Polyamine-transforming bacterioplankton in seawater Transcriptome or Gene expression. marine metagenome

Putrescine, spermidine, and spermine are short-chained aliphatic polyamines that are ubiquitous components in cells and seawater. To study the genes and taxa involved in the transformations of different PA compounds, we collected surface water samples from a well-studied site in open ocean in the Gulf of Mexico and performed the microcosm incubations of bacterioplankton onboard in the dark at in situ temperature with or without amendments putrescine (PUT), spermidine (SPD), and spermine (SPM) in May, 2013.