Fig. 2

Biosurfactant-producing ZS1 isolate belongs to the group of Pseudomonas aeruginosa. a The 16S rDNA sequence-based phylogenic analysis of the ZS1 isolate. The isolate is indicated as ZS1 in parentheses, whose nucleotide sequence is available in Genebank (https://www.ncbi.nlm.nih.gov/genbank) with the Accession Number KF668476). b Transcription of rhamnolipid synthesis genes is induced in medium with glucose as sole carbon source. qRT-PCR analysis of RhlA, RhlB, and RhlC gene expression at various time-points after ZS1 growth in MS medium supplemented with glucose