Sarahi L. Garcia

A streamlined and abundant Nitrosopumilus population retains vitamin biosynthesis under high purifying selection in the Baltic Sea

Baltic Sea microbial cohorts exhibit catabolic specialization and anabolic interdependencies across environmental gradients

Widespread potential for phototrophy and convergent reduction of lifecycle complexity in the dimorphic order Caulobacterales

The paper analyzes hundreds of Caulobacterales species to reveal ecological and evolutionary patterns, including widespread phototrophy and convergent loss of dimorphism.

Low anabolic independence emerges when cultivating more than three bacterial species together

The paper cultivates microbial communities from the Baltic Sea and finds that species in multi-species cultures have smaller genomes and rely on metabolic partners.

The ecological success of freshwater microorganisms is mediated by streamlining and biotic interactions

This study links genome size to microbial prevalence and community structure in freshwater ecosystems, showing that streamlined genomes promote cosmopolitanism and interdependencies.

Profiling trace organic chemical biotransformation genes, enzymes and associated bacteria in microbial model communities

The paper investigates biotransformation of trace organic chemicals by microbial communities, identifying key genes, enzymes, and bacteria involved in their degradation.

Bacterial ecology and evolution converge on seasonal and decadal scales

The paper analyzes a two-decade freshwater lake metagenome dataset to show that ecological and evolutionary processes in microbial communities operate on seasonal and decadal scales.