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Septoria
''Septoria'' is a genus of fungal plant pathogens in the phylum Ascomycota. They cause necrotic leaf spots on the leaves of their hosts, producing filiform or cylindrical conidia inside pycnidia embedded in the leaves. Economically important species cause diseases on field crops, Fodder, forages, and vegetables. The genus is widespread, and estimated to contain 1072 species. Notable species ''Septoria apiicola'' is the cause of late blight of celery. It can survive on seeds, causing disease in the seedlings when they germinate. Several species of Passiflora, passion flower are infected by several species of ''Septoria''. One species, initially thought to be ''Septoria passiflorae'', but actually an undescribed species, has been used to control the invasive species, invasive ''Passiflora tarminiana'' in Hawai'i. Dispersal The pycnidia produce conidia, which are pushed out through an opening. They are spread by splashing rain. Taxonomy In 2013, two large volumes (about 80 pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Cannabis
''Septoria cannabis'' is a species of plant pathogen from the genus ''Septoria'' that causes the disease commonly known as ''Septoria'' leaf spot. Early symptoms of infection are concentric white lesions on the vegetative leaves of cannabis plants, followed by chlorosis and necrosis of the leaf until it is ultimately overcome by disease and all living cells are then killed. ''Septoria'', which is an ascomycete and pycnidia producing fungus, has been well known to attack ''Solanaceae'' and ''Cucurbitaceae'' species as well as many tree species. This genus is known to comprise over 1,000 species of pathogens, each infecting a specific and unique host. Hosts and symptoms This disease only infects cannabis or hemp plants. Symptomatic responses associated with this disease will be in the form of white lesions with concentric rings on the surface of the plants vegetative leaves, as well as browning and chlorosis on infected leaves. The first symptoms of this disease will occur on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Lycopersici
''Septoria lycopersici'' is a fungal pathogen that is most commonly found infecting tomato The tomato (, ), ''Solanum lycopersicum'', is a plant whose fruit is an edible Berry (botany), berry that is eaten as a vegetable. The tomato is a member of the nightshade family that includes tobacco, potato, and chili peppers. It originate ...es. It causes one of the most destructive diseases of tomatoes and attacks tomatoes during any stage of development.Douglas, S. M. (2008, June"Septoria Leaf Spot on Tomato"Missouri Botanical Garden (2017"Septoria Leaf Spot on Tomato" Host and symptoms ''Septoria lycopersici'' infects the tomato leaves via the stomata and also by direct penetration of epidermal cells. Symptoms generally include circular or angular lesions most commonly found on the older, lower leaves of the plant. The lesions are generally 2–5mm in diameter and have a greyish center with brown margins.Elmer, W. H., & Ferrandino, F. J. (1995). "Influence of spore density, l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Cucurbitacearum
''Septoria cucurbitacearum'' is a fungal plant pathogen infecting cucurbits. Symptoms of Septoria leaf spot are similar on all the cucurbits infected. Description Spots are normally circular or occasionally irregular, beige to nearly white in color, measuring 1 to 2 mm in diameter or occasionally larger on the upper leaf surface. A narrow brown border surrounds the spot and, with age, the lesion may crack. When the disease first appears in the spring under moist conditions, the spots appear with or without a white speck surrounded by a much larger brown water-soaked border, giving the appearance of a different disease. The distinguishing sign on older spots is the presence of small, black, speck-like fruiting bodies called pycnidia embedded within the tissue. Not all spots will contain pycnidia, but some may contain up to eight or more. The black specks can be seen with an unaided eye. Under moist conditions, long, thin, needle-like conidia are released. Small (1 to 2&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Citri
''Septoria citri'' is a fungal A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as one of the tradit ... plant pathogen infecting citruses. References External links Index FungorumUSDA ARS Fungal Database citri Fungi described in 1877 Fungal citrus diseases Fungus species {{fungus-fruit-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Campanulae
''Septoria campanulae'' is a fungal plant pathogen infecting bellflowers. It is closely related to other species from hosts in Apiaceae Apiaceae () or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus ''Apium,'' and commonly known as the celery, carrot, or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering p ..., such as '' Septoria aegopodina'' and '' Septoria oenanthis''. References External links Index FungorumUSDA ARS Fungal Database campanluae Fungal plant pathogens and diseases Ornamental plant pathogens and diseases Fungi described in 1846 Taxa named by Joseph-Henri Léveillé Fungus species {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Darrowii
''Septoria darrowii'' is a species of fungus in the family Mycosphaerellaceae. It is a plant pathogen Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like orga ... infecting caneberries. References darrowii Fungal plant pathogens and diseases Small fruit diseases Fungi described in 1916 Fungus species {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Azaleae
''Septoria azaleae'' is a fungal A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as one of the tradit ... plant pathogen infecting azaleas. References External links Index FungorumUSDA ARS Fungal Database azaleae Fungal plant pathogens and diseases Ornamental plant pathogens and diseases Fungi described in 1899 Fungus species {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Ampelina
''Septoria ampelina'' is a fungal A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as one of the tradit ... plant pathogen that affects grapes causing septoria leaf spot. References External links Index FungorumUSDA ARS Fungal Database ampelina Fungal plant pathogens and diseases Fungi described in 1874 Fungus species {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Aciculosa
''Septoria aciculosa'' is a fungal plant pathogen that can infect strawberries. This pathogen also affects coniferous trees, particularly those in the pine family (Pinaceae The Pinaceae (), or pine family, are conifer trees or shrubs, including many of the well-known conifers of commercial importance such as Cedrus, cedars, firs, Tsuga, hemlocks, Pinyon_pine, piñons, larches, pines and spruces. The family is incl ...). This fungus is known to cause a specific disease called "needle cast" or "Septoria needle cast." References External links Index FungorumUSDA ARS Fungal Database aciculosa Fungi described in 1884 Fungal strawberry diseases Taxa named by Benjamin Matlack Everhart Fungus species {{fungus-fruit-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |