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FIRST GENOME SEQUENCE OF A PLANT PATHOGEN IN AFRICA |
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Prof. Teresa Coutinho
Dept of Microbiology and Plant Pathology
Forestry and Agricultural Biotechnology Institute (FABI)
University of Pretoria
Contact information:
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Pantoea ananatis is the causal agent of bacterial blight and die-back of young eucalypts in South Africa. This bacterium causes spots on the leaves which often coalesce to form larger lesions. Shoot tip die-back may also occur. The disease is particularly problematic in nurseries and mainly on E. grandis x E. nitens clones. |
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Sabbatical visit of Prof. W.E. Fry at the Department of Plant Pathology, Stellenbosch University |
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Prof. William (Bill) E. is currently (October 2007 to May 2008) on sabbatical visit at the Department of Plant Pathology, Stellenbosch University. Bill Fry has contributed a great deal to plant pathology and science, and was one of 2000 highly cited investigators worldwide in 2005. His successful research career is reflected in his author/co-authorship of four books, more than 137 research papers in refereed journals, 28 book chapters and more than 87 abstract of papers presented at meetings. |
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Using DNA sequence data to characterise fungal pathogens of trees |
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Gavin Hunter CBS Fungal Biodiversity Centre
Uppsalalaan 8
3584 CT, Utrecht
The Netherlands
E-mail:
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Just as humans, trees are susceptible to infection by many disease causing micro-organisms. A large and perhaps the majority of microbial pathogens from trees are fungi. These fascinating organisms can infect the roots, stems and leaves of trees resulting in a wide array of disease symptoms. In severe cases, fungi can also cause the death of infected trees. |
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Stem rust of wheat – a forgotten threat returns… |
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Ida Paul
Plant Pathologist
Small Grain Institute
Stellenbosch
Email:
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Stem rust, caused by Puccinia graminis Pers. f. sp. tritici Eriks. & E. Henn., is a highly damaging disease of wheat that primarily occurs in warm weather and can cause great damage to susceptible wheat crops. Symptoms include raised orange to red pustules that occur on leaves, leaf sheaths, stems and ears of susceptible cultivars. The masses of urediniospores appear similar to rust on a weathered iron surface. In time these pustules turn black. |
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A closer look at the fungi causing Petri disease and esca of grapevines |
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Lizel Mostert
Department of Plant Pathology
University of Stellenbosch
Stellenbosch Email:
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Petri disease and esca are serious diseases of young and old vines in most countries where grapevines (Vitis spp.) are cultivated. |
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A dieback disease of Rooikrans |
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Alan R. Wood
ARC-PPRI
Private Bag X5017
Stellenbosch
7599
South Africa Email:
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During the 1980’s a dieback disease of the invasive alien weed Rooikrans was noted in the Groot Brak (Mossel Bay) area in the southern Cape.
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