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Penicillium chrysogenum (formerly known as Penicillium notatum) is a species of fungus in the genus Penicillium. It is common in temperate and subtropical regions and can be found on salted food products, [ 1 ] but it is mostly found in indoor environments, especially in damp or water-damaged buildings. [ 2 ]
The mould was identified as Penicillium chrysogenum and designated as NRRL 1951 or cantaloupe strain. [106] [116] The spores may have escaped from the NRRL. [117] [a] [b] Between 1941 and 1943, Moyer, Coghill and Raper developed methods for industrialized penicillin production and isolated higher-yielding strains of the Penicillium fungus.
[17] From then on, Fleming's mould was synonymously referred to as P. notatum and P. chrysogenum. But Thom adopted and popularised the use of P. chrysogenum. [18] In addition to P. notatum, newly discovered species such as P. meleagrinum and P. cyaneofulvum were recognised as members of P. chrysogenum in 1977. [19]
Like most natural products, penicillin is present in Penicillium moulds as a mixture of active constituents (gentamicin is another example of a natural product that is an ill-defined mixture of active components). [8] The principal active components of Penicillium are listed in the following table: [13] [14]
Penicillium abidjanum [2] Penicillium adametzii [2] Penicillium adametzioides [2] Penicillium aeris [3] Penicillium aethiopicum [2] Penicillium albicans [2] Penicillium albidum [2] Penicillium albocoremium; Penicillium alexiae [4] Penicillium alfredii [5] Penicillium alicantinum [4] Penicillium allahabadense [6] Penicillium allii; Penicillium ...
The range of accounts of fictional parasites and the media used to describe them have greatly increased since the nineteenth century, spanning among other things literary novels, science fiction novels and films, horror films, and video games. [11] [3] [5] [15] The table illustrates the variety of themes and approaches that have become possible.
Penicillium growth can still occur indoors even if the relative humidity is low, as long as there is sufficient moisture available on a given surface. A British study determined that Aspergillus- and Penicillium-type spores were the most prevalent in the indoor air of residential properties, and exceeded outdoor levels. [14]
"The Screwfly Solution" is a 1977 science fiction short story by Raccoona Sheldon, a pen name for American psychologist Alice Sheldon, who was better known by her other nom de plume James Tiptree Jr.