Browsing Research Articles (Plant Production and Soil Science) by UP Author "Roux, Jolanda"

Browsing Research Articles (Plant Production and Soil Science) by UP Author "Roux, Jolanda"

Sort by: Order: Results:

  • Arbuscular mycorrhizal fungi persist in dying Euphorbia ingens trees 
    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 ...
  • Armillaria root rot spreading into a natural woody ecosystem in South Africa 
    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 ...
  • Armillaria root rot threatens Cameroon’s Penja pepper (Piper nigrum L.) 
    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 ...
  • An artificial inoculation protocol for Uromycladium acaciae, cause of a serious disease of Acacia mearnsii in southern Africa 
    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 ...
  • An assessment of mangrove diseases and pests in South Africa 
    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 ...
  • Botryosphaeriaceae on Syzygium cordatum across a latitudinal gradient in South Africa 
    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 ...
  • Calonectria species isolated from Eucalyptus plantations and nurseries in South China 
    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 ...
  • Ceratocystis wilt on Eucalyptus : first record from South Africa 
    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 ...
  • Community composition and distribution of Phytophthora species across adjacent native and non-native forests of South Africa 
    Bose, Tanay; Wingfield, Michael J.; Roux, Jolanda; Vivas, Maria; Burgess, Treena I. (Elsevier, 2018-12)
    The diversity of Phytophthora species associated with various ecological niches is poorly understood. In this study, the community composition and distribution of Phytophthora species associated with non-native plantation ...
  • Continuous replanting could degrade soil health in short-rotation plantation forestry 
    Bose, Tanay; Hammerbacher, Almuth; Slippers, Bernard; Roux, Jolanda; Wingfield, Michael J. (Springer, 2023-08)
    PURPOSE OF REVIEW : Continuous replanting of land with the same or similar plant species can result in the accumulation of harmful soil microbes, which can lead to crop failure. In this review, we explore the influence of ...
  • Cryphonectriaceae associated with rust-infected Syzygium jambos in Hawaii 
    Roux, Jolanda; Nkuekam, Gilbert Kamgan; Marincowitz, Seonju; Van der Merwe, Nicolaas Albertus (Albie); Uchida, Janice; Wingfield, Michael J.; Chen, ShuaiFei (Pensoft Publishers, 2020-12-31)
    Syzygium jambos (Myrtales, Myrtaceae) trees in Hawaii are severely affected by a rust disease caused by Austropuccinia psidii (Pucciniales, Sphaerophragmiaceae), but they are commonly co-infected with species of Cryphonectriaceae ...
  • Diseases of eucalypts in Paraguay and first report of Teratosphaeria zuluensis from South America 
    Silva, Ximena; Roux, Jolanda; Asiegbu, Fred O. (MDPI, 2020-09)
    BACKGROUND AND OBJECTIVES: The global forest economy is threatened by eucalypt pathogens which are often latent or cryptic species that escape common quarantine and detection methods. Plantation forestry using eucalypts ...
  • A dynamic, web-based resource to identify rust fungi (Pucciniales) in southern Africa 
    McTaggart, Alistair R.; Beasley, Dean R.; Wingfield, Michael J.; Wood, Alan R.; Pretorius, Zakkie A.; Drenth, Andre; Shivas, Roger G.; Roux, Jolanda (Pensoft Publishers, 2017-09-15)
    Rust fungi (Pucciniales) are some of the most important plant pathogens that cause diseases of agricultural and tree crops. There are approximately 8,000 described species worldwide. The rust fungi of South Africa were ...
  • Effect of temperature, leaf wetness and the developmental stage of host tissue on infection of Acacia mearnsii by Uromycladium acaciae (Pucciniales) 
    Fraser, Stuart; McTaggart, Alistair R.; Wingfield, Michael J.; Roux, Jolanda (Springer, 2017-09)
    Uromycladium acaciae causes a serious rust disease in plantations of non-native Acacia mearnsii (black wattle) in South Africa. Little is known about the biology of U. acaciae, making disease control difficult. Germination ...
  • Endophytic Botryosphaeriaceae, including five new species, associated with mangrove trees in South Africa 
    Osorio, J. Alexander; Crous, Casparus J.; De Beer, Z. Wilhelm; Wingfield, Michael J.; Roux, Jolanda (Elsevier, 2017-04)
    Little is known regarding the fungi, especially fungal pathogens, associated with mangroves in Africa. This includes fungi in the Botryosphaeriaceae that comprise numerous opportunistic, stress-associated pathogens often ...
  • Eucalyptus scab and shoot malformation : a new disease in South Africa caused by a novel species, Elsinoe masingae 
    Roux, Jolanda; Wingfield, Michael J.; Marincowitz, Seonju; Solis, Myriam; Phungula, Siphephelo Mnqobi; Pham, Nam Q. (Oxford University Press, 2024-04)
    A serious new disease of Eucalyptus was detected in South African plantations of these trees during the summer of 2021/2022. The first symptoms are minute dark spots on young leaves, petioles and shoots, becoming scab-like ...
  • The Eucalyptus stem canker pathogen Teratosphaeria zuluensis detected in seed samples 
    Jimu, L.; Kemler, Martin; Wingfield, Michael J.; Mwenje, Eddie; Roux, Jolanda (Oxford University Press, 2016-07)
    The global spread of Eucalyptus pathogens is thought to be facilitated by the trade in seed for the establishment of new plantations and breeding programmes. In this study we used highthroughput amplicon sequencing to ...
  • Fungal Planet description sheets : 1182–1283 
    Crous, Pedro W.; Cowan, Don A.; Maggs-Kolling, G.; Yilmaz, Neriman; Thangavel, R.; Wingfield, Michael J.; Noordeloos, M.E.; Dima, B.; Brandrud, T.E.; Jansen, G.M.; Morozova, Olga V.; Vila, J.; Shivas, R.G.; Tan, Y.P.; Bishop-Hurley, S.; Lacey, E.; Marney, T.S.; Larsson, E.; Le Floch, G.; Lombard, L.; Nodet, P.; Hubka, V.; Alvarado, P.; Berraf-Tebbal, A.; Reyes, J.D.; Delgado, G.; Eichmeier, A.; Jordal, J.B.; Kachalkin, A.V.; Kubatova, A.; Macia-Vicente, J.G.; Malysheva, E.F.; Papp, V.; Rajeshkumar, K.C.; Sharma, A.; Spetik, M.; Szaboova, D.; Tomashevskaya, M.A.; Abad, J.A.; Abad, Z.G.; Alexandrova, A.V.; Anand, G.; Arenas, F.; Ashtekar, N.; Balashov, S.; Banares, A.; Baroncelli, R.; Bera, I.; Biketova, A.YU; Blomquist, C.L.; Boekhout, T.; Boertmann, D.; Bulyonkova, T.M.; Burgess, T.I.; Carnegie, A.J.; Cobo-Diaz, J.F.; Corriol, G.; Cunnington, J.H.; Da Cruz, M.O.; Damm, U.; Davoodian, N.; Santiago, A.L.C.M. de A.; Dearnaley, J.; De Freitas, L.W.S.; Dhileepan, K.; Dimitrov, R.; Di Piazza, S.; Fatima, S.; Fuljer, F.; Galera, H.; Ghosh, A.; Giraldo, A.; Glushakova, A.M.; Gorczak, M.; Gouliamova, D.E.; Gramaje, D.; Groenewald, M.; Gunsch, C.K.; Gutierrez, A.; Holdom, D.; Houbraken, J.; Ismailov, A.B.; Istel, L.; Iturriaga, T.; Jeppson, M.; Jurjevic, Z.; Kalinina, L.B.; Kapitonov, V.I.; Kautmanova, I.; Khalid, A.N.; Kiran, M.; Kiss, L.; Kovacs, A.; Kurose, D.; Kusan, I.; Lad, S.; Læssoe, T.; Lee, H.B.; Luangsa-ard, J.J.; Lynch, M.; Mahamedi, A.E.; Malysheva, V.F.; Mateos, A.; Matocec, N.; Mesic, A.; Miller, A.N.; Mongkolsamrit, S.; Moreno, G.; Morte, A.; Mostowfizadeh-Ghalamfarsa, R.; Naseer, A.; Navarro-Rodenas, A.; Nguyen, T.T.T.; Noisripoom, W.; Ntandu, J.E.; Nuytinck, J.; Ostry, V.; Pankratov, T.A.; Pawłowska, J.; Pecenka, J.; Pham, Thi Ha Giang; Polhorsky, A.; Posta, A.; Raudabaugh, D.B.; Reschke, K.; Rodríguez, A.; Romero, M.; Rooney-Latham, S.; Roux, Jolanda; Sandoval-Denis, M.; Smith, M.Th.; Steinrucken, T.V.; Svetasheva, T.Y.; Tkalcec, Z.; Van der Linde, E.J.; Vegte, M.v.D.; Vauras, J.; Verbeken, A.; Visagie, Cobus M.; Vitelli, J.S.; Volobuev, S.V.; Weill, A.; Wrzosek, M.; Zmitrovich, I.V.; Zvyagina, E.A.; Groenewald, Johannes Zacharias (Naturalis Biodiversity Center and Centraalbureau voor Schimmelcultures, 2021-06)
    Novel species of fungi described in this study include those from various countries as follows: Algeria, Phaeoacremonium adelophialidum from Vitis vinifera. Antarctica, Comoclathris antarctica from soil. Australia, Coniochaeta ...
  • High genetic diversity of Fusarium circinatum associated with the first outbreak of pitch canker on Pinus patula in South Africa 
    Fru, Felix Fon; Steenkamp, Emma Theodora; Wingfield, Michael J.; Roux, Jolanda (NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group), 2019)
    The disease known as pitch canker results from infection of Pinus species by the fungus Fusarium circinatum. This fungus also causes a serious root disease of Pinus seedlings and cuttings in forestry nurseries. Pinus radiata ...
  • Hybrid vigor in Eucalyptus increases resistance against Phytophthora root rot 
    Bose, Tanay; Hammerbacher, Almuth; Jones, Wayne; Roux, Jolanda; Slippers, Bernard; Wingfield, Michael J. (Springer, 2023-04)
    Eucalyptus nitens is a cold-tolerant eucalypt that is native to Eastern Australia. Pure E. nitens as well as its hybrids, such as Eucalyptus grandis × Eucalyptus nitens, is propagated commercially in various regions of ...