Research Article
Bioremediation and Detoxification of Synthetic Wastewater Containing Triarylmethane Dyes by Aeromonas hydrophila Isolated from Industrial Effluent
Table 2
Morphological, physiological, and biochemical characteristics of isolate TTW 4.
| | Test | Aeromonas hydrophila |
| | Cellular morphology | | | Shape | Bacilli | | Gram reaction | Gram negative | | Motility | Motile | | Presence of endospore | − | | Physiological tests | | | Growth at 25–43°C | + | | Growth at pH 4–10 | + | | Salt tolerance | 4% | | Biochemical tests | | | Catalase | + | | Oxidase | + | | Indole | + | | Methy red | − | | Voges proskauer | + | | Citrate utilization | + | | Hydrolysis of: | | | Arbutin | + | | Esculin | + | | Gelatine | + | | Starch | + | | Urea | − | | β-haemolysis | + | | DNAse | + | | Gas from glucose | + | | Hydrogen sulphide production | + | | KCN | + | | Lipase | + | | ONPG | + | | LDC | + | | ADH | + | | ODC | − | | PPA | + | | Tyrosine | − | | Acid from | | | Adonitol | − | | Galactose | + | | L-Arabinose | + | | Cellobiose | − | | Glycerol | + | | m-Inositol | − | | Lactose | − | | Maltose | + | | Mannose | + | | D-Mannitol | + | | Melibiose | − | | Trehalose | + | | Raffinose | − | | Xylose | − | | Salicin | + | | D-Sorbitol | − | | Sucrose | + |
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Abbreviations: ONPG, o-nitrophenyl: D-galactopyranoside; VP, Voges-Proskauer; LDC, lysine decarboxylase; ODC, ornithine decarboxylase; ADH, arginine dihydrolase; PPA, phenylpyruvic acid (phenylalanine deaminase).
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