K. Johnstone

1.8k total citations
44 papers, 1.4k citations indexed

About

K. Johnstone is a scholar working on Molecular Biology, Genetics and Plant Science. According to data from OpenAlex, K. Johnstone has authored 44 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Molecular Biology, 9 papers in Genetics and 9 papers in Plant Science. Recurrent topics in K. Johnstone's work include Bacterial Genetics and Biotechnology (8 papers), Bacteriophages and microbial interactions (6 papers) and Probiotics and Fermented Foods (6 papers). K. Johnstone is often cited by papers focused on Bacterial Genetics and Biotechnology (8 papers), Bacteriophages and microbial interactions (6 papers) and Probiotics and Fermented Foods (6 papers). K. Johnstone collaborates with scholars based in United Kingdom, Jordan and United States. K. Johnstone's co-authors include Simon J. Foster, David J. Ellar, Gordon S.A.B. Stewart, Duncan White, A.M. Ashby, David S. Ingram, Shiv I. S. Grewal, Bing Han, Padma Venkatasubramanian and Hilary J. Rogers and has published in prestigious journals such as Nature, Applied and Environmental Microbiology and Clinical Infectious Diseases.

In The Last Decade

K. Johnstone

40 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. Johnstone United Kingdom	22	742	430	301	240	195	44	1.4k
Ralph A. Slepecky United States	20	1.1k 1.5×	289 0.7×	415 1.4×	386 1.6×	229 1.2×	37	2.0k
Michio Takeuchi Japan	23	1.1k 1.5×	339 0.8×	287 1.0×	200 0.8×	440 2.3×	91	1.7k
J. R. Kinghorn United Kingdom	21	1.1k 1.4×	598 1.4×	162 0.5×	67 0.3×	165 0.8×	44	1.6k
Hideaki Koike Japan	24	1.5k 2.0×	383 0.9×	324 1.1×	185 0.8×	197 1.0×	92	2.1k
Janet L. Schottel United States	25	960 1.3×	546 1.3×	444 1.5×	291 1.2×	198 1.0×	59	2.1k
Hideo Fukuda Japan	26	876 1.2×	241 0.6×	107 0.4×	109 0.5×	62 0.3×	136	2.3k
I. Kaasen Norway	8	756 1.0×	340 0.8×	356 1.2×	169 0.7×	158 0.8×	9	1.3k
Debbie McLaggan United Kingdom	20	956 1.3×	211 0.5×	381 1.3×	188 0.8×	103 0.5×	36	1.7k
Marie‐Francoise Hullo France	12	591 0.8×	282 0.7×	282 0.9×	186 0.8×	209 1.1×	12	1.1k
Skorn Mongkolsuk Thailand	24	722 1.0×	590 1.4×	229 0.8×	150 0.6×	71 0.4×	82	1.7k

Countries citing papers authored by K. Johnstone

Since Specialization

Citations

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

Fields of papers citing papers by K. Johnstone

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Johnstone

This figure shows the co-authorship network connecting the top 25 collaborators of K. Johnstone. A scholar is included among the top collaborators of K. Johnstone 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 K. Johnstone. K. Johnstone 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

Danziger‐Isakov, Lara, Igho Ofotokun, K. Johnstone, & Kathryn M. Edwards. (2025). Innovations in Career Development Through Mentoring in the VTEU/IDCRC Programs. Clinical Infectious Diseases. 81(Supplement_2). S103–S108.

Dredge, Keith, Edward Hammond, Keith Davis, et al.. (2009). The PG500 series: novel heparan sulfate mimetics as potent angiogenesis and heparanase inhibitors for cancer therapy. Investigational New Drugs. 28(3). 276–283. 95 indexed citations

Carmichael, Patrick, et al.. (2006). Enhancing Small Group Teaching in Plant Sciences: A Research and Development Project in Higher Education. Open Research Online (The Open University).

Johnstone, K.. (1994). The trigger mechanism of spore germination: current concepts. Journal of Applied Bacteriology. 76(S23). 17S–24S. 45 indexed citations

Venkatasubramanian, Padma & K. Johnstone. (1993). Biochemical analysis of germination mutants to characterize germinant receptors of Bacillus subtilis 1604 spores. Journal of General Microbiology. 139(8). 1921–1926. 8 indexed citations

Dyer, Paul S., David S. Ingram, & K. Johnstone. (1993). Evidence for the involvement of linoleic acid and other endogenous lipid factors in perithecial development of Nectria haematococca mating population VI. Mycological Research. 97(4). 485–496. 19 indexed citations

Johnstone, K., et al.. (1992). Evidence for the production during mating of factors involved in suppression of asexual sporulation and the induction of ascocarp formation in Pyrenopeziza brassicae. Mycological Research. 96(9). 757–765. 8 indexed citations

Ingram, David S., et al.. (1992). A Detached Cotyledon Test for the Isolation of Mutants of Pyrenopeziza brassicae Defective in Pathogenicity Determinants. Journal of Phytopathology. 136(3). 204–210. 1 indexed citations

Nutkins, Jennifer C., Russell J. Mortishire‐Smith, Leonard C. Packman, et al.. (1991). ChemInform Abstract: Structure Determination of Tolaasin, an Extracellular Lipodepsipeptide Produced by the Mushroom Pathogen Pseudomonas tolaasii Paine.. ChemInform. 22(28). 1 indexed citations

10.

Foster, Simon J. & K. Johnstone. (1990). Pulling the trigger: the mechanism of bacterial spore germination. Molecular Microbiology. 4(1). 137–141. 97 indexed citations

11.

Venkatasubramanian, Padma & K. Johnstone. (1989). Biochemical Analysis of the Bacillus subtilis 1604 Spore Germination Response. Microbiology. 135(10). 2723–2733. 23 indexed citations

12.

Foster, Simon J. & K. Johnstone. (1988). Germination‐specific cortex‐lytic enzyme is activated during triggering of Bacillus megaterium KM spore germination. Molecular Microbiology. 2(6). 727–733. 31 indexed citations

13.

Foster, Simon J. & K. Johnstone. (1987). Purification and properties of a germination-specific cortex-lytic enzyme from spores of Bacillus megaterium KM. Biochemical Journal. 242(2). 573–579. 58 indexed citations

14.

Salas, José A., K. Johnstone, & David J. Ellar. (1985). Role of uricase in the triggering of germination of Bacillus fastidiosus spores. Biochemical Journal. 229(1). 241–249. 10 indexed citations

15.

Johnstone, K., Gordon S.A.B. Stewart, Ian Scott, & David J. Ellar. (1982). Zinc release and the sequence of biochemical events during triggering of Bacillus megaterium KM spore germination. Biochemical Journal. 208(2). 407–411. 21 indexed citations

16.

Stewart, Gordon S.A.B., et al.. (1981). Commitment of bacterial spores to germinate A measure of the trigger reaction. Biochemical Journal. 198(1). 101–106. 279 indexed citations

17.

Johnstone, K.. (1978). James Walter McLeod 1887-1978. Journal of General Microbiology. 109(1). 1–4. 1 indexed citations

18.

Johnstone, K., et al.. (1970). Effect of the Method of Presentation of the Medium on the Germination and Growth of Single Spores of Bacillus subtilis. Journal of Applied Bacteriology. 33(1). 256–261. 2 indexed citations

19.

Johnstone, K., et al.. (1958). John Gordon. 20th October 1895—6th March 1956. The Journal of Pathology and Bacteriology. 75(1). 218–225.

20.

Johnstone, K., et al.. (1956). Cultural characteristics of dysgonic strains of Microsporum canis bodin. Transactions of the British Mycological Society. 39(4). 442–IN4. 10 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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