Table 3.
Comparisons of the morphological characteristics of T. phuphaphetensis sp. nov. (TBRC 16281), T. satunensis sp. nov. (TBRC 16246), and closely related species of Talaromyces section Trachyspermi based on the phylogeny in this study.
| Microscopic Characters |
T. brasiliensis [4] |
T. phuphaphetensis (This Study) |
T. resinae [21] |
T. satunensis (This Study) |
T. subericola [7] |
||
|---|---|---|---|---|---|---|---|
| On MEA | Conidiophore | stipes (μm) | 20–50 × 2.5–4 | 15–60 × 2.5–3 | N/A | 20–290 × 2–3.2 | N/A |
| branching | biverticillate | mostly biverticillate, monoverticillate | mostly biverticillate, monoverticillate, terverticillate | ||||
| ornamentation | smooth | finely tuberculate | tuberculate | ||||
| Metulae | size (μm) | 8–11 × 2.5–3.5 | 5–9 × 1.5–3 | 5.5–10 × 2–3.3 | |||
| per verticil | 5–6 | 2–6 | 2–5 | ||||
| Phialides | size (μm) | 7–11 (−14) × 2–3 | 7–9.5 × 2–3 | 6–9 × 2–3.2 | |||
| per metula | 3–4 | 3–5 | 2–5 | ||||
| Conidia | size (μm) | 2–3 | 2.0–3.5 | 2.5–3 | |||
| shape | globose | Globose to sub-globose | globose to sub-globose | ||||
| ornamentation | finely roughened | smooth | smooth | ||||
| On CZ | Conidiophore | stipes (μm) | N/A | 30 − 100 (–120) × 2 − 3 | 40 − 60 (−80) × 3 − 4 | 25 − 135 × 2 − 3.5 | N/A |
| branching | biverticillate, monoverticillate | most biverticillate, monoverticillate symmetric | biverticillate, monoverticillate | ||||
| ornamentation | tuberculate | smooth | tuberculate | ||||
| Metulae | size (μm) | 6 − 8 × 2.5 − 3 | 6–8 (–12) × 2.5–3.5 | 5−9 × 2−3.5 | |||
| per verticil | 2–4 | N/A | 2–3 | ||||
| Phialides | size (μm) | 5 − 11 × 2 − 3 | 6–8 (−12) × 2 − 3 | 6 − 9 × 2 − 3 | |||
| per metula | 3–4 | N/A | 3–5 | ||||
| Conidia | size (μm) | 3–4 | (3−) 3.5 − 4.5 (−5) | 3–4 | |||
| shape | globose to sub-globose | globose to sub-globose | globose to sub-globose | ||||
| ornamentation | smooth | tuberculate | smooth | ||||
| On CYA * | Conidiophore | stipes (μm) | N/A | 20 − 70 × 2 − 3 | N/A | 35 − 85 × 2 − 2.5 | 30 − 45 × 2 − 3 |
| branching | biverticillate, monoverticillate | biverticillate, monoverticillate | biverticillate | ||||
| ornamentation | finely tuberculate | finely tuberculate | smooth | ||||
| Metulae | size (μm) | 8 − 12 × 2 − 3 | 6 − 9 × 2 − 2.5 | 12 − 20 × 2 − 3 | |||
| per verticil | 2–6 | 2–4 | 2–3 | ||||
| Phialides | size (μm) | 8 − 11 × 2 − 3 | 6.5 − 10.5 × 2 − 2.5 | 7 − 10 × 2 − 3 | |||
| per metula | 3–5 | 3–4 | 2–4 | ||||
| Conidia | size (μm) | 2–2.5 | 2–3 | 3 | |||
| shape | globose to sub-globose | globose to sub-globose | ellipsoidal to globose | ||||
| ornamentation | smooth | smooth | smooth-walled but verruculose with age | ||||
N/A = data not available. * = Microscopic characters were derived after incubation for 2 to 3 weeks.