You need to identify all organisms living or colonizing a given environment or area, or to study the microbial quality of a sample.

For a limited number of organisms, the genome of which is at least partially sequenced, an amplification by PCR or real time PCR of species- specific genetic markers can be performed by BIOMNIGENE.

For a large-scale assessment, (the) high throughput sequencing of regions more or less conserved between species will be favoured by BIOMNIGENE. This approach is referred to as microbiome analysis.