Table 1. Fungus-growing ant colonies from which Pseudonocardia and cultivar isolates were obtained.
| Ant species origin | Colony ID | Geographic origin |
| Cross-phylogeny Petri dish bioassay | ||
| Apterostigma dentigerum (1) | AL040114-11 | Panama |
| Apterostigma dentigerum (2) | MTP050505-10 | Panama |
| Apterostigma dentigerum (3) | AL050512-17 | Panama |
| Cyphomyrmex muelleri (4) | AL050512-19 | Panama |
| Cyphomyrmex longiscapus (5) | ST040117-7 | Panama |
| Cyphomyrmex costatus (6) | CC031210-9 | Panama |
| Trachymyrmex cornetzi (7) | AL041002-3 | Panama |
| Trachymyrmex cornetzi (8) | AL041005-10 | Panama |
| Trachymyrmex zeteki (9) | AL030107-17 | Panama |
| Trachymyrmex zeteki (10) | AL050513-4 | Panama |
| Acromyrmex octospinosus (11) | UGM020518-5 | Panama |
| Acromyrmex octospinosus (12) | CC031210-22 | Panama |
| Acromyrmex echinatior (13) | CC031212-1 | Panama |
| Acromyrmex echinatior (14) | CC031209-2 | Panama |
| Within- Acromyrmex Petri dish bioassay | ||
| Acromyrmex niger (A) | CC030327-2 | Argentina |
| Acromyrmex hispidus fallax (B) | SP030327-1 | Argentina |
| Acromyrmex hispidus fallax (C) | UGM030327-2 | Argentina |
| Acromyrmex laticeps (D) | UGM030330-4 | Argentina |
| Acromyrmex echinatior (E) | 291 | Panama |
| Acromyrmex echinatior (F) | 292 | Panama |
| Acromyrmex echinatior (G) | 295 | Panama |
| Acromyrmex echinatior (H) | CC031212-1 | Panama |
| Acromyrmex octospinosus (I) | CC011010-4 | Panama |
| Acromyrmex octospinosus (J) | CC031210-22 | Panama |
| Acromyrmex octospinosus (K) | ST040116-1 | Panama |
| Acromyrmex octospinosus (L) | UGM020518-5 | Panama |
Cross-phylogeny strains are labeled 1–14 and within-Acromyrmex strains are labeled A–L (See Table 2).