title: Arkansas rice rhizosphere and root plaques
organism: uncultured bacterium
description: U-IF-root plaque (Unamended-intermittent flood): Root plaque materials were collected from a series of plots that had not been exposed to any As-containing products for at least the 20 years and had soil-As concentrations of ~5 mg kg-1. The plots were flooded and allowed to dry until surface cracking was evident and were then re-flooded. This irrigation scheme continued for the entire 2008 growing season. Community DNA was collected from adherent root plaque material and sequenced for 16S rRNA. This sample represents the materials collected from one of three replicate plots.