
The Microbial Ecophysiology Lab studies the microbial communities that drive iron and sulfur biogeochemical cycles in extremely acidic environments, from natural volcanic systems to industrial biomining operations. We combine cutting-edge computational and functional genomics with biochemistry and molecular microbiology to dissect the dynamics and interactions among bacteria, archaea and viruses in these ecosystems.
A central focus of our work is the evolution, taxonomy and genome biology of the Acidithiobacillia class, key model microorganisms in biomining and acidic environments. Using Acidithiobacillia-dominated communities as tractable systems, we investigate microbial community assembly as an ecological and eco-evolutionary problem, asking how dispersal, selection and mobile genetic elements shape community structure, function and mineral recovery.
The lab is led by Prof. Raquel Quatrini, author of over 80 scientific articles and co-editor of the first book on acidophile microbiology.

Lab Members
Postdoctoral fellow
Francisco Issotta Contardo, PhD
Pedro Sepúlveda - Rebolledo, PhD
Dilanaz Arisan, PhD
PhD Students
Camila Rojas Villalobos
Sofía Reyes Impellizzeri
Abraham Zapata Araya
Alejandro Nicolás Pinilla Ojeda (PhageLab)
Celia Larrea Duharte
Gustavo Castro Toro
Estefanía Tisalema Guanopatín
Daniela Jara Henríquez
Master Students
Catalina Lopez Kleim
Undergraduate Students
Catalina Muñoz Sarmiento
Lab Manager
Héctor Carrasco Gallardo
Research Assistants
Gabriel Vergara
Priscilla Bucarey
Grants
FONDECYT R-1241529 [2024-2027]: Physical heterogeneity in biomining biofilms: Towards deciphering extracellular polymer production and the role of diffusible signal factors. (Coinvestigator)
FONDECYT E-13220230 [2023-2025]: Molecular delivery platform based on lipidic nanoparticles for acid mine drainage (AMD) microbial communities engineering and control: proof of concept. (Sponsor Investigator)
FONDECYT R-1221035 [2022-2026]: Acidic microbiomes as model systems in eco-evolutionary studies of community assembly processes. (Principal Investigator)
Collaborations
Beatriz Diez | Santiago, Chile - Universidad Mayor
Mario Vera | Santiago, Chile -Pontificia Universidad Católica de Chile
Ana Moya-Beltrán| Santiago, Chile - Universidad Tecnológica Metropolitana
Matías Castro| Concepción, Chile - Universidad de Concepción
D. Barrie Johnson | Bangor, UK - University of Bangor
J. Kucera | Czech Republic - Masaryk University
Stefan Bertilsson | Uppsalla, Sweden - Swedish University of Agricultural Sciences
Daniel Paredes-Sabja | Texas, US - A&M University
Ernesto Pérez-Rueda | Mérida, Mexico - Universidad Nacional Autónoma de México
Alejandra Giaveno, Ricardo Ulloa | Neuquén, Argentina - Universidad Nacional del Comahue
Pedro Temporetti | Bariloche, Argentina - Universidad Nacional del Comahue
Maria C. Dieguez | Bariloche, Argentina - Universidad Nacional del Comahue


