Isolation and Identification of Several Photosynthesis Bacteria and Their Application in the Culture of Tilapia sp.
- VernacularTitle:几株光合细菌的分离鉴定及在养殖罗非鱼中的应用
- Author:
Zhiyong HUANG
- Publication Type:Journal Article
- Keywords:
Qhotosynthesis bacteria, Isolation, Identification, Culture of Tilapia sp.
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
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Abstract:
Five purple non-sulfur bacterial strains were isolated from the sediments of the rearing pond. According to the cultural, morphological, cellular spectra, physiological properties and inner intracytoplasmic membrane structures, strain AS-31 that was short rod and contained lamellar intracytoplasmic membrane was identified as Rhodopseudomonas palustris, and other four isolates (AS-32, DA-32, SY-32, and SY34) which were spheroid and contained vesicular intracytoplasmic membranes were identified as Rhodobacter spheroids. Pure cultures of strains AS-31 and SY-32 were used as additive in aquiculture of Tilapia sp.. After weeks of incubation, the weight and surviving percentage of experimental fishes increased about 20% than those of the control group without any additive. However, the mixed culture of strains AS-31 and SY32 have no obvious effect than that of the pure one. It demonstrated that the cultures of purple non-sulfur bacteria are of benefit to aquiculture and could be used as an additive.
