De Anda, Valerie


Publications
4

Asgard archaea modulate potential methanogenesis substrates in wetland soil

Citation
Valentin-Alvarado et al. (2023).
Names
“Atabeyarchaeia”
Abstract
AbstractThe roles of Asgard archaea in eukaryogenesis and marine biogeochemical cycles are well studied, yet their contributions in soil ecosystems are unknown. Of particular interest are Asgard archaeal contributions to methane cycling in wetland soils. To investigate this, we reconstructed two complete genomes for soil-associated Atabeyarchaeia, a new Asgard lineage, and the first complete genome of Freyarchaeia, and defined their metabolismin situ. Metatranscriptomics highlights high expressi

Expansion of Armatimonadota through marine sediment sequencing describes two classes with unique ecological roles

Citation
Carlton et al. (2023). ISME Communications 3 (1)
Names
“Zipacnadum” “Zipacnadum vermilionense” “Hebobacterum” “Hebobacterum abditum” “Zipacnadia” “Zipacnadales” “Zipacnadaceae” “Hebobacteria” “Hebobacterales” “Hebobacteraceae”
Abstract
AbstractMarine sediments comprise one of the largest environments on the planet, and their microbial inhabitants are significant players in global carbon and nutrient cycles. Recent studies using metagenomic techniques have shown the complexity of these communities and identified novel microorganisms from the ocean floor. Here, we obtained 77 metagenome-assembled genomes (MAGs) from the bacterial phylum Armatimonadota in the Guaymas Basin, Gulf of California, and the Bohai Sea, China. These MAGs

New globally distributed bacterial phyla within the FCB superphylum

Citation
Gong et al. (2022). Nature Communications 13 (1)
Names
“Blakebacteria” “Joyebacteria” “Arandabacterum” “Blakebacterales” “Joyebacterales” “Orphanbacterota” “Blakebacteraceae” “Joyebacteraceae” “Orphanbacteria” “Blakebacterum” “Joyebacterum” “Orphanbacterales” “Blakebacterum guaymasense” “Joyebacterum haimaense” “Orphanbacteraceae” “Blakebacterota” “Arandabacterum bohaiense” “Orphanbacterum” “Arandabacteria” “Arandabacterales” “Arandabacterota” “Arandabacteraceae” “Joyebacterota” “Orphanbacterum longqiense”
Abstract
AbstractMicrobes in marine sediments play crucial roles in global carbon and nutrient cycling. However, our understanding of microbial diversity and physiology on the ocean floor is limited. Here, we use phylogenomic analyses of thousands of metagenome-assembled genomes (MAGs) from coastal and deep-sea sediments to identify 55 MAGs that are phylogenetically distinct from previously described bacterial phyla. We propose that these MAGs belong to 4 novel bacterial phyla (Blakebacterota, Orphanbact

New globally distributed bacteria with high proportions of novel protein families involved in sulfur and nitrogen cycling

Citation
Gong et al. (2022).
Names
Abstract
Abstract Microbes are the most abundant form of life on Earth and play crucial roles in carbon and nutrient cycling. Despite their crucial role, our understanding of microbial diversity and physiology on the ocean floor is limited. To address this gap in knowledge, we obtained 55 novel bacterial metagenome-assembled genomes (MAGs) from coastal and deep sea sediments. Phylogenomic analyses revealed they belong to four new and one poorly described bacterial phyla. Comparison of their rRNA