| Date | 1837 |
| Author | Kutzing |
| Contribution | a. Described and illustrated yeast cells, and proposed that all fermentations are vital processes. |
| Reference | Lechevalier |
| Notes | Friedrich Kützing allegedly did the work in 1834 (q.v.) but forfeited priority by not publishing at that time. |
| Category | Miscellany |
| Pathogen Class | Fungi |
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