Table 3.
Aflatoxin production by fungi with S morphology within Aspergillus section Flavi.
| Species | Isolate | Source/Location | Aflatoxin (µg/g) | ||
|---|---|---|---|---|---|
| AFB | AFG | Total AF | |||
| A. texensis | BRG3224 E | Maize/USA | 42 | 111 | 153 |
| EC42-I | Maize/USA | 40 | 99 | 139 | |
| W11P1R3-B R | Soil/USA | 47 | 111 | 158 | |
| Average | 43C | 107B | 150B | ||
| A. flavus S Morphotype | AF12 | Soil/USA | 190 | NA | 190 |
| AF42 | Soil/USA | 181 | NA | 181 | |
| AF70 | Soil/USA | 191 | NA | 191 | |
| Average | 187AB | NA* | 187B | ||
| A. minisclerotigenes | A-11611 | Groundnut/Nigeria | 31x | 72x | 103x |
| 4-2 | Soil/Australia | 9y | 24y | 33y | |
| TAR3N43 | Soil/Argentina | 9y | 25y | 34y | |
| Average | 17D | 40C | 57C | ||
| A. aflatoxiformans | A-11612 | Groundnut/Nigeria | 92y | 202y | 294y |
| BN038-G | Soil/Benin | 105y | 129z | 234y | |
| BN040-B | Soil/Benin | 207x | 361x | 568x | |
| Average | 134B | 231A | 365A | ||
| Lethal Aflatoxicosis Fungus | K805-E | Maize/Kenya | 304 | NA | 304xy |
| K784-D | Maize/Kenya | 361 | NA | 361x | |
| K849-B | Maize/Kenya | 215 | NA | 215y | |
| Average | 294A | NA* | 294A | ||
B aflatoxin, G aflatoxin and total aflatoxin concentrations were compared between and within species. Each toxin concentration is a mean of four replicates. Means followed by different upper case letters in bold (A,B,C) or lower case letters (x,y) within a column differ significantly according to Tukey’s HSD (p < 0.01). Values within a column lacking a letter do not differ (ANOVA, p > 0.05). * Fungi which do not produce G aflatoxins were excluded when comparing G aflatoxin production between and within species.