G.P. Wannigama

475 total citations
22 papers, 377 citations indexed

About

G.P. Wannigama is a scholar working on Molecular Biology, Biochemistry and Pharmacology. According to data from OpenAlex, G.P. Wannigama has authored 22 papers receiving a total of 377 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Molecular Biology, 9 papers in Biochemistry and 6 papers in Pharmacology. Recurrent topics in G.P. Wannigama's work include Traditional and Medicinal Uses of Annonaceae (8 papers), Natural product bioactivities and synthesis (6 papers) and Alkaloids: synthesis and pharmacology (4 papers). G.P. Wannigama is often cited by papers focused on Traditional and Medicinal Uses of Annonaceae (8 papers), Natural product bioactivities and synthesis (6 papers) and Alkaloids: synthesis and pharmacology (4 papers). G.P. Wannigama collaborates with scholars based in Sri Lanka, Fiji and Australia. G.P. Wannigama's co-authors include Peter D. Nichols, John K. Volkman, R.B. Johns, F.T. Gillan, Veranja Karunaratne, B. M. Ratnayake Bandara, Lalith Jayasinghe, Michael Bokel, Wolfgang Kraus and Joanne F. Jamie and has published in prestigious journals such as Phytochemistry, Journal of Natural Products and Planta Medica.

In The Last Decade

G.P. Wannigama

22 papers receiving 341 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
G.P. Wannigama Sri Lanka	10	158	106	69	56	45	22	377
William D. MacLeod United States	14	142 0.9×	47 0.4×	19 0.3×	40 0.7×	66 1.5×	31	856
Wayne T. Iwaoka United States	18	151 1.0×	78 0.7×	29 0.4×	47 0.8×	41 0.9×	43	828
R. C. Cambie New Zealand	16	195 1.2×	68 0.6×	55 0.8×	24 0.4×	56 1.2×	39	701
Terence J. Walton United Kingdom	17	529 3.3×	416 3.9×	67 1.0×	13 0.2×	44 1.0×	60	987
Robert F. Toia Australia	16	191 1.2×	304 2.9×	68 1.0×	85 1.5×	55 1.2×	62	770
M. Streibl Czechia	14	130 0.8×	148 1.4×	22 0.3×	10 0.2×	28 0.6×	57	490
R. I. Morrison United Kingdom	12	144 0.9×	151 1.4×	43 0.6×	6 0.1×	63 1.4×	18	495
George V. Pickwell United States	16	236 1.5×	44 0.4×	22 0.3×	132 2.4×	116 2.6×	34	764
G.R. Jamieson United Kingdom	16	291 1.8×	110 1.0×	179 2.6×	9 0.2×	44 1.0×	33	793
Reino R. Linko Finland	18	135 0.9×	92 0.9×	37 0.5×	7 0.1×	64 1.4×	40	799

Countries citing papers authored by G.P. Wannigama

Since Specialization

Citations

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

Fields of papers citing papers by G.P. Wannigama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G.P. Wannigama. 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 G.P. Wannigama. The network helps show where G.P. Wannigama may publish in the future.

Co-authorship network of co-authors of G.P. Wannigama

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hewage, Chandralal M., et al.. (1998). Antibacterial activity of some medicinal plants of Sri Lanka. Journal of the National Science Foundation of Sri Lanka. 26(1). 27–27. 9 indexed citations

Wannigama, G.P., et al.. (1998). Glucuronides of Diploclisia glaucescens. 4 indexed citations

Herath, H. M. T. Bandara, et al.. (1998). Isoflavonoids and a pterocarpan from Gliricidia sepium. Phytochemistry. 47(1). 117–119. 52 indexed citations

Diyabalanage, Thushara, Mallika Kumarihamy, G.P. Wannigama, et al.. (1997). Alkaloids of Uncaria elliptica. Phytochemistry. 45(8). 1731–1732. 6 indexed citations

Diyabalanage, Thushara, et al.. (1995). Ursene carboxylic acids of Uncaria elliptica. Phytochemistry. 40(4). 1311–1312. 9 indexed citations

Wannigama, G.P., et al.. (1993). Saponins ofDiploclisia glaucescens. Natural product letters. 2(4). 249–253. 10 indexed citations

Bandara, B. M. Ratnayake, Chandralal M. Hewage, Veranja Karunaratne, G.P. Wannigama, & N. K. B. Adikaram. (1992). An antifungal chromene from Eupatorium riparium. Phytochemistry. 31(6). 1983–1985. 15 indexed citations

Bandara, B. M. Ratnayake, Veranja Karunaratne, G.P. Wannigama, et al.. (1990). Isolation of Phaeanthine fromCyclea burmanni. Planta Medica. 56(2). 245–246. 6 indexed citations

Bandara, B. M. Ratnayake, Veranja Karunaratne, G.P. Wannigama, et al.. (1990). Triterpenoidal Constituents ofDiploclisia glaucescens. Planta Medica. 56(3). 290–292. 9 indexed citations

10.

Bandara, B. M. Ratnayake, Lalith Jayasinghe, Veranja Karunaratne, et al.. (1989). Ecdysterone from stem of Diploclisia glaucescens. Phytochemistry. 28(4). 1073–1075. 51 indexed citations

11.

Bandara, B. M. Ratnayake, et al.. (1989). Aporphine Alkaloids fromLitsea gardneriandActinodaphne speciosa. Planta Medica. 55(4). 393–393. 7 indexed citations

12.

Bandara, B. M. Ratnayake, Lalith Jayasinghe, Veranja Karunaratne, et al.. (1989). Diploclisin, a bidesmosidic triterpenoid saponin from Diploclisia glaucescens. Phytochemistry. 28(10). 2783–2785. 15 indexed citations

13.

Cavé, André, Nicole Kunesch, J. Bruneton, R Goutarel, & G.P. Wannigama. (1987). Alcaloëdes du Petchia ceylanica. Journal of Natural Products. 50(6). 1178–1182. 1 indexed citations

14.

Jennings, Richard C., et al.. (1981). Coumarins from Triphasia trifoliata. Phytochemistry. 20(12). 2776–2778. 9 indexed citations

15.

Wannigama, G.P., John K. Volkman, F.T. Gillan, Peter D. Nichols, & R.B. Johns. (1981). A comparison of lipid components of the fresh and dead leaves and pneumatophores of the mangrove Avicennia marina. Phytochemistry. 20(4). 659–666. 111 indexed citations

16.

Sultanbawa, M. Uvais S., et al.. (1979). Alkaloidal and other constituents of Uncaria elliptica and canthium dicoccum. Phytochemistry. 18(8). 1385–1387. 16 indexed citations

17.

Sultanbawa, M. Uvais S., et al.. (1978). Chemical investigation of ceylonese plants. Part XXIX. A survey of plants of Sri Lanka (Ceylon) for alkaloids I. Journal of Natural Products. 41(6). 597–633. 4 indexed citations

18.

Sultanbawa, M. Uvais S., et al.. (1978). Three new ursene carboxylic acids from Uncaria thwaitesii. Phytochemistry. 17(11). 1979–1981. 11 indexed citations

19.

Sultanbawa, M. Uvais S., et al.. (1978). Triterpenoid, coumarin and quinone constituents of eleven Diospyros species (Ebenaceae). Phytochemistry. 17(5). 1007–1009. 6 indexed citations

20.

Karunanayake, E.H., et al.. (1970). Isolation of mangiferin from the bark of Mangifera zeylanica. Phytochemistry. 9(5). 1141–1141. 7 indexed citations

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