J.S. Challice

607 total citations
25 papers, 503 citations indexed

About

J.S. Challice is a scholar working on Plant Science, Molecular Biology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, J.S. Challice has authored 25 papers receiving a total of 503 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Plant Science, 12 papers in Molecular Biology and 4 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in J.S. Challice's work include Phytochemistry and Biological Activities (6 papers), Botanical Studies and Applications (5 papers) and Phytochemicals and Antioxidant Activities (4 papers). J.S. Challice is often cited by papers focused on Phytochemistry and Biological Activities (6 papers), Botanical Studies and Applications (5 papers) and Phytochemicals and Antioxidant Activities (4 papers). J.S. Challice collaborates with scholars based in United Kingdom, Czechia and United States. J.S. Challice's co-authors include M. N. Westwood, A.H. Williams, Alan Williams, Amanda C de C Williams, Václav Pačes, M. Kamínek, Joseph Corse and R. S. Thomas Loeffler and has published in prestigious journals such as Journal of Chromatography A, Phytochemistry and Planta.

In The Last Decade

J.S. Challice

25 papers receiving 443 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J.S. Challice United Kingdom	14	364	245	97	90	61	25	503
Kunijiro Yoshitama Japan	14	243 0.7×	364 1.5×	54 0.6×	220 2.4×	106 1.7×	44	564
J. Ebel Germany	11	514 1.4×	464 1.9×	38 0.4×	47 0.5×	40 0.7×	13	775
S. J. Sheen United States	11	305 0.8×	329 1.3×	37 0.4×	51 0.6×	48 0.8×	30	506
Shunpei Uemoto Japan	13	353 1.0×	339 1.4×	106 1.1×	47 0.5×	54 0.9×	45	489
Norindo Takahashi Japan	10	400 1.1×	275 1.1×	60 0.6×	28 0.3×	36 0.6×	39	603
John Hipskind United States	14	527 1.4×	360 1.5×	49 0.5×	109 1.2×	74 1.2×	19	751
Jean‐Louis Fiasson France	11	137 0.4×	123 0.5×	72 0.7×	60 0.7×	26 0.4×	25	315
Göran Stenlid United Kingdom	14	477 1.3×	384 1.6×	39 0.4×	40 0.4×	24 0.4×	23	681
E. Wong New Zealand	14	173 0.5×	194 0.8×	25 0.3×	47 0.5×	55 0.9×	25	478
P. Tétényi Hungary	12	247 0.7×	200 0.8×	52 0.5×	28 0.3×	199 3.3×	43	440

Countries citing papers authored by J.S. Challice

Since Specialization

Citations

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

Fields of papers citing papers by J.S. Challice

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.S. Challice. 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 J.S. Challice. The network helps show where J.S. Challice may publish in the future.

Co-authorship network of co-authors of J.S. Challice

This figure shows the co-authorship network connecting the top 25 collaborators of J.S. Challice. A scholar is included among the top collaborators of J.S. Challice 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 J.S. Challice. J.S. Challice 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

Challice, J.S.. (1984). Purification of cytokinins on a polyvinylpyrrolidone column followed by analysis on a reversedphase C18ODS HPLC system. Biologia Plantarum. 26(6). 401–404. 1 indexed citations

Challice, J.S., et al.. (1981). The genusMicromeles revisited. Folia Geobotanica et Phytotaxonomica. 16(2). 181–193. 5 indexed citations

Challice, J.S., R. S. Thomas Loeffler, & Alan Williams. (1980). Structure of calleryanin and its benzylic esters from Pyrus and Prunus. Phytochemistry. 19(11). 2435–2437. 18 indexed citations

Kamínek, M., Václav Pačes, Joseph Corse, & J.S. Challice. (1979). Effect of stereospecific hydroxylation of N6-(Δ 2-Isopentenyl)adenosine on cytokinin activity. Planta. 145(3). 239–243. 33 indexed citations

Westwood, M. N. & J.S. Challice. (1978). Morphology and surface topography of pollen and anthers of Pyrus species [including cultivated pears, taxonomy].. Journal of the American Society for Horticultural Science. 17 indexed citations

Challice, J.S.. (1977). Inhibition by phenolic compounds of cytokinin-stimulated betacyanin synthesis inAmaranthus caudatus. Biologia Plantarum. 19(3). 212–218. 6 indexed citations

Challice, J.S.. (1975). Separation of cytokinins by High Pressure Liquid Chromatography. Planta. 122(2). 203–207. 19 indexed citations

Challice, J.S.. (1974). Phenolic compounds of the subfamily Poloideae: a chemotaxonomic survey.. Phytochemistry. 13(1). 315–315. 24 indexed citations

Challice, J.S.. (1974). Rosaceae chemotaxonomy and the origins of the Pomoideae. Botanical Journal of the Linnean Society. 69(4). 239–259. 36 indexed citations

10.

Challice, J.S.. (1973). Phenolic compounds of the genus pyrus. VI. Distribution of phenols amongst the various tissues of the pyrus stem. Journal of the Science of Food and Agriculture. 24(3). 285–293. 7 indexed citations

11.

Challice, J.S.. (1973). Phenolic compounds of the subfamily pomoideae: A chemotaxonomic survey. Phytochemistry. 12(5). 1095–1101. 23 indexed citations

12.

Challice, J.S.. (1972). Phenolics of Pyrus interspecific hybrids. Phytochemistry. 11(10). 3015–3018. 5 indexed citations

13.

Challice, J.S. & A.H. Williams. (1970). A comparative biochemical study of phenolase specificity in Malus, Pyrus and other plants. Phytochemistry. 9(6). 1261–1269. 15 indexed citations

14.

Challice, J.S. & Alan Williams. (1970). Phenolic compounds of the genus Pyrus: A chemotaxonomic study of further Oregon specimens. Phytochemistry. 9(6). 1271–1276. 13 indexed citations

15.

Challice, J.S. & A.H. Williams. (1968). Phenolic compounds of the genus Pyrus—II. Phytochemistry. 7(10). 1781–1801. 42 indexed citations

16.

Challice, J.S. & Alan Williams. (1966). Paper chromatographic separation and behavior of the cis- and trans-isomers of cinnamic acid derivatives. Journal of Chromatography A. 21(2). 357–362. 30 indexed citations

17.

Challice, J.S., et al.. (1966). Identification of unresolved second derivative spectra. Spectrochimica Acta. 22(1). 63–66. 5 indexed citations

18.

Challice, J.S. & Alan Williams. (1965). A spectrophotometric study of the ionization of p-coumaric acid. Spectrochimica Acta. 21(11). 1869–1880. 3 indexed citations

19.

Challice, J.S., et al.. (1965). Mathematical analysis of the Gaussian and Lorentzian incremental second derivative functions. Spectrochimica Acta. 21(4). 791–797. 9 indexed citations

20.

Challice, J.S.. (1964). Resolution of complex ultra-violet spectra by an incremental derivative method. Spectrochimica Acta. 20(5). 765–770. 9 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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