Metagenome-assembled genomes from Spartina alterniflora salt marsh roots and sediments along the U.S. Atlantic coast.

Spartina alterniflora is the dominant plant in low-elevation salt marshes along the U.S. Atlantic coast. Here, we present 434 metagenome-assembled genomes assembled from 36 metagenomic libraries of S. alterniflora sediment and root samples in Georgia, Virginia, and Massachusetts. Samples were collected across natural environmental stress gradients at all sites.