Article
Ecology
Diego Leiva, Fernando Fernandez-Mendoza, Jose Acevedo, Margarita Caru, Martin Grube, Julieta Orlando
Summary: Lichens host highly diverse microbial communities, with bacteria being one of the most explored groups in terms of their diversity and functioning. Bacterial communities in lichens were found to be different from those in their subjacent substrates, suggesting that lichens may carry some components of their microbiome when propagating, but also acquire part of their bacterial community from the substrates.
Article
Environmental Sciences
Nicholas H. H. Humphries, Steven F. F. Thornton, Xiaohui Chen, Andrew W. W. Bray, Douglas I. I. Stewart
Summary: This study examined the microbial community of arable soils cultivated with barley under different applications of biosolids, simulating a 10-day flood. The results showed that biosolid application did not significantly change the soil microbiome, and the bacterial populations returned to their pre-flood profiles after flooding. This suggests that biosolid application does not increase environmental risk during flooding.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Jiayi Zhao, Xuan Xie, Yuying Jiang, Jiaxin Li, Qi Fu, Yingbo Qiu, Xianheng Fu, Zhiyuan Yao, Zhongmin Dai, Yunpeng Qiu, Huaihai Chen
Summary: Soil warming has complex effects on microbial communities, reducing microbial diversity while increasing the role of dominant microbiomes in regulating nutrient and energy flow. Wetland ecosystems are more sensitive to temperature increases, and changes in microbial communities align with overall trends.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Microbiology
Leandro Gammuto, Carolina Chiellini, Marta Iozzo, Renato Fani, Giulio Petroni
Summary: This study performed a comprehensive screening of all available bacterial genomes to assess the distribution of Azurin coding gene. It was found that the gene was not present in Archaea and Eucarya domains, but present in other bacterial phyla. The observed distribution and phylogenetic data suggest horizontal transfer of the gene between different phyla, although vertical inheritance appears to be the major driving force. Additionally, a shared conserved domain among Azurin members was identified, which plays an important role in the anticancer activity of Azurin.
Article
Microbiology
Helen C. Blaine, Joseph T. Burke, Janani Ravi, Christina L. Stallings
Summary: A fundamental requirement for life is the replication of an organism's DNA. Recent research has identified DciA protein as a potential operator for DNA replication in bacteria, analogous to the helicase loaders in Escherichia coli and Bacillus subtilis. Computational evolutionary analysis revealed the diversity of DciA proteins and highlighted the importance of phylum-specific analyses for understanding bacterial DNA replication.
JOURNAL OF BACTERIOLOGY
(2022)
Article
Microbiology
Yuna Park, Leonid N. Ten, Young Koung Lee, Hee-Young Jung, Myung Kyum Kim
Summary: A new bacterial strain, designated Larkinella humicola sp. nov., was isolated from a soil sample in Gijang-gun, Busan, Republic of Korea. This strain belongs to the genus Larkinella and exhibits Gram-negative, short rod-shaped morphology with pink pigmentation. Genetic and biochemical analysis revealed its close relationship with other species in the Larkinella genus.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Deokjoo Son, Eun Ju Lee
Summary: Understanding the microbial community in Arctic soil is important for predicting the impact of climate change on polar ecosystems. This study found that the microbial community structure and soil characteristics varied depending on plant species and local environments in Arctic soil. Environmental sites had distinct microbial communities, with coal-mined sites having higher abundance of Bacteroidetes and Firmicutes, and seashore-adjacent sites having more Acidobacteria. Soil pH was found to be a more important factor than plant species in determining microbial composition and abundance.
JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Microbiology
Jia-Syuan Chen, Shun-Chern Tsaur, Chau-Ti Ting, Shu Fang
Summary: Gut bacteria play crucial roles in the dietary utilization of hosts, especially in specialist animals. Comparing the gut bacterial communities between specialist and generalist drosophilid flies, this study reveals that specialists have a higher abundance of bacteria associated with complex carbohydrate degradation, amino acid metabolism, vitamin B12 formation, and detoxification. This highlights the importance of gut bacteria in the dietary specialization of fruit flies.
MICROBIOLOGY SPECTRUM
(2022)
Article
Geochemistry & Geophysics
Jingjing Guo, Tian Ma, Nana Liu, Xinying Zhang, Huifeng Hu, Wenhong Ma, Zhiheng Wang, Xiaojuan Feng, Francien Peterse
Summary: Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids of certain soil bacteria and can be used to proxy air temperature and soil pH. This study evaluated the influence of soil pH and aridity on brGDGT distributions in grassland soils in Inner Mongolia. The relative abundance of 6-methyl brGDGTs increased with increasing soil pH and aridity, suggesting that soil pH reconstructions based on this compound may be more reliable. Additionally, different bacterial community compositions responded differently to aridity, indicating the complex factors influencing brGDGT production.
ORGANIC GEOCHEMISTRY
(2022)
Article
Microbiology
Soohyun Maeng, Qingzhen Liu, Yuna Park, Jaewoo Bai, Wan-Taek Im
Summary: A newly isolated bacterial strain, designated as HKS19, was found in ginseng cultivation soil in South Korea, belonging to the genus Sphingomonas. HKS19 showed Gram-stain-negative characteristics, oval-shaped cells, and formed yellow colonies on R2A agar at 30 degrees C. Its growth conditions were observed to be at 30 degrees C, pH 7, and 0% NaCl.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Weilan Li, Leonid N. Ten, Myung Kyum Kim, Seung-Yeol Lee, Hee-Young Jung
Summary: A novel species of Flavobacterium, named Flavobacterium agrisoli sp. nov., was isolated from a soil sample collected on Dokdo Island, South Korea. Based on phenotypic and genomic analyses, this strain demonstrates distinctiveness from other Flavobacterium species and is proposed as a new taxonomic classification.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Engineering, Environmental
Sara Peixoto, Susana Loureiro, Isabel Henriques
Summary: The study highlights the significant effects of Ag2S NPs on the soil microbiome composition, while AgNO3 exerts a stronger influence on both composition and functional parameters over time. Distinct variants of ammoniaoxidizing and nitrite-oxidizing bacteria genes emerged in silver-treated soils, suggesting a potential succession of bacteria with different degrees of silver-tolerance.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Agriculture, Dairy & Animal Science
Hilda Silva Araujo de Melo, Luis Carlos Vinhas itavo, Alinne Pereira de Castro, Camila Celeste Brandao Ferreira itavo, Ruy de Araujo Caldas, Rodrigo Goncalves Mateus, Marcus Vinicius Garcia Niwa, Gabriella Jorgetti de Moraes, Camila da Silva Zornitta, Antonio Leandro Chaves Gurgel, Chaouki Benchaar
Summary: The aim of this study was to evaluate the effect of inclusion of whole oilseeds in the diet on the bacterial diversity of the solid fraction in the ruminal content of steers. It was found that the diversity of rumen bacteria differed when oilseeds were included in the diet compared to a diet without oilseeds or exclusively forage. Corn silage increased the diversity of Firmicutes bacteria, while oilseeds increased the diversity of Bacteroidetes and Proteobacteria.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2023)
Article
Microbiology
Alexa M. Nicolas, Alexander L. Jaffe, Erin E. Nuccio, Michiko E. Taga, Mary K. Firestone, Jillian F. Banfield
Summary: This study focused on Candidate Phyla Radiation (CPR) bacteria and DPANN archaea in soil, which are often overlooked. By concentrating small particles from soil, the researchers were able to identify these organisms as part of the rare soil biosphere with unique metabolic platforms. Some of these predicted symbionts have acquired aerobic capacity through lateral transfer, enabling them to adapt to oxic soil environments.
Article
Microbiology
Maha A. Khalil, Abd El-Raheem R. El-Shanshoury, Maha A. Alghamdi, Fatin A. Alsalmi, Samia F. Mohamed, Jianzhong Sun, Sameh S. Ali
Summary: Nanoparticles, particularly biosynthesized silver nanoparticles (Bio-AgNPs) using marine actinobacteria, have shown significant potential in antimicrobial, antioxidant, insecticidal, and anticancer applications.
FRONTIERS IN MICROBIOLOGY
(2022)