Research Article
Antibacterial Activity of Pseudonocardia sp. JB05, a Rare Salty Soil Actinomycete against Staphylococcus aureus
Table 1
Morphological and biochemical characteristics and antibacterial activity of Pseudonocardia sp. JB05.
| Properties | Pseudonocardia sp. JB05 |
| Morphological characteristics | | Sporophor morphology | Straight | Color of aerial mycelium | Brown | Color of substrate mycelium | Reddish brown | Spore mass | Brown | Biochemical characteristics | | Gram staining | + | H2S production | − | Nitrate reduction | − | Urease | + | Catalase | ++ | Chitinase | − | Starch hydrolysis | + | Melanin production | − | Antibacterial effect on indicator strains | | Staphylococcus aureus | ++ | Bacillus subtilis | ± | Pseudomonas aeroginosa | − | Klebsiella sp. | − | Xanthomonas citri | − | Acinetobacter sp. | − | Escherichia coli | − | Bacillus pusteurii | + |
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++: high activity; +: positive effect; −: negative effect. ++ = >20 mm, + = 10–20 mm, ± = 1–10 mm, − = 0 mm, and N = non determined.
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