Publications by authors named "Rosa I Leon-Zayas"
Oil reservoirs contain microbial populations that are both autochthonously and allochthonously introduced by industrial development. These microbial populations are greatly influenced by external factors including, but not limited to, salinity and temperature. In this study, we used metagenomics to examine the microbial populations within five wells of the same hydrocarbon reservoir system in the Gulf of Mexico.
View Article and Find Full Text PDFOil reservoirs have been shown to house numerous microbial lineages that differ based on the in-situ pH, salinity and temperature of the subsurface environment. Lineages of Firmicutes, including Clostridiales, have been frequently detected in oil reservoirs, but are typically not considered impactful or relevant due to their spore-forming nature. Here we show, using metagenomics, a high temperature oil reservoir of marine salinity contains a microbial population that is predominantly from within the Order Clostridiales.
View Article and Find Full Text PDFArticle Synopsis
- The study investigates the diversity and metabolic capabilities of archaea in marine subsurface sediments from the Costa Rica margin, revealing 31 metagenome-assembled genomes (MAGs) across six different archaeal lineages.
- It highlights the potential for Lokiarchaeota to anaerobically degrade hydrocarbons, suggesting potential symbiotic relationships with bacteria that use nitrate, nitrite, and sulfite.
- Additionally, it describes the Bathyarchaeota lineage's unique incomplete methanogenesis pathway and its potential link between methanogenic and acetogenic processes, enhancing our understanding of marine benthic archaea.