CHARACTERIZATION OF THREE BENZOATE DEGRADING ANOXYGENIC PHOTOSYNTHETIC BACTERIA ISOLATED FROM THE ENVIRONMENT
AbstractThreeÂ anoxygenic photosynthetic bacteria, DS-1, DS-4 and Cas-13, have been examinatedÂ forÂ the
morphological and physiologicalÂ properties. All strains were rod-shape cells withÂ a swollen terminalÂ end
GramÂ negative, motile, non-halophilic, non-alkalophilicÂ and non-acidophilic,Â and capable of utilizin
benzoate aerobically and photo-anaerobically. Sequence analysis of part of 16S rRNA genes showed that DS
1 and Cas-13 were closely related to Rhodopseudomonas palustris Strain 7 with a similarity of 97%, wherea
DS-4 may not be closely related to the former two strains with a similarity of 78% based on the constructe
phylogenicÂ tree. Spectral analysis indicated that the threeÂ bacteriaÂ hadÂ bacteriochlorophylÂ aÂ and norma
Growth in medium enriched with vitamin and supplemented with benzoate as their sole C-sources wa
better than in medium without vitamin. Benzoate degradation in medium with vitamin was accelerated. Th
abilityÂ to grow on benzoate without added vitamins indicatedÂ thatÂ the bacteria were able to synthesizeÂ the
Key words: anoxygenic photosynthetic bacteria/ benzoate degradation/ 16S rRNA gene.
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How to Cite
SURYANTO, D., SUWANTO, A., & MERYANDINI, A. (2011). CHARACTERIZATION OF THREE BENZOATE DEGRADING ANOXYGENIC PHOTOSYNTHETIC BACTERIA ISOLATED FROM THE ENVIRONMENT. BIOTROPIA - The Southeast Asian Journal of Tropical Biology, (17). https://doi.org/10.11598/btb.2001.0.17.166
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