Ascomycetes in General
Origin: A very diverse group or class of fungi. They are very common in the spring and after rainfall. The fungus likes to grow during rain or high humidity and the spores are dispersed during or just after rainfall. They are found on agricultural plants, trees, in the soil, food and juices. They can be released in the form of an Ascomycota or in the Imperfect fungi state. The spores of the Ascomycota are often carried in water droplets in the air. Generally most species are not considered important in causing allergic reactions. Their asexual state, the Imperfect Fungi, however have many species that can cause allergic reactions or can grow in food and cause food rot and produce toxins. Most notably two types of Imperfect Fungi that are involved in food rot are Alternaria and Aspergillus / Penicillium. The Ascomycetes are of great importances in the destruction of cellulosice fabrics, as pathogens of crop plants, timber, and ornamental trees. They are the most destructive , causing apple scab, food rot, and other diseases such as Dutch elm and the chestnut and potato blight.
Health effects: Rarely cause allergic reactions. The Leptosphaeria are part of this group and can cause skin rashes.
Last Updated: 03 September 2009
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