W. J. Botha

1.4k total citations
36 papers, 1.0k citations indexed

About

W. J. Botha is a scholar working on Plant Science, Cell Biology and Molecular Biology. According to data from OpenAlex, W. J. Botha has authored 36 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Plant Science, 15 papers in Cell Biology and 10 papers in Molecular Biology. Recurrent topics in W. J. Botha's work include Plant Pathogens and Fungal Diseases (15 papers), Plant Pathogens and Resistance (13 papers) and Yeasts and Rust Fungi Studies (6 papers). W. J. Botha is often cited by papers focused on Plant Pathogens and Fungal Diseases (15 papers), Plant Pathogens and Resistance (13 papers) and Yeasts and Rust Fungi Studies (6 papers). W. J. Botha collaborates with scholars based in South Africa, United States and Poland. W. J. Botha's co-authors include P.G. Eriksson, Roger M. H. Smith, A. McLeod, Christoffel F. J. Spies, Yared Tesfai Tewoldemedhin, Mark Mazzola, L. Mostert, Ian J. Law, A. Eicker and Emma T. Steenkamp and has published in prestigious journals such as Molecular Phylogenetics and Evolution, Mycologia and Biology and Fertility of Soils.

In The Last Decade

W. J. Botha

36 papers receiving 961 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
W. J. Botha South Africa	17	697	408	179	124	108	36	1.0k
Winfried Remy Germany	18	1.3k 1.8×	305 0.7×	320 1.8×	12 0.1×	198 1.8×	22	1.8k
J. Mercier France	18	318 0.5×	112 0.3×	72 0.4×	329 2.7×	21 0.2×	42	1.1k
Thomas E. Chase United States	15	525 0.8×	361 0.9×	163 0.9×	100 0.8×	7 0.1×	43	788
Steven L. Miller United States	22	1.4k 1.9×	722 1.8×	199 1.1×	8 0.1×	8 0.1×	63	1.6k
Isabel Figueiral France	22	514 0.7×	22 0.1×	101 0.6×	34 0.3×	552 5.1×	62	1.7k
Francisca P. Díaz Chile	12	193 0.3×	18 0.0×	132 0.7×	19 0.2×	92 0.9×	21	628
J. A. Parmelee Canada	11	516 0.7×	327 0.8×	233 1.3×	17 0.1×	9 0.1×	36	761
Rosemary L. Pendleton United States	16	269 0.4×	18 0.0×	72 0.4×	11 0.1×	7 0.1×	48	776
Irina A. Alekhina Russia	17	306 0.4×	255 0.6×	160 0.9×	6 0.0×	14 0.1×	34	853
R. J. Johns United Kingdom	10	324 0.5×	37 0.1×	211 1.2×	3 0.0×	36 0.3×	30	964

Countries citing papers authored by W. J. Botha

Since Specialization

Citations

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

Fields of papers citing papers by W. J. Botha

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W. J. Botha

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

Jami, Fahimeh & W. J. Botha. (2023). Pythium and related species on blueberry plants in South Africa. Journal of Phytopathology. 171(11-12). 754–759. 2 indexed citations

Lamprecht, Sandra C., et al.. (2013). Pythium cederbergense sp. nov. and related taxa from Pythium clade G associated with the South African indigenous plant Aspalathus linearis (rooibos). Mycologia. 105(5). 1174–1189. 10 indexed citations

Spies, Christoffel F. J., et al.. (2011). Molecular analyses of Pythium irregulare isolates from grapevines in South Africa suggest a single variable species. Fungal Biology. 115(12). 1210–1224. 26 indexed citations

Spies, Christoffel F. J., Mark Mazzola, W. J. Botha, et al.. (2010). Oogonial biometry and phylogenetic analyses of the Pythium vexans species group from woody agricultural hosts in South Africa reveal distinct groups within this taxon. Fungal Biology. 115(2). 157–168. 23 indexed citations

Denman, Sandra, et al.. (2010). Phytophthora taxa associated with cultivated Agathosma, with emphasis on the P. citricola complex and P. capensis sp. nov.. Persoonia - Molecular Phylogeny and Evolution of Fungi. 25(1). 32–49. 51 indexed citations

McLeod, A., W. J. Botha, J.C. Meitz-Hopkins, et al.. (2009). Morphological and phylogenetic analyses of Pythium species in South Africa. Mycological Research. 113(9). 933–951. 50 indexed citations

Belbahri, Lassaâd, A. McLeod, Bernard Paul, et al.. (2008). Intraspecific and within-isolate sequence variation in the ITS rRNA gene region ofPythium mercurialesp. nov. (Pythiaceae). FEMS Microbiology Letters. 284(1). 17–27. 51 indexed citations

Steenkamp, Emma T., et al.. (2008). Cowpea and peanut in southern Africa are nodulated by diverse Bradyrhizobium strains harboring nodulation genes that belong to the large pantropical clade common in Africa. Molecular Phylogenetics and Evolution. 48(3). 1131–1144. 80 indexed citations

Botha, W. J., et al.. (2007). Isolation and Identification of the Causal Agent of Brown Stalk Rot, A New Disease of Maize in South Africa. Plant Disease. 91(6). 711–718. 51 indexed citations

10.

Crous, P.W., Alan R. Wood, Seonju Lee, et al.. (2006). How many species of fungi are there at the tip of Africa?. Studies in Mycology. 55. 13–33. 99 indexed citations

11.

Botha, W. J., et al.. (2006). The structural/stratigraphic development of the Sishen South (Welgevonden) iron ore deposit, South Africa, as deduced from ground gravity data modelling. Applied Earth Science Transactions of the Institutions of Mining and Metallurgy Section B. 115(4). 174–186. 2 indexed citations

12.

Botha, W. J., et al.. (2004). Effect of soil bradyrhizobia on the success of soybean inoculant strain CB 1809. Microbiological Research. 159(3). 219–231. 34 indexed citations

13.

Botha, W. J., et al.. (2002). Colony variation in Sinorhizobium meliloti inoculant strain U 45. Microbiological Research. 157(4). 283–292. 7 indexed citations

14.

Botha, W. J., et al.. (2002). Bradyrhizobium sp. ( Lupinus ) in the winter rainfall region of South Africa. Biology and Fertility of Soils. 36(5). 335–343. 8 indexed citations

15.

Smith, Roger M. H., P.G. Eriksson, & W. J. Botha. (1993). A review of the stratigraphy and sedimentary environments of the Karoo-aged basins of Southern Africa. Journal of African Earth Sciences (and the Middle East). 16(1-2). 143–169. 187 indexed citations

16.

Eriksson, P. G., et al.. (1990). A hypothesis on the nature of the Pretoria Group basin; discussion and reply. South African Journal of Geology. 93(4). 702–705. 1 indexed citations

17.

Eicker, A., W. J. Botha, & J. Chris Coetzee. (1990). The occurrence of a virus-associated disease in the cultivated mushroom Agaricus bisporus in South Africa.. Phytophylactica. 22(3). 311–315. 1 indexed citations

18.

Botha, W. J., A. Eicker, & Sophie Meillon. (1990). A comparative physiological study of four weed moulds of Agaricus bisporus mushroom compost.. Phytophylactica. 22(2). 219–223. 2 indexed citations

19.

Eriksson, P.G., et al.. (1988). A hypothesis on the nature of the Pretoria Group basin. South African Journal of Geology. 91(4). 490–497. 19 indexed citations

20.

Botha, W. J., et al.. (1979). Metamorphic zonation in the Matsap, Kheis and Namaqua domains east and west of the Kaaien Hills, northern Cape Province. South African Journal of Geology. 82(1). 55–66. 1 indexed citations

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