The abstract is read at the publisher; the summary is JClub's.
A 42-day KH2PO4 enrichment experiment in zebrafish (Danio rerio) gut microbiomes shows sediment-dependent shifts in diversity and composition early on, alongside shared functional enrichment.
- Why it matters: Phosphorus pollution is widespread, but how it changes the functional potential of fish gut microbiomes—and whether effects depend on environmental context—remains unclear.
- What they did: Zebrafish were exposed for 42 days to sustained KH2PO4 in water-only versus sediment-associated systems, using shotgun metagenomics with genome-resolved analyses.
- The result: Both contexts showed enrichment of genes/modules tied to P acquisition and turnover, carbon utilization, energy transduction, and biosynthesis, while some aromatic compound degradation and nitrate assimilation potentials decreased; a Mycobacterium population increased in abundance in both backgrounds.
The findingWhy it mattersWhat they didThe result
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