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Dry rot is spread by spores which are present in most buildings. The minimum moisture content of timber for spore germination is 28–30% (lower than other rots), and the relative humidity must be in excess of 95%. Spores are resistant to desiccation and may still be viable for germination when they are several years old. [2]
Mold propagates via spores, which are always present in the environment. Mold spores can be transferred to an object by mechanical instruments or air circulation. When spores attach to another organism, and the environment is favorable, they begin to germinate. Mold produce mycelium which growth pattern resembles cobwebs. Mycelium allows the ...
Mold allergies are present in a minority of the population that is genetically predisposed to mold, and usually this allergy is not life threatening. Black molds, or so called toxic molds, can ...
When mold spores are inhaled by an immunocompromised individual, some mold spores may begin to grow on living tissue, [28] attaching to cells along the respiratory tract and causing further problems. [29] [30] Generally, when this occurs, the illness is an epiphenomenon and not the primary pathology. Also, mold may produce mycotoxins, either ...
The body of mold consists of a thread-like root that invades the food, a stalk that rises above the food and may not be visible to the naked eye, and spores that form at the end of the stalks ...
The thermal death point, which is defined as the lowest temperature that can kill all cells in ten minutes, is 60 °C. [7] Rhizopus stolonifer can grow in acidic environments with a pH of as low as 2.2. The pH range can vary from 2.2 to 9.6. [9] Ultraviolet irradiation can delay spore germination. [10]
Weitz shared a more specific step-by-step of how mold develops: A mold spore lands on the food. If the condition is right, the spore begins germinating, growing and forming tiny filaments called ...
This species is also psychrophilic, it can grow at temperatures between −10 and −3 °C (14 and 27 °F). [15] Cladosporium cladosporioides occurs outdoor environments year-round with peak spore concentration in the air occurring in summer where levels can range from 2,000 spores up to 50,000 spores per cubic meter of air. [ 16 ]