Title:

A Longitudinal Study of the Alder Root Nodule Microbiome

Soil microbes can help or hinder plants depending on environmental conditions, so understanding the seasonal ebbs and flows of microbial soil communities is necessary for maintaining global soil integrity. The soil bacteria Frankia can form root nodules with host plants to supply the plant and the surrounding soil with nitrogen, thus allowing degraded lands to be recolonized by plant life. Previous studies have shown that the nodule microbiomes have different community compositions and different levels of Frankia depending on the environment. More longitudinal studies are needed of the actinorhizal root nodule microbiome in different sites and seasons to be able to better predict nodule community dynamics for future remediation and companion planting projects. This project aims to unveil if there are differences between the root nodule bacterial and fungal communities in New Hampshire alders at the different sampling sites and if there are seasonal influences in the root nodule bacterial and fungal communities.

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