Table 3.
Differential characteristics between Streptomyces napthomycinicus TML10T and related species of Streptomyces.
| Characteristics/strains | 1#. | 2a. | 3. | 4. | 5#. |
|---|---|---|---|---|---|
| Spore chain | Loop | Spiral | Spiralc | Spiralc | Spiralc |
| Spore surface | Spiny | Rough | Spinyc | Smoothc | Spinyc |
| Aerial mass color on ISP 2 | Grayish green | Medium gray | Grayc | Light grayish yellowish brownc | Pale yellowish green |
| Diffusion pigment on ISP2 | – | + (brilliant yellow) | –c | –c | – |
| Melanin pigment production on ISP 7 | + | + | +c | –c | + |
| Growth at pH 4 | – | – | –a | +b | – |
| Minimum pH for growth | 5 | 6 | 6a | nd | 5 |
| Maximum NaCl tolerance (%, w/v) | 5 | 7 | 3a | 2 (w)d | 5 |
| Maximum temperature for growth (°C) | 37 | 45 | 42a | nd | 37 |
| Hydrolyze of starch | + | – | wa | +d | + |
Strain: 1, Streptomyces napthomycinicus TML10T; 2, Streptomyces musisoli CH5-8T; 3, Streptomyces echinatus JCM 4144T; 4, Streptomyces corchorusii NBRC 13032T, 5, Streptomyces cellostaticus NBRC 12849T. +, positive or present; –, negative or absent; w, weak; nd, no report. Data was taken from aDuangupama et al. (2021); bTaké et al. (2015); cKämpfer (2012); dLaw et al. (2019); #all data from this study.
Data from the literatures used the same methods with this study except; aThe pH range for growth was tested in ISP 2 broth. dNaCl tolerance was tested in tryptic soy broth.