Phytophthora chlamydospora

Real-time PCR detection of Phaeomoniella chlamydospora and Phaeoacremonium aleophilum.

Phaeomoniella chlamydospora and Phaeoacremonium aleophilum are the two main fungal causal agents of Petri disease and esca. Both diseases cause significant economic losses to viticulturalists. Since no curative control measures are known, proactive defensive measures must be taken. An important aspect of current research is the development of sensitive and time-saving protocols for the detectio...

Cutaneous alternariosis due to Alternaria chlamydospora after bone marrow transplantation.

In June 1994, a 33-year-old man was diagnosed with chronic myelogenous leukaemia. In November 1995, he underwent an allogeneic BMT from an unrelated donor. Three months later, a slightly itchy erythematous papule appeared on his left leg. During the following days, 2 similar lesions developed on his left thigh and right arm (Fig. 1). The lesions increased a little in size and the centre of the ...

Phytophthora ramorum

Nothophytophthora gen. nov., a new sister genus of Phytophthora from natural and semi-natural ecosystems

During various surveys of Phytophthora diversity in Europe, Chile and Vietnam slow growing oomycete isolates were obtained from rhizosphere soil samples and small streams in natural and planted forest stands. Phylogenetic analyses of sequences from the nuclear ITS, LSU, β-tubulin and HSP90 loci and the mitochondrial cox1 and NADH1 genes revealed they belong to six new species of a new genus, of...

Phytophthora borealis and Phytophthora riparia, new species in Phytophthora ITS Clade 6.

Phytophthora borealis and Phytophthora riparia, identified in recent Phytophthora surveys of forest streams in Oregon, California and Alaska, are described as new species in Phytophthora ITS Clade 6. They are similar in growth form and morphology to P. gonapodyides and are predominantly sterile. They present unique DNA sequences, however, and differ in temperature/growth relations and geographi...