Erysiphales are an order of ascomycete fungi. The order contains one family, Erysiphaceae. Many of them cause plant diseases called powdery mildew.
Leveillula taurica is an obligate fungal pathogen, from the phylum Ascomycota, which causes powdery mildew on onion. This disease prefers warm, dry environments. It is rare in the United States, and is currently restricted to western states. Globally, it is also a minor problem with limited occurrences in the Middle East, Europe, and South America. L. taurica causes powdery mildew of onions, but is also known to infect other allium, solanaceous, and cucurbit species. The disease has appeared in parts of the Middle East, the Mediterranean, and South and North America. Currently, it is not a cause for major concern in the U.S. and throughout the world, as its geographic extent is sparse. In addition, it is relatively easy to control through basic sanitation and reducing water stress.
Phyllactinia guttata is a species of fungus in the family Erysiphaceae; the anamorph of this species is Ovulariopsis moricola. A plant pathogen distributed in temperate regions, P. guttata causes a powdery mildew on leaves and stems on a broad range of host plants; many records of infection are from Corylus species, like filbert and hazel. Once thought to be conspecific with Phyllactinia chorisiae, a 1997 study proved that they are in fact separate species.
The Mycosphaerellaceae are a family of sac fungi. They affect many common plants, such as eucalyptus, the myrtle family, and the Proteaceae. They have a widespread distribution.
Sawadaea is a genus of fungi in the family Erysiphaceae. The widespread genus contains nine species. One more species was added in 2011.
Erysiphe alphitoides is a species of fungus which causes powdery mildew on oak trees.
Pestalotiopsis is a genus of ascomycete fungi in the Sporocadaceae family.
This microRNA database and microRNA targets databases is a compilation of databases and web portals and servers used for microRNAs and their targets. MicroRNAs (miRNAs) represent an important class of small non-coding RNAs (ncRNAs) that regulate gene expression by targeting messenger RNAs.
Stenella is a genus of anamorphic fungi in the family Mycosphaerellaceae. The widespread genus contained about 155 species in 2008.
Phaeoramularia is a genus of fungi in the family Mycosphaerellaceae. It was circumscribed in 1960.
Cercosporella is a fungus genus in the family Mycosphaerellaceae.
Golovinomyces is a genus of fungi in the family Erysiphaceae. It has 66 species. Many of the species cause powdery mildew. Golovinomyces was originally circumscribed in 1978 by Uwe Braun as a section of genus Erysiphe. It was promoted to distinct genus status in 1988.
Passalora is a genus of fungi in the family Mycosphaerellaceae. It has about 250 species.
Golovinomyces orontii is a species of fungus that causes powdery mildew disease and it is in the family Erysiphaceae. It is an obligate biotroph that infects plants in several families including Acanthaceae, Asteraceae, Brassicaceae, Cucurbitaceae, and Lamiaceae.
Erysiphe platani, also known as sycamore powdery mildew, is a fungus native to North America that now infects sycamore tree species worldwide. Infections may spread rapidly in urban settings with large groups of young trees or in plant nurseries. This mildew thrives when there are high humidity conditions during the growing season.
