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Meta-omics reveals role of photosynthesis in microbially induced carbonate precipitation at a CO-rich geyser.
ISME Commun
January 2024
Department of Plant and Microbial Biology, North Carolina State University, 112 Derieux Place, Thomas Hall, Raleigh, NC 27607, United States.
Microbially induced carbonate precipitation (MICP) is a natural process with potential biotechnological applications to address both carbon sequestration and sustainable construction needs. However, our understanding of the microbial processes involved in MICP is limited to a few well-researched pathways such as ureolytic hydrolysis. To expand our knowledge of MICP, we conducted an omics-based study on sedimentary communities from travertine around the CO-driven Crystal Geyser near Green River, Utah.
View Article and Find Full Text PDFProbing the Dual Role of Ca in the LH1-RC Complex by Constructing and Analyzing Ca-Bound and Ca-Free LH1 Complexes.
Biomolecules
January 2025
Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
The genome of the mildly thermophilic hot spring purple sulfur bacterium, (.) , contains a multigene family that encodes a series of α- and β-polypeptides, collectively forming a heterogeneous light-harvesting 1 (LH1) complex. The LH1, therefore, offers a unique model for studying an intermediate phenotype between phototrophic thermophilic and mesophilic bacteria, particularly regarding their LH1 transition and moderately enhanced thermal stability.
View Article and Find Full Text PDFTogether throughout the year: seasonal patterns of bacterial and eukaryotic microbial communities in a macrotidal estuary.
Environ Microbiome
January 2025
Université de Caen Normandie, Laboratoire MERSEA UR 7482, Centre de Recherches en Environnement Côtier, 14530, Luc-sur-Mer, France.
Background: Estuaries are complex ecosystems linking river and marine environments, where microorganisms play a key role in maintaining ecosystem functions. In the present study, we investigated monthly 8 sites at two depth layers and over a one-year period the bacterial and eukaryotic community dynamics along the Seine macrotidal estuary (Normandy, France). To date, the taxonomy of the microbial diversity present in this anthropized estuary remains elusive and the drivers of the microbial community structure are still unknown.
View Article and Find Full Text PDFEffect of temperature and CO concentration on biological nutrient removal from tertiary municipal wastewater using microalgae .
Biotechnol Notes
December 2024
Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
This study investigates the potential of phototrophic microalgae, specifically Chlorella protothecoides, for biological wastewater treatment, with a focus on the effects of air temperature and CO concentration on nutrient removal from tertiary municipal wastewater. Utilizing both the Monod and Arrhenius kinetic models, the research examines how temperature and nutrient availability influence microalgal growth and nutrient removal. The study finds that optimal biomass productivity occurs at 25 °C, with growth slowing at higher temperatures (30 °C, 40 °C, and 45 °C).
View Article and Find Full Text PDFComprehensive Insights into Potential Metabolic Functions of Myxococcota in Activated Sludge Systems.
Microbes Environ
January 2025
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST).
Myxobacteria, belonging to the phylum Myxococcota, are ubiquitous in soil, marine, and other environments. A recent metagenomic sequencing ana-lysis showed that Myxococcota are predominant in activated sludge systems; however, their metabolic traits remain unclear. In the present study, we exami-ned the potential biological functions of 46 metagenomic bins of Myxococcota reconstructed from activated sludge samples from four municipal sewage treatment plants.
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