Cover crop roots collected during experiment harvest. 2018. (Nicholas Honvault)

Interactions between belowground traits and rhizosheath fungal and bacterial communities for phosphorus acquisition

Nicolas Honvault, David Houben, Stephane Firmin, Hacene Maglouli, Frederic Laruelle, Joel Fontaine, Anissa Lounes, Arnaud Coutu, Hans Lambers, Michel-Pierre Faucon Phosphorus (P) plays a major role in many ecosystem functions. Understanding and managing ecosystem functioning thus requires gaining insight into P cycling, and especially into the multiple factors involved, such as plant communities, climate, soil properties and soil microbial communities. Interactions between these factors have … Continue reading Interactions between belowground traits and rhizosheath fungal and bacterial communities for phosphorus acquisition

Water availability rather than temperature control soil fauna community structure and prey-predator interactions

Adriane Aupic-Samain, Virginie Baldy, Ninon Delcourt, Paul Henning Krogh, Thierry Gauquelin, Catherine Fernandez, Mathieu Santonja With the ongoing climate change, soil biodiversity could be strongly impacted with major consequences for ecosystem processes. Among soil biodiversity, detritivores such as Collembola (springtails) play a major role in plant litter decomposition. Thus, it is of prime interest to improve our knowledge of the impact of climate change (i.e. … Continue reading Water availability rather than temperature control soil fauna community structure and prey-predator interactions

Experimental set-up (from left to right, from top to bottom) alder trees grown in alder, birch and Douglas fir soil cores, roots from one soil core, experimental core design with two membranes to measure ion exchange and root exclusion cores, and mesocosms being 13CO2 labelled in a chamber.

Nutrient exchange between tree and soil symbionts determine performance feedback in Alder

Ardanuy, Agnès; Walker, Jennifer; Kritzler, Ully; Taylor, Andy; Johnson, David How do plants influence the soil environment in which they grow? Tackling this question has led to the concept of ‘plant-soil feedback’, which describes reciprocal interactions between plants and their soil environment, leading to either positive or negative effects on plant performance. While we know that soil biota can have direct effects on plant nutrition … Continue reading Nutrient exchange between tree and soil symbionts determine performance feedback in Alder