi EC16. 1992 ·Molecular Microbiology ·N. T. Keen, Darin Ridgway, Carol Boyd	15
8	The molecular biology of disease resistance 1992 ·Plant Molecular Biology ·N. T. Keen	130
9	Plant transformation: a simple particle bombardment device based on flowing helium 1992 ·Plant Molecular Biology ·Y. Takeuchi, (unknown), N. T. Keen	81
10	Friends and Foes: New Insights into Plant-Microbe Interactions 1992 ·The Plant Cell ·Gary Stacey, Peter M. Gresshoff, N. T. Keen	13
11	Improved broad-host-range plasmids for DNA cloning in Gram-negative bacteria breakdown → 1988 ·Gene ·N. T. Keen, Stanley Tamaki, Daisuke Kobayashi, David Trollinger	1369
12	The purification of victorin and its phytoalexin elicitor activity in oat leaves 1986 ·Physiological and Molecular Plant Pathology ·S. Mayama, T. Tani, T. Ueno, Sharon L. Midland, James J. Sims, N. T. Keen	45
13	β-1,3-Endoglucanase from Soybean Releases Elicitor-Active Carbohydrates from Fungus Cell Walls 1983 ·PLANT PHYSIOLOGY ·N. T. Keen, Masaaki Yoshikawa	190
14	Phytoalexin Elicitor Activity of Carbohydrates from Phytophthora megasperma f.sp. glycinea and Other Sources 1983 ·PLANT PHYSIOLOGY ·N. T. Keen, Masaaki Yoshikawa, (unknown)	72
15	A Receptor on Soybean Membranes for a Fungal Elicitor of Phytoalexin Accumulation 1983 ·PLANT PHYSIOLOGY ·Masaaki Yoshikawa, N. T. Keen, (unknown)	91
16	Association of coumestanss with tee hypersensitivity of Lima bean roots to Pratylenchus scribneri 1977 ·Physiological Plant Pathology ·J. R. Rich, N. T. Keen, I. J. Thomason	43
17	Defence Mechanisms of Plants 1977 ·Mycologia ·N. T. Keen, B.J. Deverall	42
18	Plant-Parasite Interactions 1977 ·Science ·N. T. Keen	1
19	Purification and characterization of endopolygalacturonase from Verticillium albo-atrum 1970 ·Archives of Biochemistry and Biophysics ·(unknown), N. T. Keen	44
20	INDUCTION AND REPRESSION OF ENDOPOLYGALACTURONASE SYNTHESIS BY PYRENOCHAETA TERRESTRIS 1966 ·Canadian Journal of Microbiology ·N. T. Keen, (unknown)	25

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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