Publications by authors named "M Mullett"
Article Synopsis
- Dothistroma septosporum and Dothistroma pini are harmful pathogens that attack conifers, particularly pine trees, leading to severe damage such as needle loss and tree death.
- A study conducted on various Dothistroma isolates revealed the presence of viral dsRNA segments in some strains, indicating the potential for mycoviruses to help control these pathogens.
- Thirteen new potential viruses were identified, including a range of RNA virus types, with one being a narnavirus specifically associated with D. pini, marking the first virus discovered in this species.
Phytophthora pseudosyringae is a self-fertile pathogen of woody plants, particularly associated with tree species from the genera Fagus, Notholithocarpus, Nothofagus and Quercus, which is found across Europe and in parts of North America and Chile. It can behave as a soil pathogen infecting roots and the stem collar region, as well as an aerial pathogen infecting leaves, twigs and stem barks, causing particular damage in the United Kingdom and western North America. The population structure, migration and potential outcrossing of a worldwide collection of isolates were investigated using genotyping-by-sequencing.
View Article and Find Full Text PDFThe international plant trade results in the accidental movement of invasive pests and pathogens, and has contributed significantly to recent range expansion of pathogens including Seeds are usually thought to present a lower biosecurity risk than plants, but the importation of seeds from North America to Britain in the mid-1900s, and similarities between British and Canadian populations suggests seeds could be a pathway. has not been isolated from seeds, but inadequately cleaned seed material could contain infected needle fragments. This case study investigated whether cone kilning, and wet and dry heat treatments could reduce transmission without damaging seed viability.
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- European forests are facing threats from invasive pests and pathogens, particularly a foliar pathogen that causes brown spot needle blight, leading to tree defoliation and mortality.
- The pathogen has spread globally, originating from southern North America and being first discovered in Spain in 1942, and it has been shown to have a wide climatic tolerance and host range across various regions.
- A study has compiled data into an open-access geo-database to map the distribution of the pathogen in Europe, indicating that it could potentially affect a large proportion of global tree species areas by the century's end due to climate change.
Dothistroma needle blight (DNB) is an important disease of species that can be caused by one of two distinct but closely related pathogens; and . has a wide geographic distribution and is relatively well-known. In contrast, is known only from the United States and Europe, and there is a distinct lack of knowledge regarding its population structure and genetic diversity.
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