| Roundtable Proposals open: | 8 December 2025 |
| Abstract Submissions open: | 12 January 2026 |
| Travel Award Applications open: | 12 January 2026 |
| Registration open: | February 2026 |
| Deadline Roundtable Proposals: | 7 February 2026 |
| Deadline Abstract Submissions: | 15 February 2026 |
| Deadline Travel Award Applications: | 15 February 2026 |
| Notification Outcome of Submissions: | 30 March 2026 |
| Abstract Submissions for Poster Presentation: | 15 April 2026 |
| Deadline Early Bird Registration: | 1 May 2026 |
| 20th International Symposium on Microbial Ecology | 16 - 21 August 2026 |