Table 4.
Carbonate mineral precipitation in solid media and carbonic anhydrase activity.
| Strain | Number of days strains take to precipitate | Carbonic anhydrase | |||||
|---|---|---|---|---|---|---|---|
| Culture media tested | |||||||
| SM1 | SM2 | SM3 | SM4 | SM5 | SM6 | ||
| Bacillus marisflavi S1 | 4 | 6 | NF | 8 | 14 | 14 | NR |
| Bacillus marisflavi S2 | 4 | 6 | NF | 10 | NF | NF | NR |
| Virgibacillus pantothenticus S3 | 2 | 2 | 8 | 8 | 14 | 14 | NR |
| Bacillus pumilus M1 | 6 | 8 | NF | 8 | NF | NF | PR |
| Bacillus pumilus M2 | 6 | 10 | 8 | 10 | 16 | 14 | PR |
| Bacillus marisflavi M3 | 2 | 2 | 8 | 8 | 14 | 14 | PR |
PR: positive reaction; NR: negative reaction (no yellow colouration). NF: non-crystal-formation.