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Phyllosticta citricarpa is a plant pathogen, some strains of which cause a leaf condition called black spot on citrus plants. [2] As a result, such strains are subject to phytosanitary legislation in the European Union and the United States.
White mold affects a wide range of hosts and causes sclerotinia stem rot. It is known to infect 408 plant species. As a nonspecific plant pathogen, [2] diverse host range and ability to infect plants at any stage of growth makes white mold a serious disease. The fungus can survive on infected tissues, in the soil, and on living plants.
The black spots are circular with a perforated edge, and reach a diameter of 14 mm (1 ⁄ 2 inch). Badly affected plants, however, will not show the circular patterning, as they combine to cause a large, black mass. The common treatment of the disease is to remove the affected leaves and spray with antifungal solutions.
This disease affects strawberry plant foliage causing purple spots ⅛ to ¼ inches across on the upper side of the leaves. [3] At first, the whole spot is purple but as the disease matures the center of the leaf spots on older leaves become tan or gray, then almost white.
Rhizopus microsporus is a fungal plant pathogen infecting maize, sunflower, and rice. A domesticated variant of this species is used in the preparation of traditional soy fermentation such as tempeh and sufu (see Rhizopus oligosporus). It can also cause a nosocomial infection and necrosis to the infected area, particularly prevalent in pre-term ...
When the chlamydospores first infect the plant, they give rise to the mycelium, or hyphae network, which then lead to further spore infection. This gives rise to the black rot that is seen. If the infection is seen out in the field, the chlamydospores will over winter in the dead debris of the plants or in the soil. [5]
This causes the greyish-black color often observed in plants infected by M. phaseolina, and it also prevents water and nutrients from being transported from the roots to the upper parts of the plant. [9] Thus, due to this systemic infection, diseased plants often wilt and die prematurely.
Colletotrichum lindemuthianum is a fungus which causes anthracnose, or black spot disease, of the common bean plant (Phaseolus vulgaris).It is considered a hemibiotrophic pathogen because it spends part of its infection cycle as a biotroph, living off of the host but not harming it, and the other part as a necrotroph, killing and obtaining nutrients from the host tissues.