Table 1 Characteristics of gram positive bacteria isolated from limestone soil.
From: Isolation and selection of spore-forming bacilli with potential for self-healing of concrete
Samples | Macroscopic characteristics | Microscopic characteristics |
|---|---|---|
C1 | White colony, circular, opaque, with regular edges, flat, 5 mm in diameter. | Long, thick bacilli, with central spore. |
C2 | Colony with irregular edge, rough, transparent, 12 mm in diameter, produces extracellular polymer. | Short bacilli, spore not visible. |
C3 | White colonies, shiny, convex, regular edges, 3 mm in diameter. | Coccus-shaped, grouped in pairs. |
C4 | Circular colonies with regular edge, convex, white, shiny, 1 mm in diameter. | Coccus-shaped, grouped in pairs. |
C5 | White circular colony, small, shiny, 2 mm in diameter. | Coccus-shaped, grouped in pairs. |
C6 | Elongated bacilli, forming chains. | Powdery white colony, with irregular edges, circular, flat, 7 mm in diameter. |
