TABLE 2.
Antimicrobial, hemolytic, and enzymatic activities of wild type (WT), ICMP11096glad-I and ICMP11096glad-IR mutants of B. gladioli pv. agaricicola.
Studied strains | Antimicrobial effecta | Erycrocyte cell lysisb | Extracellular hydrolytic enzymesc | |||||||
B. meg | E. col | Protease | Cellulase | Chitinase | Amylase | Glucanase | Pectinase | Polygalacturonase | ||
Bga WT | 35 ± 1.5 | 30 ± 2.7 | 15 ± 2.1 | 12 ± 1.3 | – | 25 ± 3.6 | – | 28 ± 3.5 | – | – |
Bga gladI | 8 ± 0.7 | 5 ± 0.2 | – | 5 ± 0.4 | – | 5 ± 0.7 | – | 12 ± 2.1 | – | – |
Bga gladIR complemented | 33 ± 2.4 | 28 ± 3.3 | 12 ± 1.5 | 9 ± 1.9 | – | 12 ± 1.7 | – | 22 ± 2.8 | – | – |
aAntimicrobial effect of wild type (WT) and mutants of Bga ICMP11096 strain against Bacillus megaterium (B. meg) and E. coli (E. col) expressed as antagonistic capacity percentage; bHemolytic effect against erythrocyte cell membrane of fresh bovine blood; cExtracellular hydrolytic enzymes (hydrolysis zones in mm) caused by WT, ICMP11096glad-I and ICMP11096glad-IR mutants.