Horizontal chromosome transfer introduces host-specific pathogenicity among members of the Fusarium oxysporum species complex and is responsible for some of the most destructive and intractable plant diseases. This paper reports the genome sequence of F. oxysporum f. sp. melonis (NRRL 26406), a causal agent of Fusarium wilt disease on melon.

Gordon, T. R., Okamoto, D., and Jacobson, D. J. 1989. Colonization of muskmelon and nonsusceptible crops by Fusarium oxysporum f. sp. melonis and other species of Fusarium. Phytopathology 79:4095-1100. The ability of Fusarium oxysporum f. sp. melonis to colonize roots abundance of the four fungi was similar on all seven crops; nonpathoof a susceptible muskmelon cultivar and six crop species rot...

Plectosphaerella cucumerina, most frequently encountered in its Plectosporium state, is well known as a pathogen of several plant species causing fruit, root and collar rot, and collapse. It is considered to pose a serious threat to melon (Cucumis melo) production in Italy. In the present study, an intensive sampling of diseased cucurbits as well as tomato and bell pepper was done and the funga...

Marcus Chibucos (Virginia Bioinformatics Institute) [Phytophthora sojae and Phytophthora ramorum] Candace Collmer (Wells College) [Pseudomonas syringae] Jeremy D. Glasner (University of Wisconsin) [Erwinia crysanthemi] Michelle Gwinn Giglio (TIGRWorkshop organizer) [Prokaryote] Linda Hannick (TIGR) [Eukaryote] Rays Jiang (Virginia Bioinformatics Institute) [Phytophthora sojae and Phytophthora r...

BACKGROUND Phytophthora is the most important genus of the Oomycete plant pathogens. Nowadays, there are 117 described species in this genus, most of them being primary invaders of plant tissues. The different species are causal agents of diseases in a wide range of crops and plants in natural environments. In order to develop control strategies against Phytophthoraspecies, it is important to k...

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...

Phytophthora nicotianae is one of the most destructive plant pathogens affecting a variety of plants, causing black shank of tobacco, among several other devastating diseases. Herein, we assembled the mitochondrial genome of P. nicotianae and analyzed its gene content and genome structure, performed comparative mitochondrial genomics analysis, and assessed phylogenetic relationships among oomyc...