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	+

++: high activity; +: positive effect; −: negative effect.
++ = >20 mm, + = 10–20 mm, ± = 1–10 mm, − = 0 mm, and N = non determined.