Director Research Cell, National Environmental Engineering Research Institute CSIR, Nehru Marg, Nagpur, 440020, India.
Appl Biochem Biotechnol. 2019 Feb;187(2):518-530. doi: 10.1007/s12010-018-2828-x. Epub 2018 Jul 10.
Microbial genomics facilitates the analysis of microbial attributes, which can be applied in bioremediation of pollutants and oil recovery process. The biosurfactants derived from microbes can replace the chemical surfactants, which are ecologically detrimental. The aim of this work was to study the genetic organization responsible for biodegradation of aromatics and biosurfactant production in potential microbes isolated from polluted soil. Bacterial isolates were tested for biosurfactant production, wherein Bacillus sp. AKBS9 and Acinetobacter sp. AKBS16 exhibited highest biosurfactant production potential. Whole genome sequencing and annotations revealed the occurrence of sfp and NPRS gene in the Bacillibactin biosynthetic gene cluster in AKBS9 strain and emulsan biosynthetic gene cluster in AKBS16 strain for biosurfactant production. Various aromatic compound ring cleaving oxygenases scavenging organic molecules could be annotated for strain AKBS16 using RAST annotations.
微生物基因组学有助于分析微生物特性,可应用于污染物的生物修复和石油回收过程。微生物衍生的生物表面活性剂可以替代对生态环境有害的化学表面活性剂。本工作旨在研究从污染土壤中分离出的潜在微生物中负责芳烃生物降解和生物表面活性剂生产的遗传组织。对细菌分离株进行生物表面活性剂生产测试,其中芽孢杆菌 AKBS9 和不动杆菌 AKBS16 表现出最高的生物表面活性剂生产潜力。全基因组测序和注释显示,AKBS9 菌株的芽孢杆菌杆菌素生物合成基因簇和 AKBS16 菌株的乳化素生物合成基因簇中存在 sfp 和 NPRS 基因,用于生物表面活性剂生产。使用 RAST 注释可以注释 AKBS16 菌株用于清除有机分子的各种芳烃化合物环裂解加氧酶。