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Browsing by UP Author "Roux, Jolanda"
Now showing items 1-20 of 124
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Six, Diana L.; Poulsen, Michael; Hansen, Allison K.; Wingfield, Michael J.; Roux, Jolanda; Eggleton, Paul; Slippers, Bernard; Paine, Timothy D. (Springer, 2011)The influence of humans on ecosystem dynamics has been, and continues to be, profound. Anthropogenic effects are expected to amplify as human populations continue to increase. Concern over these effects has given rise to ...
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Vivas, Maria; Crous, C.J.; Dames, J.F.; Van der Linde, Johannes Alwyn; Coetzee, Martin Petrus Albertus; Roux, Jolanda (Elsevier, 2018-03)Forest declines have been reported with increasing regularity during the last decade and are expected to increase due to the ongoing environmental changes. During adverse environmental conditions, plant symbioses with ...
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Coetzee, Martin Petrus Albertus; Musasira, N.Y.; Roux, Jolanda; Roets, F.; Van der Merwe, Nicolaas Albertus (Albie); Wingfield, Michael J. (Wiley, 2018-05)Signs and symptoms of a disease similar to those of armillaria root rot have recently been observed on various native woody plants on the foothills of Table Mountain in South Africa, one of the most botanically diverse ...
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Tigang, Sandrine Petchayo; Tchotet Tchoumi, James Michel; Roux, Jolanda; Nguefack, Julienne; Begoude Boyogueno, Aime Didier; Mbenoun, Michael; Mfegue, Crescence Virginie; Nyasse, Salomon; Nkeng, Michel Ndoumbe; Ten Hoopen, Gerben Martijn (Sociedade Brasileira de Fitopatologia, 2020-10)Penja pepper (Piper nigrum) produced in Cameroon has long been recognized for its exceptional organoleptic quality. The pepper vine is grown using a support tree (Spondias mombin) in Cameroon. A root disease is associated ...
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Fraser, Stuart; McTaggart, Alistair R.; Chan, Julian Moreno; Nxumalo, Thobile; Shuey, Louise S.; Wingfield, Michael J.; Roux, Jolanda (NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group), 2019)Uromycladium acaciae is the cause of a severe wattle rust epidemic in plantations of Acacia mearnsii (black wattle) in southern Africa. Research on the biology of this damaging rust is assisting in the development of control ...
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Osorio, J. Alexander; Crous, Casparus J.; Wingfield, Michael J.; De Beer, Z. Wilhelm; Roux, Jolanda (Oxford University Press, 2017-05)Mangroves are critically important components of coastal ecosystems. However, their survival is globally threatened, mostly due to impacts resulting from human activities. Reports of mangrove deaths associated with pathogens ...
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Begoude, Didier (Aime Didier B.); Gryzenhout, Marieka; Wingfield, Michael J.; Roux, Jolanda (Springer, 2010-10)Native Terminalia spp. in West Africa provide a popular source of construction timber as well as medical, spiritual and social benefits to rural populations. Very little is, however, known regarding the diseases that affect ...
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Machingambia, Netsai M.; Roux, Jolanda; Dreyer, Leanne Laurette; Roets, Francois (Elsevier, 2014-05)Bark and ambrosia beetles are ecologically and economically important phloeophagous insects that often have complex symbiotic relationships with fungi and mites. These systems are greatly understudied in Africa. In the ...
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Doilom, Mingkwan; Shuttleworth, L.A. (Lucas); Roux, Jolanda; Chukeatirote, Ekachai; Hyde, Kevin D. (Magnolia Press, 2014-08)Tectona grandis (teak) is an increasingly important timber resource globally. It is native to Asia, including Thailand. In this paper a new species of Barriopsis, B. tectonae sp. nov., is described from a dead T. grandis ...
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Mehl, James William Montague; Slippers, Bernard; Roux, Jolanda; Wingfield, Michael J. (Wiley, 2014-10)Die-back of Schizolobium parahyba var. amazonicum is a serious problem in plantations of these trees in Ecuador. Similar symptoms have also been observed on trees of this species in various parts of South Africa. The most ...
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Mehl, James William Montague; Slippers, Bernard; Roux, Jolanda; Wingfield, Michael J. (The Mycological Society of America, 2011-05)There have been several recent reports of Pterocarpus angolensis (kiaat) trees dying in South Africa, Zambia and Zimbabwe, where this tree is used in traditional medicine and is a valuable source of timber for woodcarving ...
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Doilom, Mingkwan; Shuttleworth, L.A. (Lucas); Roux, Jolanda; Chukeatirote, Ekachai; Hyde, Kevin D. (Magnolia Press, 2015-10-30)Tectona grandis (teak) is one of the most important economic timbers worldwide. Limited studies exist on the potential pathogens of these trees. Fungi in the Botryosphaeriaceae are cosmopolitan opportunistic pathogens, ...
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Begoude, Didier (Aime Didier B.); Slippers, Bernard; Wingfield, Michael J.; Roux, Jolanda (Springer, 2010-03)Species in the Botryosphaeriaceae represent some of the most important fungal pathogens of woody plants. Although these fungi have been relatively well studied on economically important crops, hardly anything is known ...
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Vivas, Maria; Mehl, James William Montague; Wingfield, Michael J.; Roux, Jolanda; Slippers, Bernard (Elsevier, 2021-09)The Botryosphaeriaceae is a family of endophytic fungi, many of which are latent pathogens of woody plants. Although extensively sampled in some parts of the world, little is known regarding their occurrence across different ...
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Li, JieQiong; Wingfield, Michael J.; Liu, QianLi; Barnes, Irene; Roux, Jolanda; Lombard, Lorenzo; Crous, Pedro W.; Chen, ShuaiFei (International Mycological Association, 2017-10-17)Diseases caused by species of Calonectria (Ca.) represent a serious threat to the growth and sustainability of Eucalyptus plantations in China. Symptoms caused by these fungi mainly include leaf blight on trees in ...
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Heath, R.N. (Ronald Natale); Wingfield, Michael J.; Wingfield, Brenda D.; Meke, G.; Mbaga, A.; Roux, Jolanda (Kunming University of Science and Technology, P.R. China, 2009-01)A survey of Ceratocystis species infecting wounds on non-native Acacia mearnsii and Eucalyptus spp. in Kenya, Malawi, South Africa and Tanzania resulted in the identification of eight species of which six were new to ...
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Kamgan-Nkuekam, Gilbert; Wingfield, Michael J.; Mohammed, Caroline; Carnegie, Angus J.; Pegg, Geoffrey S.; Roux, Jolanda (Springer Science+Business Media B.V., 2012-02)The genus Ceratocystis includes important fungal pathogens of trees, including Eucalyptus spp. Ironically, very little is known regarding the diversity or biology of Ceratocystis species on Eucalyptus species in ...
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Nkuekam, Gilbert Kamgan; Wingfield, Michael J.; Roux, Jolanda (Springer, 2013-03)The ascomycete genus Ceratocystis (Microascales, Ceratocystidaceae) includes important fungal pathogens of trees, including Eucalyptus species. Ceratocystis species and their Thielaviopsis asexual states are typically ...
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Roux, Jolanda; Wingfield, Michael J.; Fourie, Arista; Noeth, K.; Barnes, Irene (NISC (Pty) Ltd and Informa UK Limited (trading as Taylor and Francis Group), 2020)Wilt and death of an E. grandis × E. urophylla variety was recently observed in the Zululand region of KwaZulu-Natal, South Africa. Symptoms on the dying trees included a streaking pattern of discolouration in the sapwood ...
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Chen, ShuaiFei; Pavlic-Zupanc, Draginja; Roux, Jolanda; Slippers, Bernard; Xie, YaoJian; Wingfield, Michael J.; Zhou, Xudong (Wiley-Blackwell, 2011)The Botryosphaeriaceae is a species-rich family that includes pathogens of a wide variety of trees, including Eucalyptus species. Symptoms typical of infection by the Botryosphaeriaceae have recently been observed in ...
Now showing items 1-20 of 124