Prof Zakkie Pretorius
Research Fellow
Plant Sciences
BL 233
Plant Sciences
IB 62
051 4012466

Short CV

Zacharias A. Pretorius (PhD Plant Pathology 1987) retired from his lecturing position at UFS in 2017. He lives in Onrusrivier, Hermanus but, as a contractual research fellow, continues to be involved in selected research projects and post-graduate supervision in the Department of Plant Sciences. His research interest is rust diseases of agricultural crops. 


Labuschagne, R. Venter, E., Boshoff, W.H.P., Pretorius, Z.A., Terefe, T. & Visser B. Historical development of the South African Puccinia triticina population. Plant Disease First Look online 2 Feb 2021.

Meyer, W., Boshoff, W.H.P., Minnaar-Ontong, A., Young, A.J., Kong, G., Thompson, S., Pretorius, Z.A., Visser, B. Phenotypic and genotypic variation of Puccinia helianthi in South Africa. Plant Disease First Look online 19 October 2020.

Prins, R., Steffenson, B.J., Case, A.J., Boshoff, W.H.P., Agenbag, G. & Pretorius, Z.A. 2020. Assessments and perspectives on stem rust resistance in South African malting barley. Australasian Plant Pathology 49:679-690.

Maree, G.J., Castelyn, H.D., Bender, C.M., Boshoff, W.H.P. & Pretorius, Z.A. 2020. Comparing infection and colonisation of Puccinia graminis in barley and wheat. Australasian Plant Pathology 49: 431-445.

Pretorius, Z.A., Prins, R., Wessels, E., Bender, C.M., Visser, B., Boshoff, W.H.P. 2020. Accomplishments in wheat rust research in South Africa. SA J Science;116(11/12), Art. #7688, 8 pages. sajs.2020/7688.

Boshoff, W.H.P., Pretorius, Z.A., Terefe, T. & Visser B. 2020. Occurrence and pathogenicity of Puccinia coronata var coronata f. sp. avenae on oat in South Africa. Crop Protection

Kolmer, J.A., Herman, A., Ordoñez, M.E., German, S., Morgounov, A., Pretorius Z.A., Visser, B., Goyeau, H., Anikster, Y., Acevedo, M. 2020. Endemic and panglobal genetic groups, and divergence of host-associated forms in worldwide collections of the wheat leaf rust fungus Puccinia triticina as determined by genotyping by sequencing. Heredity 124: 397-409

Boshoff, WHP, Visser, B, Lewis, CM, Adams, TM, Saunders DGO, Terefe, T, Soko, T, Chiuraise, N and Pretorius, ZA. 2020. First report of Puccinia striiformis f. sp. tritici, causing stripe rust of wheat, in Zimbabwe. Plant Disease 104(1):290 .

Li, F., Upadhyaya, N.M., Sperschneider, J., Matny, O., Nguyen-Phuc, H., Mago, R., Raley, C., Miller, M.E., Silverstein, K.A.T., Henningsen, E., Hirsch, C.D., Visser, B., Pretorius, Z.A., Steffenson, B.J., Schwessinger, B., Dodds, P.N., and Figueroa, M. 2019. Emergence of the Ug99 lineage of the wheat stem rust pathogen through somatic hybridisation. Nature Communications 10:5068 .

Boshoff, W.H.P., Visser, B., Terefe, T and Pretorius, Z.A. 2019. Diversity in Puccinia graminis f. sp. avenae and its impact on oat cultivar response in South Africa. European Journal of Plant Pathology 155:1165-1177.

Kolmer, J.A., Ordoñez, M.E., German, S., Morgounov, A., Pretorius, Z., Visser, B., Goyeau, H., Anikster, Y., & Acevedo, M. 2019. Multilocus genotypes of the wheat leaf rust fungus Puccinia triticina in worldwide regions indicate past and current long distance migration. Phytopathology 109:1453-1463.

Maree, G.J., Prins, R., Boyd, L., Castelyn, H.D., Bender, C.M., Boshoff, W.H.P. & Pretorius, Z.A. 2019. Assessing the individual and combined effects of QTL for adult plant stripe rust resistance derived from Cappelle Desprez. Agronomy 9, article 154, 13 pp. doi:10.3390/agronomy9030154.

Saunders, D.G.O., Pretorius, Z.A. & Hovmoller, M.S. 2019. Tackling the re-emergence of wheat stem rust in Western Europe. Communications Biology 2:51, doi: 10.1038/s42003-019-0294-9.

Terefe, T., Pretorius, Z.A., Visser, B. & Boshoff, W.H.P. 2019. First report of Puccinia graminis f. sp. tritici race PTKSK, a variant of wheat stem rust race Ug99 in South Africa. Plant Disease 103(6) 1421.

Boshoff, W.H.P., Bender, C.M. & Pretorius, Z.A. 2019. The value of field ratings of differential lines for pathotyping Puccinia graminis f. sp. tritici. Europ J Plant Pathol 155:349-352.

Li, H., Boshoff, W.H.P., Pretorius, Z.A., Zheng, Q., Li, B. & Li, Z. 2019. Establishment of wheat - Thinopyrum ponticum translocation lines with resistance to Puccinia graminis f. sp. tritici race Ug99. J Gen Genomics 46: 405-407.

Pretorius, Z.A., Booysen, G.J., Boshoff, W.H.P., Joubert, J., Maree, G.J. & Els, J. 2019. Additive manufacturing of devices used for collection and application of cereal rust urediniospores. Frontiers in Plant Science 10, article 639, 7 pp. doi: 10.3389/fpls.2019.00639.

Wessels, E., Prins, R., Boshoff, W.H.P., Zurn, J., Acevedo, M. & Pretorius, Z.A. 2019. Mapping a Resistance Gene to Puccinia graminis f. sp. tritici in the Bread Wheat Cultivar ‘Matlabas’. Plant Disease 103: 2337 - 2344.

Yekelo, N., L. Rothmann, C.M. Bender, Z.A. Pretorius and W.H.P. Boshoff. 2019. Response of an international triticale collection to Puccinia triticina and Puccinia recondita and assessment of temperature sensitivity in leaf rust isolates, Cereal Research Communications 47(3): 496-505.

Maree, G.J., Prins, R., Bender, C.M., Boshoff, W.H.P., Negussie, T.G. & Pretorius, Z.A. 2019. Phenotyping Kariega x Avocet S doubled haploid lines containing individual and combined adult plant stripe rust resistance loci. Plant Pathology 68(4): 659-668.

Boshoff, W.H.P., Prins, R., De Klerk, C., Krattinger, S.G., Bender, C.M., Maree, G.J., Rothmann, L. & Pretorius, Z.A. 2019. Point inoculation method for measuring adult plant response of wheat to stripe rust infection. Plant Disease 103(6) 1228-1233.

Visser, B., Meyer, M., Park, R., Gilligan, C., Burgin, L.E., Hort, M.C., Hodson, D. and Pretorius, Z.A. 2019. Microsatellite analysis and urediniospore dispersal simulations support the movement of Puccinia graminis f. sp. tritici from southern Africa to Australia. Phytopathology 109: 133-144

Case, A.J., Sridhar Bhavani; Godwin Macharia; Zacharias Petorius; Vicky Coetzee; Frederick Kloppers; Priyanka Tyagi; Gina Brown-Guedira; Brian Steffenson. 2018. Mapping Adult Plant Stem Rust Resistance in Barley Accessions Hietpas-5 and GAW-79. Theoretical and Applied Genetics 131:2245-2266.

Boshoff, W.H.P., Bender, C.M. & Pretorius, Z.A. 2019. Reaction of South African rye, triticale and barley forage cultivars to stem and leaf rust. SA J Plant & Soil 36(2): 77-82 DOI: 10.1080/02571862.2018.1522381.

Boshoff, W.H.P., Pretorius, Z.A., Terefe, T., Bender, C.M., Herselman, L., Maree, G.J. & Visser, B. 2018. Phenotypic and genotypic description of Puccinia graminis f. sp. tritici race 2SA55 in South Africa. European J Plant Pathol. 152(3) 783-789 (

Boshoff, W.H.P., Labuschagne, R., Terefe, T., Pretorius, Z.A. & Visser, B. 2018. New Puccinia triticina races on wheat in South Africa Australasian Plant Pathology 47:325-334.

Lewis, C.M., Persoons, A., Bebber, D.P., Kigathi, R.N., Maintz, J., Findlay, K., Bueno-Sancho, V., Corredor-Moreno, P., Harrington, S.A., Kangara, N., Berlin, A., García, R., Germán, S.E., Hanzalová, A., Hodson, D.P., Hovmøller, M.S., Huerta-Espino, J., Imtiaz, M., Mirza, J.I., Justesen, A.F., Niks, R.E., Omrani, A., Patpour, M., Pretorius, Z.A., Roohparvar, R., Sela, H., Singh, R.P., Steffenson, B., Visser, B., Fenwick, P.M., Thomas, J., Wulff, B.B.H. & Saunders, D.G.O. 2018. Potential for re-emergence of wheat stem rust in the UK. Communications Biology 1:13 DOI: 10.1038/s42003-018-0013-y.

Zurn, J., Matthew Rouse; Shiaoman Chao; Meriem Aoun; Godwin Macharia; Colin Hiebert; Zacharias Pretorius; John Michael Bonman; Maricelis Acevedo. 2018. Dissection of the multigenic wheat stem rust resistance present in the Montenegrin spring wheat accession PI 362698. BMC Genomics 19:67. DOI 10.1186/s12864-018-4438-y.

Soko, T., Bender, C.M., Prins, R. & Pretorius, Z.A. 2018. Yield loss associated with different levels of stem rust resistance in bread wheat. Plant Disease 102: 2531-2538.

Millet, E., Steffenson, B., Sela, H., Allen, A. & Pretorius, Z.A. 2017. Genome targeted introgression of resistance to African stem rust from Aegilops sharonensis into bread wheat. The Plant Genome 10.3 1-11 doi: 10.3835/plantgenome2017.07.0061.

McTaggart, A.R., Beasly, D.R., Wingfield, M.J., Wood, A.R., Pretorius, Z.A., Drenth, A., Shivas, R.G. & Roux, J. 2017. A dynamic, web-based resource to identify rust fungi (Pucciniales) in southern Africa. MycoKeys 26:77-83.

Steffenson, B.J., A. J. Case, Z. A. Pretorius, V. Coetzee, F. J. Kloppers, H. Zhou, Y. Chai, R. Wanyera, S. Bhavani, and S. Grando. 2017. Potential Vulnerability of Barley to African Pathotypes of Puccinia graminis f. sp. tritici and Sources of Resistance. Phytopathology 107:950-962.

Babiker, E.M., T. C. Gordon, S. Chao, M. N. Rouse, R. Wanyera, M. Newcomb, G. Brown-Guedira, Z. A. Pretorius & J. M. Bonman. 2016. Genetic mapping of resistance to the Ug99 race group of Puccinia graminis f. sp tritici in a spring wheat landrace CItr 4311. Theoretical and Applied Genetics 129(11) 2161-2170. doi 10.1007/s00122-016-2764-5.

Hongwei Li, Qi Zheng, Zacharias A. Pretorius, Bin Li, Dingzhong Tang, and Zhensheng Li. 2016. Establishment and characterization of new wheat-Thinopyrum ponticum addition and translocation lines with resistance to Ug99 races. Journal of Genetics and Genomics 43: 573-575. doi: 10.1016/j.jgg.2016.07.04.

Prins, R., S. Dreisigacker, Z. Pretorius, H. van Schalkwyk, E. Wessels, C. Smit, C. Bender, D. Singh, L. A. Boyd. 2016. Stem rust resistance in a geographically diverse collection of spring wheat lines collected from across Africa. Frontiers in Plant Science 7: 973.

Bender, C.M., Prins, R, & Pretorius, Z.A. 2016. Development of a greenhouse screening method for adult plant resistance in wheat to stem rust. Plant Disease 100: 1627-1633.

Pretorius, Z.A., C.X. Lan, R. Prins, V. Knight, N.W. McLaren, R.P. Singh C.M. Bender, & F.J. Kloppers. 2017. Application of remote sensing to identify adult plant resistance loci to stripe rust in two bread wheat mapping populations. Precision Agriculture 18: 411-428. DOI: 10.1007/s11119-016-9461-x.

Terefe, T., Visser, B. & Pretorius, Z.A. 2016. Variation in Puccinia graminis f. sp. tritici detected on wheat and triticale in South Africa from 2009-2013. Crop Protection 86:9-16. DOI 10.1016/j.cropro.2016.04.006.

Rahmatov, M., Matthew Rouse, Staffan Andersson, Brian Steffenson Ruth Wanyera, Zacharias A. Pretorius, Andreas Houben, Nazari Kumarse, Sridhar Bhavani, and Eva Johansson. 2016. Sources of Stem Rust Resistance in Wheat-alien Introgression Lines. Plant Disease 100:1101-1109

Visser, B., Liezel Herselman and Zacharias A. Pretorius. 2016. Microsatellite characterization of South African Puccinia striiformis races. SAJ Plant&Soil 33(3): 161-166.

Babiker, E.M., T. C. Gordon, J. M. Bonman, S. Chao, M. N. Rouse, G. Brown-Guedira, S. Williamson & Z. A. Pretorius. 2016. Rapid identification of resistance loci effective against Puccinia graminis f. sp. tritici race TTKSK in 33 spring wheat landraces. Plant Disease 100:331-336.


Publications (Short List)




Area(s) of Interest


Courses Presented




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T: +27 51 401 2531


Dilahlwane Mohono (Faculty Officer)
T: +27 58 718 5284

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