Numerous CTHB projects aim to improve our understanding regarding the biology and ecology of the microbes and insects associated with woody hosts indigenous to South Africa.

The tree species receiving most attention are Syzygium cordatum, Syzygium guineense, Acacia karroo, Acacia mellifera, Acacia erioloba, Adansonia digitata, Pterocarpus angolensis, Sclerocarya birrea, Rapanea melanophloeos, Colophospermum mopane, Aloe plictilis and species in the Proteaceae, Rutaceae, Rubiaceae and the genera Virgillia and Terminalia.

The specific microbes that are targeted include species in the Botryosphaeriaceae, Cryphonectriaceae and Uredinales (Ravenelia, Puccinia and Uromyces), as well as the genera Armillaria, Ganoderma, Fusarium, Mycosphaerella, Phellinus, Ceratocystis, Gondwanamyces, Coniothyrium (Colletogloeopsis / Phaeophleospora / Kirramyces), Cylindrocladium, Dothistroma, Pantoea, Ophiostoma, Candidatus Liberibacter africanus and Phytophthora.

The insects currently receiving most attention include bark beetles, bruchid beetles, as well as Coryphodema tristis and a number of species that could possibly be used in biocontrol programmes.

Various CTHB projects also consider the ecology and population biology of specific tree species to evaluate the effect that human practices (e.g. timber harvesting, coppicing, bark stripping, etc.) might have on the target plant, ecosystems and the conservation of natural habitats. Many further focus on the possible impacts that soil properties, nutrients, rhizobial symbioses and climatic factors might have on the invasiveness of certain species in diverse landscapes. A small number of projects also aim to investigate the effects that drought, frost and fire might have on the sustainable usage of indigenous woody resources.

New Publications

Kanzi AM, Steenkamp ET, Van der Merwe NA, Wingfield BD. (2019) The mating system of the Eucalyptus canker pathogen Chrysoporthe austroafricana and closely related species. Fungal Genetics and Biology 123:41-52. 10.1016/j.fgb.2018.12.001 PDF
Wingfield BD, Kolarik M, Menzies JG, Naidoo K, Pochopski O, Shoukouhi P, Santana QC, Seifert KA, Soal NA, Steenkamp ET, Tatham CT, Van der Nest MA, Havenga M, Findlay W, Liu M, Nguyen HDT, Lane FA, Morgan SW, De Vos L, Wilken PM, Doung TA, Aylward J, Coetzee MPA, Dadej K, De Beer ZW, Wingfield MJ. (2018) Nine draft genome sequences of Claviceps purpurea s.lat., including C. arundinis, C. humidiphila, and C. cf. spartinae, pseudomolecules for the pitch canker pathogen Fusarium circinatum, draft genome of Davidsoniella eucalypti, Grosmannia galeiformis, Quambalaria eucalypti, and Teratosphaeria destructans. IMA Fungus 9(2):401-418. 10.5598/imafungus.2018.09.02.10 PDF
Ebinghaus M, Maier W, Wingfield MJ. (2018) New host associations and a novel species for the gall-inducing Acacia rust genus Ravenelia in South Africa. MycoKeys (43):1-21. 10.3897/mycokeys.43.25090
Lee SR, Lee D, Yu JS, Benndorf R, Lee D-S, Huh J, de Beer ZW, Kim YH, Beemelmanns C, Kang KS, Kim KH. (2018) Natalenamides A–C, Cyclic Tripeptides from the Termite-Associated Actinomadura sp. RB99. Molecules 23(11) 10.3390/molecules23113003
Liu FF, Li GQ, Roux J, Barnes I, Wilson AM, Wingfield MJ, Chen SF. (2018) Nine novel species of Huntiella from southern China with three distinct mating strategies and variable levels of pathogenicity. Mycologia 10.1080/00275514.2018.1515450 PDF