Bioremediation of phenol, sulfate sodium, and PAH by Rhodococcus sp. first time isolated and molecular characterized from aquatic and terrestrial ecosystems

BACKGROUND AND ABJECTIVEEnvironmental pollutions are the most significant problem worldwide. Rhodococcus sp. has a high potential for the production of secondary metabolites and degradation activity. This study aims to screen and characterize biodegradable Rhodococcus from Iranian ecosystems.MATERIALS AND METHODSThe Rhodococcus isolates were recovered from ۹۰ environmental samples and identified using conventional and molecular methods. The growth rate in the presence of pollutants and chromatography (HPLC) was used to determine their biodegradation capability.RESULTS AND DISCUSSIONA total of ۱۳ Rhodococcus isolates were characterized from the cultured samples (۱۴.۵%) that belonged to seven species. The prevalent species were: R.erythropolis (۴ isolates;۳۰.۸%), R.atherivorans (۳ isolates;۲۳%), R.ruber (۲ isolates;۱۵.۴), and R.zopfi, R.phenolicus, R.equi, and R.rhodochrous ۱ isolate each. The result showed that these isolates could degrade and consume phenol, PAH, and sulfate sodium.CONCLUSIONOur results showed that the Rhodococcus species have significant potential for bioremediation of diverse types of pollutants. Therefore, more studies are recommended for the biodegradation activity of Rhodococcus.

کلیدواژه ها:

۱۶SrRNA gene sequencing ، Biodegradation ، Rhodococcus ، HPLC