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Involvement of soilborne Phytophthora species in Central European oak decline and the effect of site factors on the disease
TLDR
It is concluded that Phytophthora species are strongly involved in oak decline on sandy-loamy to clayey sites with a mean soil-pH (CaCl2)  3·5.
Phytophthora root and collar rot of alders in Bavaria: distribution, modes of spread and possible management strategies
TLDR
A survey of symptoms of phytophthora root and collar rot of common and grey alder in riparian and forest stands in Bavaria showed that symptoms were widespread along more than 50% of the river systems and along some rivers the disease incidence exceeded 50%.
Re-evaluation of Phytophthora citricola isolates from multiple woody hosts in Europe and North America reveals a new species, Phytophthora plurivora sp. nov.
TLDR
DNA sequence data from the internal transcribed spacer regions, the mitochondrial cox1 and β-tubulin genes were used in combination with morphological and physiological characteristics to characterise these isolates and compare them to the ex-type and the authentic type isolates of P. citricola.
Phytophthora alni sp. nov. and its variants: designation of emerging heteroploid hybrid pathogens spreading on Alnus trees.
TLDR
The problems of designating emergent species hybrids under the International Code of Botanical Nomenclature and the reasons for the taxonomic choices made are discussed.
Isolation, identification and pathogenicity of Phytophthora species from declining oak stands
TLDR
It could be shown in vitro that Phytophthora gonapodyides and Pythium group P were able to produce a wilting toxin.
Beech decline in Central Europe driven by the interaction between Phytophthora infections and climatic extremes
TLDR
Excessive rainfalls and droughts are triggering the disease, and widespread Phytophthora infestations of nursery stock might endanger current and future silvicultural projects aiming on the replacement of non-natural conifer stands by beech dominated mixed stands.
Biogeographical patterns and determinants of invasion by forest pathogens in Europe.
TLDR
A large database of invasive forest pathogens was developed to investigate the patterns and determinants of invasion in Europe, finding thatEradication seems impossible, and prevention seems the only reliable measure, although this will be difficult in the face of global mobility.
Phytophthora multivora sp. nov., a new species recovered from declining Eucalyptus, Banksia, Agonis and other plant species in Western Australia
TLDR
A new Phytophthora species, isolated from rhizosphere soil of declining or dead trees of Eucalyptus gomphocephala, E. marginata, Agonis flexuosa, and another 13 plant species, and from fine roots of E. marginsata, phylogenetic analyses of the ITS and cox1 gene regions demonstrate that P. multivora is unique.
Phytophthora quercina sp. nov., causing root rot of European oaks
TLDR
In a 3 year study of oak decline in Central and Southern Europe, a papillate homothallic Phytophthora species was isolated consistently from necrotic fine roots by direct plating on to selective agar medium and from rhizosphere soil samples by baiting with leaves of Quercus robur.
Multiple new Phytophthora species from ITS Clade 6 associated with natural ecosystems in Australia: evolutionary and ecological implications
TLDR
Both new species are common in waterways and cause scattered mortality within native vegetation and appear well adapted for survival in an aquatic environment and inundated soils, filling the niche occupied by P. gonapodyides and P. taxon salixsoil in the northern hemisphere.
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