TABLE 2.
Characteristics and desiccation resistance of cysts of different A. vinelandii strains
| Strain | Genotype | AR production | Mucoidy | Resistance to desiccation (%) at:
|
|
|---|---|---|---|---|---|
| 5 days | 45 days | ||||
| SW136 | algU+ | + | + | 5.0 ± 1.1 | 0.3 ± 0.1 |
| OV11 | algU+arsA::Tn5 | − | + | 3.9 ± 0.4 | 0.4 ± 0.1 |
| SW-B | algU+arsB::Gmr | − | + | 5.7 ± 1.0 | 0.3 ± 0.1 |
| UW136 | algU mutant, Rifr | + | − | <0.01 | ND |
| OP | algU mutant | + | − | <0.01 | ND |
a
Resistance to desiccation for 5 or 45 days of cysts induced on Burk's medium with n-butanol as the sole carbon source. Values are the means of three determinations ± standard deviations. ND, not determined.