Diversity, Ecology and Evolution of Microbes

We have broad interest in different questions on the ecology and evolution of microbial life, from the origin of microbial diversity and its evolution since life emerged on Earth to the role of microbial communities in biogeochemical cycles. We combine complementary approaches including the exploration of extant prokaryotic and eukaryotic diversity by metabarcoding analysis, metagenomics, single cell ‘omics’ and phylogenomics to infer microbial functions and to elucidate the order of emergence of the different microbial groups and unravel their early evolutionary history. We have also broad interdisciplinary questions, in particular at the biology-geology interface.

The DEEM team, initially co-founded by Puri Lopez-Garcia and David Moreira, is one of the seven research components in the Ecology, Systematics and Evolution unit (UMR 8079, CNRS – Université Paris-Sud – AgroParisTech).

Latest in press

Vampirococcus lugosii, the vampire bacterium unveiled in Nature Comms. With some historical anecdotes.

Jolien and Laura contributed to a study of the conoid origin in apicomplexans (PLoS Biol)

In collaboration with N. Annenkova, we explored the prokaryotic and eukaryotic communities in sediments (ISME J) and protist planktonic communities (Environ Microbiol) along latitudinal and vertical gradients in Lake Baikal

Crystal Ball: Physical connections: prokaryotes parasitizing their kin, perspectives on intimate prokaryotic symbioses by Puri and David (Environ Microbiol Rep)

Field trips

December 2019 - Salar de Huasco, Chile: Guided by Cristina Dorador and her team, we have sampled microbial mats and sediments along a salinity gradient in the high altitude (3800 m) Salar de Huasco in Chile.

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Open positions

We are currently looking for motivated candidates to develop a PhD project on the adaptations to polyextreme environments in the Danakil Depression (Ethiopia) and the metabolism of novel microbial lineages via metagenomic approaches.

If you are a motivated graduate or PhD student or a young postdoc interested in our research activities and wishing to develop an original research project, please do not hesitate to contact us for an internship, a prospective position or to prepare an application to funding agencies.

Contact us

Address :
DEEM team - Unité d’Ecologie, Systématique et Evolution
Rue Doyen André Guinier, bâtiment 360
91400 Orsay, France

Phone: +33 (0)1 69 15 76 08