| Ascochyta medicaginicola | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Dothideomycetes |
| Order: | Pleosporales |
| Family: | Didymellaceae |
| Genus: | Ascochyta |
| Species: | A. medicaginicola |
| Binomial name | |
| Ascochyta medicaginicola Q. Chen & L. Cai | |
| Synonyms | |
Ascochyta medicaginicola (syn. Phoma medicaginis) [1] is a plant pathogen infecting alfalfa and Medicago truncatula. One particular disease is spring black stem.
Ascochyta tarda or Phoma tarda is a fungal plant pathogen that causes dieback and leafspot on coffee and was first observed in Ethiopia in 1954. It poses a potentially serious threat to coffee crops, but climate change may reduce the prevalence of environmental conditions favorable to its spread.
Ascochyta tritici is a fungal plant pathogen that causes Ascochyta leaf spot on barley, wheat and maize.
Ascochyta is a genus of ascomycete fungi, containing several species that are pathogenic to plants, particularly cereal crops. The taxonomy of this genus is still incomplete. The genus was first described in 1830 by Marie-Anne Libert, who regarded the spores as minute asci and the cell contents as spherical spores. Numerous revisions to the members of the genus and its description were made for the next several years. Species that are plant pathogenic on cereals include, A. hordei, A. graminea, A. sorghi, A. tritici. Symptoms are usually elliptical spots that are initially chlorotic and later become a necrotic brown. Management includes fungicide applications and sanitation of diseased plant tissue debris.
Didymella pinodes is a hemibiotrophic fungal plant pathogen and the causal agent of ascochyta blight on pea plants. It is infective on several species such as Lathyrus sativus, Lupinus albus, Medicago spp., Trifolium spp., Vicia sativa, and Vicia articulata, and is thus defined as broadrange pathogen.
Didymella rabiei, commonly called chickpea ascochyta blight fungus, is a fungal plant pathogen of chickpea. Didymella rabiei is the teleomorph of Ascochyta rabiei, which is the anamorph, but both names are the same species.
Neocamarosporium betae is a plant pathogen infecting Beta vulgaris (beet) and causes Phoma leaf spot. It was originally published and described in 1877 as Pleospora betae before being resolved as Neocamarosporium betae(Berl.) Ariyaw. & K.D. Hyde in 2015. It also causes leaf spot on Spinach plants.
Didymella arachidicola is a plant pathogen.
Stagonosporopsis trachelii is a fungal plant pathogen that causes Ascochyta leaf spot in Campanula species.
Ascochyta pisi is a fungal plant pathogen that causes ascochyta blight on pea, causing lesions of stems, leaves, and pods. These same symptoms can also be caused by Ascochyta pinodes, and the two fungi are not easily distinguishable.
Didymella pinodella is a fungal plant pathogen infecting pea and red clover.
Ascochyta hordei is a plant pathogen that causes Ascochyta leaf spot on barley and wheat. ALS of barley can also be caused by other Ascochyta including A. graminea, A. sorghi, and A. tritici. It is considered a minor disease.
Ascochyta graminea is a plant pathogen that causes Ascochyta leaf spot on barley which can also be caused by the related fungi Ascochyta hordei, Ascochyta sorghi and Ascochyta tritici. It is considered a minor disease of barley.
The Pleosporales is the largest order in the fungal class Dothideomycetes. By a 2008 estimate, it contained 23 families, 332 genera and more than 4700 species. The majority of species are saprobes on decaying plant material in fresh water, marine, or terrestrial environments, but several species are also associated with living plants as parasites, epiphytes or endophytes. The best studied species cause plant diseases on important agricultural crops e.g. Cochliobolus heterostrophus, causing southern corn leaf blight on maize, Phaeosphaeria nodorum causing glume blotch on wheat and Leptosphaeria maculans causing a stem canker on cabbage crops (Brassica). Some species of Pleosporales occur on animal dung, and a small number occur as lichens and rock-inhabiting fungi.
Phoma is a genus of common coelomycetous soil fungi. It contains many plant pathogenic species.
Charles Edward Fairman was an American physician who published in the field of mycology. He was for many years the health officer of Yates, New York, and on the staff of the Medina Memorial Hospital. A charter member of the Mycological Society of America, Fairman published several papers relating to fungi including the pyrenomycetes, the Lophiostomataceae, and the fungi imperfecti.
Ascochyta viciae is an ascomycete fungus species in the genus Ascochyta.
Calophoma clematidina is a fungal plant pathogen and the most common cause of the disease clematis wilt affecting large-flowered varieties of Clematis. Symptoms of infection include leaf spotting, wilting of leaves, stems or the whole plant and internal blackening of the stem, often at soil level. Infected plants growing in containers may also develop root rot.
Ascochyta blights occur throughout the world and can be of significant economic importance. Three fungi contribute to the ascochyta blight disease complex of pea. Ascochyta pinodes causes Mycosphaerella blight. Ascochyta pinodella causes Ascochyta foot rot, and Ascochyta pisi causes Ascochyta blight and pod spot. Of the three fungi, Ascochyta pinodes is of the most importance. These diseases are conducive under wet and humid conditions and can cause a yield loss of up to fifty percent if left uncontrolled. The best method to control ascochyta blights of pea is to reduce the amount of primary inoculum through sanitation, crop-rotation, and altering the sowing date. Other methods—chemical control, biological control, and development of resistant varieties—may also be used to effectively control ascochyta diseases.
The Didymellaceae are a family of fungi in the order Pleosporales. They have a world-wide distribution.
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