The interaction between dissolved organic matter (DOM) and microbial communities is a critical yet understudied driver of biogeochemical cycling in aquatic ecosystems. Understanding these interactions is essential to elucidating chemical and microbial dynamics that sustain ecosystem functioning. Here, we combined non‐targeted ultrahigh‐resolution mass spectrometry (FT‐ICR MS)‐based environmental metabolome analysis with microb...

Summary Metagenomics has dramatically expanded the known virosphere, but freshwater viral diversity and their ecological interaction with hosts remain poorly understood. Here, we conducted a metagenomic exploration of planktonic dsDNA prokaryotic viruses by sequencing both virion ( Ca . Fonsibacter and Ca . Nitrosoarchaeum). Comparison with viral genomes derived from published metagenomes revealed viral phylogeographic connect...