Article
Agriculture, Dairy & Animal Science
A. Palmonari, A. Federiconi, D. Cavallini, C. J. Sniffen, L. Mammi, S. Turroni, F. D'Amico, P. Holder, A. Formigoni
Summary: The aim of this study was to assess the potential changes in rumen microbiota and VFA production caused by the use of molasses. The results showed that molasses could impact the rumen microbiota, leading to changes in VFA production and composition. The study highlighted the influence of molasses on rumen microbial community and VFA production.
Article
Microbiology
Stephanie D. Jurburg, Alex Bossers
Summary: Studies of microbiome management in pig hosts have found mixed results, emphasizing the importance of understanding the patterns of microbiome assembly during host development. Successional stages are identified as windows of opportunity for future research.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Microbiology
Hesham Amin, Tina Santl-Temkiv, Christine Cramer, Ditte V. Vestergaard, Gitte J. Holst, Grethe Elholm, Kai Finster, Randi J. Bertelsen, Vivi Schlunssen, Torben Sigsgaard, Ian P. G. Marshall
Summary: Living on a farm is associated with a lower risk of immunoregulatory disorders, with indoor airborne bacteria playing a key role in this protective effect. Farmers' indoor environments had significantly higher bacterial abundance and diversity compared to suburban homes, and contained beneficial intestinal bacterial species. The study provides important insights into bacterial composition, abundance, and diversity across different environments, shedding light on how microbial exposure may impact immune-mediated diseases in both children and adults.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Huan Cui, Cheng Zhang, Juxiang Liu, Shishan Dong, Kui Zhao, Ligong Chen, Zhaoliang Chen, Yucheng Sun, Zhendong Guo
Summary: This study compared the bacterial aerosol concentrations and bacterial communities in pig houses at different growth stages in Hebei Province, China. It was found that bacterial concentrations, community richness, and diversity increased with pig age. The presence of pathogenic bacteria in the microbial aerosols of pig houses highlights the importance of implementing measures to prevent air pollution.
Article
Engineering, Chemical
Ali Behrad Vakylabad, Sabereh Nazari, Esmaeel Darezereshki
Summary: Chloride addition was investigated to enhance the leaching rate of low-grade chalcopyrite ore, resulting in a significant improvement in copper recovery by reducing the precipitation of jarosite.
MINERALS ENGINEERING
(2022)
Article
Ecology
Robert Starke, Victor Satler Pylro, Daniel Kumazawa Morais
Summary: Sequencing 16S rRNA gene amplicons is commonly used to study prokaryotic communities, but gene copy normalization (GCN) does not improve the accuracy of results. The study questions the use of GCN for metataxonomic surveys until a more comprehensive catalogue of copy numbers becomes available.
Article
Microbiology
Limin Wei, Bo Zeng, Siyuan Zhang, Wei Guo, Feng Li, Jiangchao Zhao, Ying Li
Summary: This study compared and analyzed the gut microbiota of wild boar and its offspring using multi-omics technologies. The results showed that the gut microbiota of F4 exhibited host-like dominance with increased abundance of Lactobacillus and Bifidobacterium. Additionally, F4 showed similar metabolic pathways as Duroc. The findings provide reference data for the genetics and evolution of microbiota and microbial-assisted breeding theory.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Parasitology
Sandor Hornok, Andrei D. Mihalca, Jeno Kontschan, Nora Takacs, Denis Fedorov, Olivier Plantard, Attila D. Sandor
Summary: This study provides high-resolution digital pictures and molecular data of male and female I. rugicollis for the first time, and morphological comparison with I. cornutus could not resolve uncertainties in the latter species' validity. Further molecular comparisons with new specimens of I. cornutus are needed to confirm its status. This study represents the first comprehensive molecular phylogenetic analysis of western Palearctic Pholeoixodes species, including I. rugicollis, and confirms the phylogenetic position of the subgenus Eschatocephalus within Pholeoixodes.
PARASITES & VECTORS
(2023)
Article
Environmental Sciences
R. G. Bulgarelli, M. F. A. Leite, M. De Hollander, P. Mazzafera, S. A. L. Andrade, E. E. Kuramae
Summary: The availability of soil phosphorus can affect plant growth, root-soil interactions, and rhizosphere microbial community composition. This study investigated the rhizosphere microbial communities of 24 species of eucalypts under low or sufficient soil phosphorus availability. It was found that eucalypt species identity was the main factor determining the composition of the rhizosphere microbial community, while the effect of phosphorus availability varied among species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Public, Environmental & Occupational Health
Dmitriy V. Volokhov, Lauren R. Lock, Kristin E. Dyer, Isabella K. DeAnglis, Benjamin R. Andrews, Molly C. Simonis, Sebastian Stockmaier, Gerald G. Carter, Cynthia J. Downs, M. Brock Fenton, Nancy B. Simmons, Daniel J. Becker
Summary: This study uncovered additional hemoplasma diversity in bats by targeting rare or undersampled host species.
Article
Gastroenterology & Hepatology
Darja Nikitina, Konrad Lehr, Ramiro Vilchez-Vargas, Laimas Virginijus Jonaitis, Mindaugas Urba, Juozas Kupcinskas, Jurgita Skieceviciene, Alexander Link
Summary: This study characterized the microbiota of gastric cancer using 16S rRNA gene and its transcript and identified differences in bacterial composition. The results showed that there was only partial overlap between DNA and RNA samples and differences between gastric cancer patients and healthy controls depending on the chosen sequencing modality. Furthermore, RNA sequencing was more sensitive for detecting differences in bacterial richness and specific bacteria. Overall, the choice of sequencing modality affects the characterization of the microbiota and the differences between case and control.
WORLD JOURNAL OF GASTROENTEROLOGY
(2023)
Article
Engineering, Environmental
I. M. Garder, B. Gomez-Munoz, L. Stoumann Jensen, I. Regueiro
Summary: Bioacidification of animal slurry has been found to reduce ammonia emissions, but the fertiliser value of bioacidified slurry needs further investigation. A pot experiment with maize plants was conducted to study the N fertiliser value of pig slurry treated with glucose and/or fermented brown juice. The results showed that bioacidified treatments had lower mineral fertiliser equivalence (MFE) value compared to non-bioacidified treatments, likely due to N immobilisation caused by the addition of easily available C. Further studies are needed to determine the optimal substrate inclusion rates and application methods, as well as field studies, before recommending bioacidification as an alternative to traditional acidification methods.
Article
Agriculture, Dairy & Animal Science
Jiaojiao Xu, Jiadi Liang, Wenjun Chen, Xin Wen, Na Zhang, Baohua Ma, Yongde Zou, Jiandui Mi, Yan Wang, Xindi Liao, Yinbao Wu
Summary: In this study, the effect of therapeutic doxycycline on the pig intestinal bacterial community was examined. It was found that doxycycline did not affect the diversity of the microbial community structure, but it did affect bacterial interactions and metabolic pathways. This study provides insight into the impact of doxycycline on the pig intestinal microbiota in pig breeding.
Article
Veterinary Sciences
Qin Fu, Xuesong Yang, Sitong Zhou, Yue Yang, Xiaohong Zhang, Qi Han, Wenbo Ji, Honggui Liu
Summary: The purpose of this study was to determine the effects of a 2-hour short-distance road transportation on the jejunum of weaned piglets. The results showed that transportation did not affect the growth performance of the piglets, but it led to increased stress and inflammatory reactions in the jejunum. There was no oxidative damage or activation of the apoptosis pathway observed. Overall, transportation had minimal impact on the piglets' health and growth.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Microbiology
Kayla M. Williamson, Brandie D. Wagner, Charles E. Robertson, Mark J. Stevens, Marci K. Sontag, Peter M. Mourani, J. Kirk Harris
Summary: The study aimed to increase the sensitivity of bacterial community analysis without impacting community composition or interfering with cluster formation during sequencing. The modified PCR protocol showed increased sensitivity in detecting bacterial communities in airway samples, crucial for studying the highly variable human airway microbiome.
Article
Engineering, Environmental
Tomo Aoyagi, Yoshihiko Mori, Mai Nanao, Yusuke Matsuyama, Yuya Sato, Tomohiro Inaba, Hidenobu Aizawa, Takayuki Hayakawa, Masahiko Moriya, Yasuhide Higo, Hiroshi Habe, Tomoyuki Hori
Summary: The study found that indigenous microorganisms stimulated by lactate play a crucial role in promoting biological immobilization treatment of Se in waste rocks, by reducing the dissolved Se through dissimilatory Se reduction.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Hideyuki Ihara, Ayako Kumagai, Tomoyuki Hori, Kenji Nanba, Tomo Aoyagi, Mitsuru Takasaki, Yoko Katayama
Summary: This study investigated bacterial communities in radioactive Cs-contaminated and non-contaminated soils, revealing lower bacterial diversity and significant differences in bacterial communities in the most contaminated area compared to other areas, with an enrichment of the radio-resistant Geodermatophilus bullaregiensis. Information on soil type, vegetation, and soil-use history enhanced the direct comparison of geographically distant soil bacterial communities exposed to different levels of radioactive contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Microbiology
Shigeru Kawai, Joval N. Martinez, Mads Lichtenberg, Erik Trampe, Michael Kuhl, Marcus Tank, Shin Haruta, Arisa Nishihara, Satoshi Hanada, Vera Thiel
Summary: This study identified two different modes of energy metabolism of Chloroflexus aggregans in hot spring microbial mats through metatranscriptomic analyses and microscale measurements, showing that the organism exhibits phototrophy and chemomixotrophy under dynamic environmental conditions.
Article
Engineering, Environmental
Tomo Aoyagi, Yoko Katayama, Hidenobu Aizawa, Mitsuru Takasaki, Tomoyuki Hori
Summary: The study investigated the ecological roles of denitrification-dependent sulfur oxidizers in tsunami-deposited marine sediment with nitrate amendment. Through time-resolved high-sensitivity C-13-bicarbonate probing of rRNA, the research revealed the trophic relationship between sulfur oxidizers and sulfate reducers, leading to the restoration of marine ecosystem function.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Toshikazu Suenaga, Takumi Ota, Kohei Oba, Kentaro Usui, Toshiki Sako, Tomoyuki Hori, Shohei Riya, Masaaki Hosomi, Kartik Chandran, Susanne Lackner, Barth F. Smets, Akihiko Terada
Summary: This study investigated the phylogeny of resident N2O-reducing bacteria in an anammox microbial community and quantified individually the processes of N2O production and consumption. The results showed that N2O-reducing bacteria primarily belonged to Burkholderiaceae and Chloroflexus genera, and other less abundant strains in Rhodoferax, Azospirillum, Lautropia, and Bdellovibrio also likely acted as N2O sinks. The study also introduced a novel N-15 tracer method to quantify N2O production and consumption rates, providing insights into the potential N2O-reducing activity in anammox-based processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Mukseet Mahmood, Shunsuke Taki, Satoshi Nakai, Takehiko Gotoh, Wataru Nishijima, Akira Umehara, Tomo Aoyagi, Yuya Sato, Tomoyuki Hori, Yoko Katayama, Reka Hajdu-Rahkama, Jaakko A. Puhakka
Summary: In the Seto Inland Sea, Japan, chemical oxygen demand has increased while dissolved oxygen concentrations in bottom water have also increased. This study found that changes in redox conditions led to an increase in organic carbon in sediment, with sulfur-oxidizing bacteria potentially playing a role. Experiments showed that autotrophic bacteria stimulation, especially sulfur-oxidizing bacteria, increased sedimentary organic carbon and dissolved organic carbon in overlying water.
MARINE POLLUTION BULLETIN
(2021)
Article
Microbiology
Yong Guo, Hideyuki Ihara, Tomo Aoyagi, Tomoyuki Hori, Yoko Katayama
Summary: This study presents the draft genome sequences of two sulfur-oxidizing chemolithoautotrophic bacteria, Sulfurovum spp. TSL1 and TSL6, isolated from tsunami-launched marine sediment in the Great East Japan earthquake.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Microbiology
So Muramatsu, Setsuko Hirose, Takao Iino, Moriya Ohkuma, Satoshi Hanada, Shin Haruta
Summary: A novel bacterium strain N10(T) containing bacteriochlorophyll was isolated from a hot spring in Nagano Prefecture, Japan. The strain exhibited aerobic anoxygenic phototrophic characteristics and could not grow anaerobically even under illumination. Genome analysis revealed the presence of genes related to bacteriochlorophyll and carotenoid biosynthesis, light-harvesting complexes, and type-2 photosynthetic reaction centre. Phylogenetic analysis placed strain N10(T) in a distinct lineage near Tabrizicola and Xinfangfangia genera and some species in the genus Rhodobacter. The strain showed low sequence identity with species in the family Rhodobacteraceae based on 16S rRNA gene. Accordingly, a new genus and species, Neotabrizicola shimadae, are proposed for strain N10(T).
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2022)
Article
Microbiology
Shigeru Kawai, Mikako Ishikawa, Satoshi Hanada, Shin Haruta
Summary: A novel thermophilic chemotrophic bacterium, Hydrogenophilus thiooxidans sp. nov., was isolated from Nakabusa Hot Spring in Japan. The bacterium can grow both chemoheterotrophically and autotrophically under different conditions.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Megumi Kono, Joval N. Martinez, Takeshi Sato, Shin Haruta
Summary: This study presents the genome sequence of a thermophilic unicellular cyanobacterium isolated from a thermal pool at Yellowstone National Park.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Agronomy
Shota Shirane, Noriaki Momma, Toshiyuki Usami, Chiharu Suzuki, Tomoyuki Hori, Tomo Aoyagi, Seigo Amachi
Summary: Anaerobic soil disinfestation (ASD) is an ecofriendly alternative to chemical fumigation for eliminating soil-borne plant pathogens. This study found that caproate, produced by a specific strain of bacteria, is a key disinfestation factor in ethanol-based ASD, and the direct application of caproate to soil could be a promising strategy for rapid and stable soil disinfection.
Article
Microbiology
Md. Gahangir Alam, Shin Haruta
Summary: We report the whole-genome sequence of a thermophilic chemolithotrophic sulfate-reducing bacterium, Thermodesulfomicrobium sp. strain WS (class Deltaproteobacteria), isolated from the Onikobe geothermal field in Miyagi Prefecture, Japan. The genome consists of a 2,357,780-bp chromosome with a GC content of 62.9% and 2,196 protein-coding sequences.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2023)
Article
Engineering, Environmental
Xinyi Zhou, Taku Fujiwara, Taira Hidaka, Fumitake Nishimura, Tomohiro Nakanishi, Akihiko Terada, Tomoyuki Hori
Summary: In this study, a microaerobic activated sludge process (MAS) was proposed as a pretreatment method to retain NH4-N from high-strength nitrogenous wastewater. The MAS systems achieved high NH4-N retention rates and TOC removal rates. The emissions of CO2 and N2O during MAS were evaluated, and the mechanisms of N2O emission from each reactor were investigated. The study highlighted the importance of N2O mitigation in the MAS process, especially under acidic conditions.
Article
Engineering, Environmental
Ralph Rolly Gonzales, Keizo Nakagawa, Kazuo Kumagai, Susumu Hasegawa, Atsushi Matsuoka, Zhan Li, Zhaohuan Mai, Tomohisa Yoshioka, Tomoyuki Hori, Hideto Matsuyama
Summary: This study demonstrates a hybrid osmotically assisted reverse osmosis (OARO) and reverse osmosis (RO) process for the enrichment and recovery of ammoniacal nitrogen in wastewater, resulting in energy-saving and economic benefits.
Article
Ecology
Mar Benavides, Louis Conradt, Sophie Bonnet, Ilana Berman-Frank, Stephanie Barrillon, Anne Petrenko, Andrea Doglioli
Summary: The study reports a unique case of worker-dependent microbiota in the ant Diacamma cf. indicum from Japan. The dominant bacterium is found in the hindgut of workers but is scarce or absent in the reproductive castes, indicating a novel pattern of ant-associated bacterial symbiosis.
ISME COMMUNICATIONS
(2021)