Species/Subspecies:
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Aspergillus ochraceus |
Categories:
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Of practical use; spoilage organism |
Etymology:
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Genus name: to scatter.
Species epithet: ocher-coloured. |
Significance: | [Unclassified]
|
Taxonomy:
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Phylum | Class | Order | Family | Genus |
Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Aspergillus |
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Macromorphology (smell):
| Kolonier of A. ochraceus grow fast (about 50 mm in 7 days). Many nice pictures of A. ochraceus can be found in the reference below (no. 89). |
Micromorphology:
| The conidia are 2.5-3.5 µm in diameter. |
Reproduction: | |
Spec. Char.:
| Optimal temperature for growth is 25°C. |
Disease/effect:
| Many more animal species than those listed in the table below can be affected by ochratoxicosis. Dogs are particularly sensitive, while ruminants are less sensitive.
|
Virulence Factors:
| Produces the mycotoxins ochratoxin A, citrinin och mellein (= dihydroisocoumarin). |
Genome Sequence:
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ACC-No GenBank | Strain/Isolate | # of chrom | Size (Mbp) |
GCA_004849945 | fc-1RG | | 38.8 |
|
18S rRNA Seq:
|
ACC-No GenBank | Strain/Isolate | Number of NT |
NC_AB002068 | NRRL 1642 | 1767 |
|
ITS regions:
|
ACC-No GenBank | Strain/Isolate | Number of NT |
NC_077150 | NRRL 398 | 613 |
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Taxonomy/phylogeny:
|
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Practical use: | A. ochraceus produces many different enzymes, which can have industrial importance, e.g. hydrolases, proteases, tannases, oxidases and cellulases (see ref. 91 below). |
Comment: | In terms of ochratoxin production, Aspergillus alliaceus appears to be more important on at least some substrates than A. ochraceus (see ref. 90 below). |
Reference(s):
| No. 89, 90, 91 |
Updated: | 2023-01-18 |