Gene amplicon sequencing from flooded rice paddy mesocosms treated with silicon rich amendments

Plant-based silicon rich soil amendments are a sustainable strategy to decrease rice grain concentrations of inorganic arsenic, but use of these plant based amendments has the potential to influence the microbial community by increase organic carbon, nutrients, and/or electron acceptors. We surveyed the 16S rRNA genes from twelve rice paddies treated with rice husk, rice char, calcium silicate, or untreated control from three biospheres (plaque, rhizosphere, and bulk) and five timepoints over the rice growing season. These data provide an understanding of how silicon amendments influence the soil microbial community, how the rice root microbiome progresses over time, and which organisms are present in the iron plaque at the root surface.

植物基富硅土壤改良剂是降低稻米无机砷含量的可持续策略，但施用此类植物基改良剂可通过提升有机碳、营养物质及/或电子受体水平，对土壤微生物群落产生潜在影响。我们对12个稻田的16S rRNA基因（16S rRNA genes）进行了分析，供试稻田分别施加稻壳、稻炭、硅酸钙或不施加改良剂的空白对照，采样覆盖根表铁膜、根际与非根际土壤三个微生境，并涵盖水稻生育期内的五个采样时间点。本数据集有助于增进对硅基改良剂调控土壤微生物群落的机制、水稻根际微生物组随时间的演替规律，以及根表铁膜中存在的微生物类群的认知。