Research Article
Cultivation-Dependant Assessment, Diversity, and Ecology of Haloalkaliphilic Bacteria in Arid Saline Systems of Southern Tunisia
Table 2
Salt and pH tolerance levels and hydrolytic activities of ITS haplotype representatives isolates.
| Representative strains
of ITS haplotypes | Identification | Gram | NaCl tolerance range (%) | pH tolerance range | Production of extracellular enzymes | | Protease | Lipase | DNase | Amylase |
| | H1-BMG G12 | Halomonas boliviensis | − | 0– | 7– | − | + | + | − | | H2-BMG F5 | Bacillus saliphilus | + | 0– | 7– | − | − | + | + | | H3-BMG D30 | Halomanas janggokensis | − | 0– | 7– | − | + | − | − | | H4-BMG D39 | Bacillus saliphilus | + | 0– | 7– | + | − | + | + | | H5-BMG D32 | Nesterenkonia lacusekhoensis | + | 0– | 7– | − | − | − | − | | H6-BMG G3 | Bacillus saliphilus | + | 0– | 7– | + | − | + | + | | H7-BMG F7 | Halomonas gomseomensis | − | 0– | 7– | − | + | + | − | | H8-BMG ED18 | Salinicoccus alkaliphilus | + | 0– | 7– | + | – | − | − | | H9-BMG D26 | Halomanas janggokensis | − | 0– | 7– | − | + | − | − | | H10-BMG F8 | Halomonas taeanensis | − | 0– | 7– | − | – | − | − | | H11-BMG G6 | Halomonas elongata | − | 0– | 7– | − | + | − | + | | H12-BMG ED65 | Salimicrobium luteum | + | 5– | 7– | − | + | − | − | | H13-BMG ED6 | Oceanobacillus iheyensis | + | 0– | 7– | + | – | + | – | | H14-BMG F4 | Nesterenkonia halobia | + | 0– | 7– | + | + | − | + | | H15-BMG E7 | Salinicoccus hispanicus | + | 0– | 7– | − | − | − | − | | H16-BMG E6 | Salinicoccus alkaliphilus | + | 0– | 7– | − | − | − | − | | H17-BMG ED88 | Salinicoccus hispanicus | + | 0– | 7– | − | − | − | − | | H18-BMG G2 | Piscibacillus salipiscarius | + | 1– at pH 7
0– at pH 10-11 | 7– | − | + | − | + | | H19-BMG E11 | Halobacillus litoralis | + | 0– | 7– | + | − | + | + | | H20-BMG D102 | Halomonas elongata | − | 0– | 7– | + | + | + | + | | H21-BMG ED25 | Arthrobacter gangotriensis | + | 0– | 7– | − | − | − | − | | H22-BMG D91 | Halomanas janggokensis | − | 0– | 7– | − | + | − | − | | H23-BMG ED46 | Salinicoccus hispanicus | + | 0– | 7– | − | − | − | − | | H24-BMG D115 | Nesterenkonia halobia | + | 1– at pH 7
0– at pH 10-11 | 7– | − | + | − | + | | H25-BMG ED60 | Salinicoccus hispanicus | + | 0– | 7– | + | − | − | − | | H26-BMG G7 | Halomonas elongata | − | 0– | 7– | − | + | − | + | | H27-BMG E9 | Oceanobacillus iheyensis | + | 0– | 7– | + | − | + | − | | H28-BMG G8 | Leucobacter chromiireducens | + | 0– | 7– | − | + | − | + | | H29-BMG E4 | Halomonas ventosae | − | 0– | 7– | + | − | − | − | | H30-BMG G11 | Halomonas subterranea | − | 0– | 7– | − | + | − | − | | H31-BMG ED15 | Oceanobacillus picturae | + | 0– | 7– | + | − | − | − | | H32-BMG E2 | Brevibacillus agri | + | 0– | 7– | − | − | − | − | | H33-BMG E1 | Halobacillus litoralis | + | 0– | 7– | + | − | + | + | | H34-BMG E5 | Piscibacillus salipiscarius | + | 1– at pH 7
0– at pH 10-11 | 7– | + | + | − | + | | H35-BMG ED37 | Salinicoccus hispanicus | + | 0– | 7– | − | − | − | − | | H36-BMG D109 | Halobacillus profundi | + | 0– | 7– | + | − | + | + | | H37-BMG E3 | Halomonas ventosae | − | 0– | 7– | − | − | − | − | | H38-BMG G4 | Halobacillus litoralis | + | 1– at pH 7
0– at pH 10-11 | 7– | − | − | + | + | | H39-BMG F11 | Halomonas ventosae | − | 0– | 7– | − | − | − | − | | H40-BMG D16 | Halomonas gomseomensis | − | 0– | 7– | − | + | + | − | | H41-BMG E8 | Marinococcus halophilus | + | 1– at pH 7
0– at pH 10-11 | 7– | − | − | + | − | | H42-BMG F2 | Halomonas boliviensis | − | 0– | 7– | − | + | + | − | | H43-BMG ED33 | Virgibacillus halodenitrificans | + | 0– | 7– | + | − | − | − | | H44-BMG D12 | Oceanobacillus iheyensis | + | 0– | 7– | − | − | + | − |
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