Prof Botma Visser
Position
Associate Professor
Department
Plant Sciences
Address
BL 134
Plant Sciences
IB 62
R7366
Telephone
051 4013278
Office
134
Information

Short CV

Publications

Klopper KC, Spies JJ and Visser B, 1998.  Cytogenetic studies in the genus Pentaschistis (Poaceae: Arundinoideae).  Bothalia 28: 231-238. Impact factor: 1.267.

Spies JJ, Klopper KC and Visser B, 1999.  Apomixis in the genus Pentaschistis (Arundinoideae).  Bothalia 29: 203 - 209. Impact factor: 1.267.

Czérnic P, Visser B, Sun W, Savouré A, Deslandes L, Marco Y, Van Montagu M and Verbruggen N, 1999.  Characterization of an Arabidopsis thaliana receptor-like kinase gene activated by oxidative stress and pathogen attack.  Plant Journal 18: 321 - 328. Impact factor: 6.582.

Pretorius ZA, Visser B and du Preez PJ, 2007.  First Report of Asian Soybean Rust (Phakopsora pachyrhizi) on kudzu in South Africa.  Plant Disease 91 (10): 1364. Impact factor: 2.46.

Visser B, L Herselman and ZA Pretorius, 2009.  Genetic comparison of Ug99 with selected South African races of Puccinia graminis f. sp. tritici.  Molecular Plant Pathology 10 (2): 213 - 222. Impact factor: 4.485.

Pretorius ZA, Bender CM, Visser B and Terefe T, 2010. First report of a Puccinia graminis f. sp. tritici race virulent to the Sr24 and Sr31 wheat stem rust resistance genes in South Africa. Plant Disease 94 (6): 784. DOI: 10.1094/PDIS-94-6-0784C. Impact factor: 2.46.

Visser B, Herselman L, Park RF, Karaoglu H, Bender CM and Pretorius ZA, 2011.  Characterization of two new Puccinia graminis f. sp. tritici races within the Ug99 lineage in South Africa.  Euphytica 179: 119 - 127.  DOI 10.1007/s10681-010-0269-x. Impact factor: 1.692.

Terefe T, Pretorius ZA, Bender CM, Visser B and Herselman L, 2011.  First report of a new wheat leaf rust (Puccinia triticina) race with virulence for Lr12, 13, and 37 in South Africa.  Plant Disease 95: 611. Impact factor: 2.46.

Mukoyi F, Soko T, Mulima E, Mutari B, Hodson D, Herselman L, Visser B and Pretorius ZA, 2011.  Detection of variants of wheat stem rust race Ug99 (Puccinia graminis f. sp. tritici) in Zimbabwe and Mozambique.  Plant Disease 95: 1188. DOI 10.1094/PDIS-04-11-0300. Impact factor: 2.46.

Visser B, Herselman L, Bender CM and Pretorius ZA, 2012.  Microsatellite analysis of selected Puccinia triticina races in South Africa.  Australasian Plant Pathology 41: 165 – 171.  DOI 10.1007/s13313-011-0104-4. Impact factor: 1.041.

Pretorius ZA, Szabo LJ, Boshoff WHP, Herselman L and Visser B, 2012.  First report of a new TTKSF race of wheat stem rust (Puccinia graminis f. sp. tritici) in South Africa and Zimbabwe. Plant Disease 96: 590. doi:10.1094/PDIS-12-11-1027-PDN. Impact factor: 2.46.

van der Merwe NC, Schneider S-C and Visser B, 2012. TaqMan® Probe-based genotyping errors due to unknown SNP within binding region of LSP1 rs 3817198. Current Oncology 19: e106. Impact factor: 2.473.

Scholtz JJ and Visser B, 2013. Reference gene selection for qPCR gene expression of rust-infected wheat. Physiological and Molecular Plant Pathology 81: 22 - 25. DOI10.1016/j.pmpp.2012.10.006. Impact factor: 2.043.

Cawood ME, Pretorius JC, Visser B and van der Westhuizen, 2013. Induced gene expression in wheat seedlings treated with a crude extract of Agapanthus africanus L. prior to leaf rust infection. African Journal of Biotechnology 12: 2876 - 2883. Impact factor: 0.57.

Terefe TG, Visser B, Herselman L, Prins R, Negussie T, Kolmer JA and Pretorius ZA, 2014. Diversity in Puccinia triticina detected on wheat from 2008 to 2010 and the impact of new races on South African wheat germplasm. European Journal of Plant Pathology 139: 95 - 105.  DOI 10.1007/s10658-013-0368-3. Impact factor: 1.933.

Terefe TG, Visser B, Herselman L, Selinga T and Pretorius ZA, 2014. First report of Puccinia triticina (Leaf Rust) race FBPT on wheat in South Africa. Plant Disease 98: 1001. Impact factor: 2.46.

Figlan S, le Roux C, Terefe T, Botes W, Visser B, Shimelis H and Tsilo TJ, 2014. Wheat stem rust in South Africa: current status and future research directions. African Journal of Biotechnology 13: 4188 - 4199. Impact factor: 0.57.

Keet J-H, Visser B, du Preez PJ and Cindi D, 2014. Barberry Pirates. Two species of Berberis could become problem invaders in South Africa. Veld & Flora December 2014: 174 - 175.

Pretorius ZA, Bender CM and Visser B, 2015. The rusts of wild rye in South Africa. South African Journal of Botany 96: 94 - 98. Impact factor: 1.511.

Pretorius ZA, Visser B, Terefe TG, Herselman L, Prins R, Soko T, Siwale J, Mutari B, Selinga TI and Hodson DP, 2015. Races of Puccinia triticina detected on wheat in Zimbabwe, Zambia and Malawi and regional germplasm responses. Australasian Plant Pathology 44: 217 - 224. DOI 10.1007/s13313-014-0339-y. Impact factor: 1.041.

Castelyn HD, Appelgryn JJ, Mafa MS, Pretorius ZA and Visser B, 2015. Volatiles emitted by leaf rust infected wheat induce a defence response in exposed uninfected wheat seedlings. Australasian Plant Pathology 44: 245 - 254. DOI 10.1007/s13313-014-0336-1. Impact factor: 1.041.

Visser B, Herselman L and Pretorius ZA, 2016. Microsatellite characterisation of South African Puccinia striiformis races. South African Journal of Plant and Soil 33: 161 -166. DOI 10.1080/02571862.2015.1125957. Impact factor: 0.51.

Terefe TG, Visser B and Pretorius ZA, 2016. Variation in Puccinia graminis f. sp. tritici detected on wheat and triticale in South Africa from 2009 to 2013. Crop Protection 86: 9 - 16. DOI 10.1016/j.cropro.2016.04.006. Impact factor: 1.493.

Publications (Short List)

Scholtz JJ and Visser B, 2013. Reference gene selection for qPCR gene expression of rust-infected wheat. Physiological and Molecular Plant Pathology 81: 22 - 25. DOI10.1016/j.pmpp.2012.10.006. Impact factor: 2.043.

Cawood ME, Pretorius JC, Visser B and van der Westhuizen, 2013. Induced gene expression in wheat seedlings treated with a crude extract of Agapanthus africanus L. prior to leaf rust infection. African Journal of Biotechnology 12: 2876 - 2883. Impact factor: 0.57.

Terefe TG, Visser B, Herselman L, Prins R, Negussie T, Kolmer JA and Pretorius ZA, 2014. Diversity in Puccinia triticina detected on wheat from 2008 to 2010 and the impact of new races on South African wheat germplasm. European Journal of Plant Pathology 139: 95 - 105.  DOI 10.1007/s10658-013-0368-3. Impact factor: 1.933.

Terefe TG, Visser B, Herselman L, Selinga T and Pretorius ZA, 2014. First report of Puccinia triticina (Leaf Rust) race FBPT on wheat in South Africa. Plant Disease 98: 1001. Impact factor: 2.46.

Figlan S, le Roux C, Terefe T, Botes W, Visser B, Shimelis H and Tsilo TJ, 2014. Wheat stem rust in South Africa: current status and future research directions. African Journal of Biotechnology 13: 4188 - 4199. Impact factor: 0.57.

Keet J-H, Visser B, du Preez PJ and Cindi D, 2014. Barberry Pirates. Two species of Berberis could become problem invaders in South Africa. Veld & Flora December 2014: 174 - 175.

Pretorius ZA, Bender CM and Visser B, 2015. The rusts of wild rye in South Africa. South African Journal of Botany 96: 94 - 98. Impact factor: 1.511.

Pretorius ZA, Visser B, Terefe TG, Herselman L, Prins R, Soko T, Siwale J, Mutari B, Selinga TI and Hodson DP, 2015. Races of Puccinia triticina detected on wheat in Zimbabwe, Zambia and Malawi and regional germplasm responses. Australasian Plant Pathology 44: 217 - 224. DOI 10.1007/s13313-014-0339-y. Impact factor: 1.041.

Castelyn HD, Appelgryn JJ, Mafa MS, Pretorius ZA and Visser B, 2015. Volatiles emitted by leaf rust infected wheat induce a defence response in exposed uninfected wheat seedlings. Australasian Plant Pathology 44: 245 - 254. DOI 10.1007/s13313-014-0336-1. Impact factor: 1.041.

Visser B, Herselman L and Pretorius ZA, 2016. Microsatellite characterisation of South African Puccinia striiformis races. South African Journal of Plant and Soil 33: 161 -166. DOI 10.1080/02571862.2015.1125957. Impact factor: 0.51.

Terefe TG, Visser B and Pretorius ZA, 2016. Variation in Puccinia graminis f. sp. tritici detected on wheat and triticale in South Africa from 2009 to 2013. Crop Protection 86: 9 - 16. DOI 10.1016/j.cropro.2016.04.006. Impact factor: 1.493.


Research

International and national papers and posters

 

Visser B, Viljoen R, Janse van Vuuren L, Wolmarans K, Swart WJ and Pretorius JC, 2012. The impact of selected plant activators on wheat and herbicides on the soil microbial population. 9th Inkaba yeAfrica GEO-FUTURE Workshop, 25-30 November 2012, Potsdam, Germany.

Szabo LJ, Visser B, Sakthikumar S, Johnson JL, Park RF and Cuomo C, 2013. Understanding the genetic landscape of Puccinia graminis f. sp. tritici, from a global to country perspective. BGRI Technical Workshop. August 19th to 22nd, 2013, New Delhi, India.

Pretorius ZA, Visser B, Terefe T and Prins R, 2014. Discovery, mutation and spread of Ug99: a South African perspective. II Workshop on surveillance of race Ug99 in South America and breeding wheat for resistance. Porto Alegre, Brazil, October 8th to 10th, 2014.

van der Merwe NC, Combrink HMVE, Visser B, Oosthuizen J, Moeti PJ, Buccamazza I and Foulkes WD, 2016. BRCA mutation spectrum within the South African Indian population: impact on diagnostic services. Current Oncology 23: e289 (DOI:

  

Terefe TG, Visser B, Prins R, Herselman L, Negussie T and Pretorius ZA, 2013. Variation in Puccinia triticina on wheat in South Africa and reaction of commercial cultivars and breeding lines to recently identified races. 48th Congress of the Southern African Society for Plant Pathology. January 20th to 23rd, 2013, Klein Kariba, Bela-Bela, South Africa.

Visser B, Selinga TI, Terefe TG, Herselman L and Pretorius ZA, 2015. Genetic diversity in Puccinia triticina causing wheat leaf rust in South Africa. 41st South African Association of Botanists conference. January 11th to 15th, 2015. Thsipise Forever Resort, Limpopo, South Africa.

Castelyn HD, Visser B and Pretorius ZA, 2015. The timing and molecular features of adult plant resistance in wheat against stem rust. 41st South African Association of Botanists conference. January 11th to 15th, 2015. Thsipise Forever Resort, Limpopo, South Africa.

Viljoen R, Mokheseng KE, Kemp G, Pretorius JC and Visser B, 2015. A Lupinus albus seed suspension affects photosynthesis in wheat seedlings. 41st South African Association of Botanists conference. January 11th to 15th, 2015. Thsipise Forever Resort, Limpopo, South Africa.

Visser B, Selinga TI, Terefe TG, Herselman L and Pretorius ZA, 2015. Genetic analysis of the Puccinia graminis f. sp. tritici population in South Africa. 49th Southern African Society for Plant Pathology conference. January 19th to 21st, 2015. Bains Lodge, Bloemfontein, South Africa.

Castelyn HD, Visser B and Pretorius ZA, 2015. Adult plant resistance in wheat: Microscopic observation of stem rust colonization. 49th Southern African Society for Plant Pathology conference. January 19th to 21st, 2015. Bains Lodge, Bloemfontein, South Africa.

Terefe TG, Visser B and Pretorius ZA, 2016. Variation in Puccinia triticina collected from wheat and triticale in South Africa. Combined Crops, Soils, Horticulture and Weeds Congress. January 18th to 21st, 2016. Bloemfontein, South Africa.

Visser B, Terefe TG, Herselman L and Pretorius ZA, 2016. Ten years of genotypic analysis of the three wheat rusts in southern Africa. 11th SAPBA Symposium. March 8th to 10th, 2016.  Protea Hotel Technopark, Stellenbosch.

Castelyn HD, Ereful NC, Visser B, Boyd LA and Pretorius ZA, 2017. Changes in gene expression within the adult plant resistant wheat-stem rust interaction. 49th Southern African Society for Plant Pathology conference. January 15th to 19th, 2017. Champagne Sports Resort, Drakensberg, South Africa.

Visser B, Park RF and Pretorius ZA, 2017. Microsatellite analysis confirms a historical intercontinental movement of Puccinia graminis f. sp. tritici from southern Africa to Australia. January 15th to 19th, 2017. Champagne Sports Resort, Drakensberg, South Africa.

Area(s) of Interest

My primary interest is the genetic interaction between plants and pathogens, more specifically cereals and their respective rusts. The different aspects that I investigate are:

- The genetic interaction between wheat and stem rust in terms of genes involved in the adult plant resistance response.

- Genotyping cereal rusts, include wheat stem, leaf and stripe rust, sunflower rust and oats stem rust.

- Genotyping Russian Wheat Aphid biotypes in South Africa.

- The identification of naturalized Berberis species in South Africa.

- The identification of wheat viruses and their associated vectors in South Africa.

- The control of cereal urediniospore germination using natural compounds. 

Courses Presented

2000 -  present

Presented “Advanced Plant Molecular Biotechnology” (BTNY6874) module to BSc Honors students within the Department of Plant Sciences.

2007 -  present

Presented “Plant Molecular Biotechnology” (BTNY3754) to third year BSc students within the Department of Plant Sciences.

2014 - present

Co-presented “The interdependence of plants and life on earth” (BLGY1643) to first year BSc students


Community Service

Dr Visser annually presents talks to school pupils regarding career opportunities within the field of Biotechnology.  One such an event is the annual Round Table Careers Day for Grade 11 pupils.

Service Learning


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FACULTY CONTACT

Faculty Manager: Velaphi Makgwahla
T: + 27 51 401 3199
E: makgwahlamvt@ufs.ac.za

Marketing Manager: Elfrieda Lötter
T: +27 51 401 2531
E: lottere@ufs.ac.za

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