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Sunday, July 23, 2017

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Maternal effects on phenotype, resistance and the structuring of fungal communities in Eucalyptus grandis
20 June, 2017
The environmental experience of plants can modulate the development of the offspring and their interactions with other organisms. These effects, generally known as maternal effects, occur through seed provisioning and epigenetic modifications. read more
The unified framework for biological invasions: a forest fungal pathogen perspective
5 June, 2017
Biological invasions in forests are growing in number and importance globally. The best studied examples are those caused by plants and animals, including insects. In contrast, forest invasions caused by microbes, including fungi, have received much lower levels of attention... read more
Diversity, phylogeny and pathogenicity of Botryosphaeriaceae on non-native Eucalyptus grown in an urban environment: A case study
10 May, 2017
The Botryosphaeriaceae are opportunistic pathogens mostly of woody plants, including Eucalyptus. These fungi can cause cankers and die-back diseases on non-native Eucalyptus trees in South African plantations. Botryosphaeriaceae were isolated from diseased... read more
The balance of trade in alien species between South Africa and the rest of Africa
26 April, 2017
Alien organisms are not only introduced from one biogeographical region to another but also spread within regions. As South Africa shares land borders with six countries, multiple opportunities exist for the transfer of alien species between South Africa and other African countries... read more
A new Leptographium species from the roots of declining Pinus sylvestris in Switzerland
25 April, 2017
Scots pine (Pinus sylvestris) trees have been declining in the Rhône valley, Switzerland, for almost three decades. In an assessment of the role of fungi in this syndrome, the dominant fungus isolated from stained roots was a Leptographium species, morphologically similar... read more
Classical biological control of insect pests of trees: facts and figures
27 March, 2017
Classical biological control (CBC) is the introduction of a natural enemy of exotic origin to control a pest, usually also exotic, aiming at permanent control of the pest. CBC has been carried out widely over a variety of target organisms, but most commonly against insects... read more
Novel and co-evolved associations between insects and microorganisms as drivers of forest pestilence
23 March, 2017
Abstract Some of the most devastating diseases of trees involve associations between forest insects and microorganisms. Although a small number of native insect-microorganism symbioses can cause tree mortality, the majority of associations with tree health implications involve... read more
Planted forest health: The need for a global strategy
23 March, 2017
Several key tree genera are used in planted forests worldwide, and these represent valuable global resources. Planted forests are increasingly threatened by insects and microbial pathogens, which are introduced accidentally and/or have adapted to new host trees. Globalization has... read more
Antifungal actinomycetes associated with the pine bark beetle, Orthotomicus erosus, in South Africa
14 February, 2017
Actinomycete bacteria are often associated with insects that have a mutualistic association with fungi. These bacteria are believed to be important to this insect-fungus association as they produce antibiotics that exclude other saprophytic fungi from the immediate environment. read more

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