Article
Microbiology
Alba Regueira-Iglesias, Lara Vazquez-Gonzalez, Carlos Balsa-Castro, Nicolas Vila-Blanco, Triana Blanco-Pintos, Javier Tamames, Maria Jose Carreira, Inmaculada Tomas
Summary: This study analyzed the coverage of 16S rRNA gene primers used in oral microbiome studies and identified the best primers. The findings showed that the optimal primers can be utilized for detecting both oral bacteria and archaea, with a wide coverage range.
Article
Environmental Sciences
Emma K. Wear, Matthew J. Church, Beth N. Orcutt, Christine N. Shulse, Markus V. Lindh, Craig R. Smith
Summary: The study reveals that bacteria and archaea in the Clarion-Clipperton Zone demonstrate previously undetected subtle regional-scale biogeography. Variability between regions is driven mainly by differences in the relative abundances of taxa rather than by abundant taxon turnover.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Ecology
Zivile Buivydaite, Mille Anna Lilja, Rumakanta Sapkota, Benni Winding Hansen, Lea Ellegaard-Jensen, Niels Bohse Hendriksen, Paul Henning Krogh, Anne Winding
Summary: Earthworms play an important role in soil ecosystem functioning and are used as indicators of ecosystem health. This study investigates the interactions between earthworms and soil microorganisms by comparing soil with and without earthworms in microcosms. The results show that earthworms increase microbial activity, decrease species richness, and shape soil prokaryotes community structure. Certain bacterial phyla were enriched, while the relative abundance of the archaeal phylum Thaumarchaeota decreased in the presence of earthworms. The study highlights the influence of earthworms on soil microbial communities and their activity, suggesting the need to incorporate earthworm-prokaryote interactions in future soil microbiome studies.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2023)
Article
Parasitology
Koshila Ranasinghe, Nayana Gunathilaka, Deepika Amarasinghe, Wasana Rodrigo, Lahiru Udayanga
Summary: The study assessed midgut bacteria of field-collected and laboratory-reared larvae and adults of Aedes aegypti and Ae. albopictus from Sri Lanka. The data confirm that midgut bacterial diversity in the studied mosquitoes varies according to species, developmental stage, and strain (field vs laboratory).
PARASITES & VECTORS
(2021)
Article
Environmental Sciences
Jennifer J. M. Hathaway, Duane P. Moser, Jennifer G. Blank, Diana E. Northup
Summary: Building 16S rRNA gene libraries has been a major methodology for studying bacterial/archaeal environmental community profiles, with the choice of primers being crucial for community analysis.
GEOMICROBIOLOGY JOURNAL
(2021)
Article
Environmental Sciences
Celine Lavergne, Polette Aguilar-Munoz, Natalia Calle, Frederic Thalasso, Maria Soledad Astorga-Espana, Armando Sepulveda-Jauregui, Karla Martinez-Cruz, Laure Gandois, Andres Mansilla, Rolando Chamy, Maialen Barret, Lea Cabrol
Summary: Freshwater ecosystems play a significant role in methane emissions and this study investigated the effects of temperature on microbial community structure and methane production pathways in sub-Antarctic lake sediments. The research found that temperature had a significant impact on methane production rates, particularly when methanogenic precursors such as acetate and H-2/CO2 were introduced.
ENVIRONMENT INTERNATIONAL
(2021)
Review
Microbiology
Guillaume Tahon, Patricia Geesink, Thijs J. G. Ettema
Summary: The discovery and study of Archaea in the past few decades have greatly expanded our understanding of their cell biology, physiology, ecology, and diversity. However, due to computational limitations and the ongoing discovery of new lineages, a stable archaeal phylogeny has not yet been achieved. Therefore, obtaining consensus on the phylogenetic and taxonomic classification of Archaea should be a high priority for the research community.
ANNUAL REVIEW OF MICROBIOLOGY, VOL 75, 2021
(2021)
Article
Environmental Sciences
Josue Alegria-Gomez, Jose Humberto Castanon-Gonzalez, Juan Alfredo Hernandez-Garcia, Elizabeth Gonzalez-Terreros, Irving Oswaldo Velazquez-Rios, Victor Manuel Ruiz-Valdiviezo
Summary: In this study, the composition patterns of microbial communities in the vertical distribution of La Encantada lake in Mexico were explored, and their relationship with physicochemical properties of the water was investigated. The results showed that the composition of microbial communities varied with depth and physicochemical parameters, which could play a role as biological factors in the trophic states of the lake.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Samet Kalkan
Summary: This study focused on the marine sediments in the Black Sea and explored the value of bacterial diversity for public health and biotechnology applications. Through the collection of sediment samples and the use of multimodal analytical platforms, 26 different bacterial species were identified, including some newly reported species. These findings contribute to a better understanding of microbial life in the southeastern sediments of the Black Sea.
MARINE POLLUTION BULLETIN
(2022)
Article
Limnology
Ping Gao, Lingyun Qu, Guangxun Du, Qinsheng Wei, Xuelei Zhang, Guang Yang
Summary: A study was conducted on the depth-dependent distribution patterns of bacterial and archaeal communities in the deep sea water column around the Ninetyeast Ridge in the Indian Ocean. The bacterial communities were mainly influenced by depth, dissolved oxygen, and nitrite, while the archaeal communities were heavily influenced by multiple environmental variables including depth, dissolved oxygen, nitrite, salinity, phosphate, ammonia, nitrate, and silicate.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2021)
Article
Plant Sciences
Naseebh N. Baeshen, Lina Baz, Ashwag Y. Shami, Ruba A. Ashy, Rewaa S. Jalal, Aala A. Abulfaraj, Mohammed Refai, Mazen A. Majeed, Samah S. Abuzahrah, Hayam Abdelkader, Nabih A. Baeshen, Mohammed N. Baeshen
Summary: This study aimed to characterize the microbial community in the unique Red Sea coastal environment in Jeddah City and predict its response to environmental changes. Metagenomics sequencing of 16S rRNA and ITS rRNA genes revealed that Actinobacteriota and Proteobacteria were the dominant phyla in the soil samples. The diversity of bacterial communities was associated with the soil crust, while fungal communities were influenced by the rhizosphere and showed high abundance of Ascomycota and Basidiomycota.
Article
Environmental Sciences
Ademir Sergio Ferreira Araujo, Ana Roberta Lima Miranda, Arthur Prudencio de Araujo Pereira, Wanderley Jose de Melo, Vania Maria Maciel Melo, Sabrina Hermelindo Ventura, Eudemio Sousa Brito Jr, Erika Valente de Medeiros, Fabio Fernando Araujo, Lucas William Mendes
Summary: This study assessed the microbial community in the rhizosphere of maize and cowpea grown in Cr-contaminated soils using amplicon sequencing. The results showed that the microbial community in the maize rhizosphere clustered together, while the microbial community in the cowpea rhizosphere did not present clear clustering. Furthermore, Cr contamination had different effects on specific bacterial groups in the rhizospheres of maize and cowpea.
Article
Engineering, Environmental
Jenni Inkinen, Sallamaari Siponen, Balamuralikrishna Jayaprakash, Ananda Tiwari, Anna-Maria Hokajarvi, Anna Pursiainen, Jenni Ikonen, Ari Kauppinen, Ilkka T. Miettinen, Jussi Paananen, Eila Torvinen, Mikko Kolehmainen, Tarja Pitkanen
Summary: The study characterized archaea communities in five full-scale drinking water distribution systems, showing that archaea were dominant in non-disinfected cold water samples, with different community structures revealed by DNA and RNA analysis. Diversity of archaea communities was affected by disinfection and temperature, with fewer species in biofilms, indicating only certain members survived in that environment.
Article
Microbiology
Julia Hankel, Bjoern Bodmann, Matthias Todte, Eric Galvez, Till Strowig, Dimitri Radko, Ali Antakli, Christian Visscher
Summary: Initiating metaphylaxis in the first week of life can successfully minimize the clinical signs of Enterococcus cecorum infections causing enterococcal spondylitis in broiler herds. Lincospectin treatment induces significant changes in cecal microbiota composition, with effects of Bacillus licheniformis being most similar to those seen after lincospectin treatment.
Article
Veterinary Sciences
Xiaohui Wen, Shengjun Luo, Dianhong Lv, Chunling Jia, Xiurong Zhou, Qi Zhai, Li Xi, Caijuan Yang
Summary: This study used high-throughput sequencing technology to investigate the gut microbiota of different horse breeds and found variations in microbial composition and function. Thoroughbred horses had a more diverse microbiota, while Hybrid horses showed intermediate diversity. The metabolic pathways also differed significantly between breeds.
FRONTIERS IN VETERINARY SCIENCE
(2022)