Gabin Piton

We lack estimates of root carbon stocks in temperate agroforestry systems. To get such estimates for crops, perennial herbaceous and trees, we dug deep pits in the stony Mediterranean soil of our young agroforestry experimental system and sorted out all their roots! The results in this new paper :

Taxonomic and environmental distribution of bacterial amino acid auxotrophies - Nature Communications Many microorganisms are auxotrophic, that is, unable to synthesize the compounds they require for growth. Here, Ramoneda et al. predict amino acid biosynthetic capabilities of over 26,000 bacterial ge...

First paper we've found that validates auxotrophy predictions from genomes. in non-host associated communities (e.g. soils) auxotrophy is rare. I believe the assumption of prevalent auxotrophies emerging out of pervasive cross-feeding needs to be reconsidered.. www.nature.com/articles/s41...

Un plaisir d'écrire ces chroniques radio avec Tiphaine Chevalier 👇

Thresholds of functional trait diversity driven by land use intensification - Nature Ecology & Evolution Land use intensification is a major driver of biodiversity change and ecosystem functioning. Here the authors identify thresholds of grassland plant community structure and stability in response to la...

Our new paper is out to day in Nature Ecology and Evolution!

It is called: Thresholds of functional trait diversity driven by land use intensification

⬇️
www.nature.com/articles/s41...
#FunctionalTraits 🌐 ➕📏

@inrae-france.bsky.social @urep.bsky.social @cnrsecologie.bsky.social @bexplo.bsky.social

Soil microbial responses to multiple global change factors as assessed by metagenomics - Nature Communications Soils are usually exposed to multiple global change factors (like warming or contamination by pollutants), but the response of soil communities to combined global change factors is poorly understood. ...

Our paper on the effect of multiple global change factors on soil prokariotes and viruses, just published in @natcomms.nature.com !

@mrillig.bsky.social

www.nature.com/articles/s41...

La respiration du sol (épisode 1) Cette semaine, Tiphaine Chevalier nous parle du sol qui respire et des 5 éléments nécessaires à sa santé.

La nouvelle chronique "sols" sur @euradio.bsky.social est disponible.
Elle porte sur la respiration du sol.
En deux épisodes écrits avec @gabin-piton.bsky.social (Eco&Sols) :
euradio.fr/emission/9wD...

An image of a wheat field is to the right. On the left, against a beige backdrop, the text says, 'Regenerative agriculture, does it work for farmers and nature? New BES report looks at the evidence'

Is #RegenerativeAgriculture the solution to delivering for both food and nature?

A new report by the British Ecological Society brings together 40 academics, practitioners and farmers across the UK to explore the evidence. 👇

https://shorturl.at/s9TM4

go.bsky.app/MkLHiKU

A new study led by @fabien-ferchaud.bsky.social estimated soil organic carbon storage rates of perennial bioenergy crops between 0.26 tC/ha/yr (North France) and 0.96 tC/ha/yr (South France), mainly explained by higher C inputs but weakened by associated SOC priming.

Check it out on open access 👇

New paper in diamond open-access @peercomjournal.bsky.social
Reducing mineral fertilizer use in mountain grasslands could improve the ability of their soil to maintain their multifunctionality during drought.
Last chapter of my PhD 5 y latter. #NewPI never give up publish your science! #Soilscience

À l'occasion de la Journée internationale des droits des femmes, l'@ird-fr.bsky.social met en lumière les expériences et réflexions de 4 chercheuses, sur la place des femmes dans les sciences.

1. Lydie LARDY - Chercheuse en sciences du sol (IRD) dans notre unité, affectée en Côte d’Ivoire.

2...
🧵

📢2 postdoc positions with Nick Bouskill at OSU: on disturbance and microbes hr.oregonstate.edu/open-postdoc... and on hillslopes and biogechemical processes (modelling) hr.oregonstate.edu/open-postdoc...

Rapid evolution of bacterial mutualism in the plant rhizosphere - Nature Communications Beneficial plant-microbe interactions are common in nature, but direct evidence for the evolution of mutualism is scarce. Here, Li et al. experimentally evolve a rhizospheric bacterium and find that i...

Rapid evolution of bacterial mutualism in the plant rhizosphere www.nature.com/articles/s41...

Interested in ultra long read #Metagenomic and Metagenome-assembled genomes (MAGs) from soils ? Our new protocol is for you ! 👇

Decadal persistence of grassland soil organic matter derived from litter and pyrogenic inputs - Nature Geoscience Plant litter-derived mineral-associated organic matter that formed in the first year and pyrogenic organic inputs both persist on a decadal scale in grassland soil via distinct mechanisms, according t...

www.nature.com/articles/s41...
While not all new soil carbon persists, 'sequestered', in the soil, there are ways to confidently measure durable new carbon fractions and increase confidence in measurements of soil carbon as a climate solution, when measured correctly. #soil #science #carbon

Yes! A very important point. I think soil is so stressful for microbes. I became more and more convinced that surviving the multiple stresses could be a very strong driver of microbial strategies there. Max growth might only be beneficial in some hot spots and hot moments. Nice to broaden the focus.

Dynamics of bacterial growth, and life-history tradeoffs, explain differences in soil carbon cycling due to land-use Abstract. Soil contains a considerable fraction of Earth’s organic carbon. Bacterial growth and mortality drive the microbial carbon pump, influencing carb

Interesting paper. This inference stood out for me:

"Result suggests a fitness paradox whereby some bacteria can optimize fitness in soil by minimizing mortality rather than maximizing growth."

academic.oup.com/ismecommun/a...

The complementarity hypothesis reversed: root trait similarity in species mixtures promotes soil organic carbon in agroecosystems Increasing species diversity in agroecosystems appears as a promising venue to restore or increase soil organic carbon (SOC). It has been hypothesized…

Meta-analysis out! Complementarity hypothesis appeared reversed for species mixture effect on SOC. We found that high root mycorrhization and tissue density have + effect on SOC. And combining similar values for these traits seems preferable ! Important finding for climate mitigation strategy.

My morning read. A must! All the results in this paper are so interesting and the writing is so clear. And I agree 100% with the related post by @frantecol.bsky.social Good sciences take time, but our system makes it very difficult. In this case, it was so worth keeping up the effort. Inspiring!

Root exudates from drought-affected plants increase soil respiration across a range of grassland species Root exudates play an important role in ecosystem carbon (C) cycling. Drought can alter the quality and quantity of root exudation, but it is not clea…

Really nice to see the second paper of PhD student Fangbin Hou out in SBB!!!

She did a massive experiment and found that across 17 grassland species, root exudates from plants that experienced drought trigger more microbial respiration. (1)
www.sciencedirect.com/science/arti...

I also set up an account for my unit Eco&Sols.
Follow us : @umr-ecosols.bsky.social !
70 permanent staff and many brilliant students & postdocs working on functional ecology and biogeochemistry in agroecosystems, from the biodiversity in soil aggregates to plant-soil interactions & global C cycle.

www.sciencedirect.com/science/arti...

Life history strategies of soil bacterial communities across global terrestrial biomes - Nature Microbiology Analysis of metagenomes from across the globe reveals the spectrum of soil microbial functional diversity based on community aggregated traits.

www.nature.com/articles/s41...

Life history strategies of soil bacterial communities across global terrestrial biomes - Nature Microbiology Analysis of metagenomes from across the globe reveals the spectrum of soil microbial functional diversity based on community aggregated traits.

Hi bluesky! I will only share news on my research here. My main topics are microbial ecology and biogeochemistry. My current research digs into the functioning of root-soil system in deep horizons of agroforestry systems and the global life history strategies of soil bacteria.
Recent publications 👇