Taking a closer look at plant-sediment interactions in the rhizosphere

The rhizosphere refers to the narrow region of soil or sediment surrounding the plant roots that directly interact with the roots, both chemically and biologically. Although this region is a hotspot for carbon and nutrient cycling, we know very little about this zone. This post describes a new study that collects information from within the rhizosphere using novel optode imagery.

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Microbes, marshes, and mangroves: Implications for coastal carbon storage

Salt marshes and mangroves are coastal ecosystems known to store excess carbon dioxide from the atmosphere, thus helping to reduce negative consequences of climate change. Despite their importance, the relative distribution of marshes and mangroves is changing due to increasing temperatures and sea level rise. It is unclear, though, what these shifts mean for carbon storage. Since microorganisms are crucial in soil carbon cycling, we need to better understand how they function in response to whether marshes or mangroves dominate. A research team in Florida set out to address this question, finding significant changes to the microbial community.

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