Metagenomic insight on consortium degradation of soil weathered petroleum and its supplement based on gene abundance change

Exploring the diversity and functional profile of microbial communities of Brazilian soils with high salinity and oil contamination

“…Nitrogen limitation significantly influences the bioremediation process in soils. Functional genes encoding key enzymes in the nitrogen cycle serve as valuable indicators during the degradation process [ 97 ]. In soils, the ideal carbon/nitrogen (C/N) ratio generally employed is 100:10 [ 40 , 41 ].…”

“…Genes related to nitrate reduction were more abundant in RNC soil, including narG , a well-documented component in this pathway [ 111 , 112 ]. The increase in genes associated with the nitrogen cycle, including nirK, nosZ, narG, and norB , has been associated to improved biodegradation process [ 97 ].…”