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JOURNAL ARTICLE
Min-Jin Kwak, Dong-Jin Ha, Min Young Park, Ju Young Eor, Kwang-Youn Whang, Younghoon Kim
Upregulation of the nutritional value of feed is the major target of various studies in the livestock industry, and dietary enzyme supplementation could aid in digesting the nondegrading nutrients of grains in feed ingredients. Dried distillers' grains with solubles (DDGS) is a byproduct of the fermentation process in the beverage industry and can be used as a large supply source of fiber in feed. Therefore, we conducted an experiment with male broiler chickens to investigate the effect of various types of enzymes on DDGS and compare the efficacy of single enzyme and multienzyme complexes on growth performance and gut environments in broiler chickens...
March 2024: Journal of Animal Science and Technology
#22
REVIEW
Sriniwas Pandey, Hyunok Doo, Gi Beom Keum, Eun Sol Kim, Jinok Kwak, Sumin Ryu, Yejin Choi, Juyoun Kang, Sheena Kim, Na Rae Lee, Kwang Kyo Oh, Ju-Hoon Lee, Hyeun Bum Kim
Antibiotic resistance (AR) is a complex, multifaceted global health issue that poses a serious threat to livestock, humans, and the surrounding environment. It entails several elements and numerous potential transmission routes and vehicles that contribute to its development and spread, making it a challenging issue to address. AR is regarded as an One Health issue, as it has been found that livestock, human, and environmental components, all three domains are interconnected, opening up channels for transmission of antibiotic resistant bacteria (ARB)...
March 2024: Journal of Animal Science and Technology
#23
JOURNAL ARTICLE
Jones Anderson Monteiro Siqueira, Dielle Monteiro Teixeira, Guilherme Junior Leite da Piedade, Cintya de Oliveira Souza, Tuane Carolina Ferreira Moura, Marcia de Nazaré Miranda Bahia, Danielle Murici Brasiliense, Denise Suéllen Amorim de Sousa Santos, Lena Lillian Canto de Sa Morais, Dorotéa de Fátima Lobato da Silva, Bruno Santana Carneiro, Kenny da Costa Pinheiro, Edivaldo Costa Sousa Junior, Clístenes Pamplona Catete, Ricardo José de Paula Souza E Guimarães, James Lima Ferreira, Wanderley Dias das Chagas Junior, Raiana Scerni Machado, Fernando Neto Tavares, Hugo Reis Resque, Patrícia Dos Santos Lobo, Sylvia de Fátima Dos Santos Guerra, Luana Silva Soares, Luciana Damascena da Silva, Yvone Benchimol Gabbay
AIMS: The present study aimed to use a conventional and metagenomic approach to investigate the microbiological diversity of water bodies in a network of drainage channels and rivers located in the central area of the city of Belém, Northern Brazil, which is considered one of the largest cities in the Brazilian Amazon. METHODS AND RESULTS: In eight of the analyzed points, both bacterial and viral microbiological indicators of environmental contamination, the physical-chemical and metals were assessed...
April 16, 2024: Journal of Applied Microbiology
#24
Irena Jacukowicz-Sobala, Elżbieta Kociołek-Balawejder, Ewa Stanisławska, Alicja Seniuk, Emil Paluch, Rafal J Wiglusz, Ewa Dworniczek
No abstract text is available yet for this article.
April 15, 2024: Science of the Total Environment
#25
JOURNAL ARTICLE
Yuxiao Xu, Di Liu, Xiaofang Yuan, Yijun Yang, Tian Li, Yamin Deng, Yanxin Wang
Significant spatial variability of groundwater arsenic (As) concentrations in South/Southeast Asia is closely associated with sedimentogenesis and biogeochemical cycling processes. However, the role of fine-scale differences in biogeochemical processes under similar sedimentological environments in controlling the spatial heterogeneity of groundwater As concentrations is poorly understood. Within the central Yangtze Basin, dissolved organic matter (DOM) and microbial functional communities in the groundwater and solid-phase As-Fe speciation in Jianghan Plain (JHP) and Jiangbei Plain (JBP) were compared to reveal mechanisms related to the spatial heterogeneity of groundwater As concentration...
April 14, 2024: Science of the Total Environment
#26
JOURNAL ARTICLE
Huiyu Liang, Yanyan Jia, Samir Kumar Khanal, Dongqi Huang, Lianpeng Sun, Hui Lu
The cost-effective and environment-friendly sulfur-driven autotrophic denitrification (SdAD) process has drawn significant attention for advanced nitrogen removal from low carbon-to-nitrogen (C/N) ratio wastewater in recent years. However, achieving efficient nitrogen removal and maintaining system stability of SdAD process in treating low C/N landfill leachate treatment have been a major challenge. In this study, a novel electrochemical-coupled sulfur-driven autotrophic denitrification (ESdAD) system was developed and compared with SdAD system through a long-term continuous study...
April 10, 2024: Water Research
#27
JOURNAL ARTICLE
Yuke Zhu, Mingjing Ke, Zhitao Yu, Chaotang Lei, Meng Liu, Yaohui Yang, Tao Lu, Ning-Yi Zhou, W J G M Peijnenburg, Tao Tang, Haifeng Qian
The rhizosphere is one of the key determinants of plant health and productivity. Mixtures of pesticides are commonly used in intensified agriculture. However, the combined mechanisms underlying their impacts on soil microbiota remain unknown. The present study revealed that the rhizosphere microbiota was more sensitive to azoxystrobin and oxytetracycline, two commonly used pesticides, than was the microbiota present in bulk soil. Moreover, the rhizosphere microbiota enhanced network complexity and stability and increased carbohydrate metabolism and xenobiotic biodegradation as well as the expression of metabolic genes involved in defence against pesticide stress...
April 14, 2024: Environment International
#28
JOURNAL ARTICLE
Ziyan Zhou, Xiaofei Shi, Parag Bhople, Jishao Jiang, Caspar C C Chater, Shimei Yang, Jesus Perez-Moreno, Fuqiang Yu, Dong Liu
Microbial inoculation plays a significant role in promoting the efficiency of biowaste conversion. This study investigates the function of Streptomyces-Bacillus Inoculants (SBI) on carbon (C) and nitrogen (N) conversion, and microbial dynamics, during cow manure (10% and 20% addition) and corn straw co-composting. Compared to inoculant-free controls, inoculant application accelerated the compost's thermophilic stage (8 vs 15 days), and significantly increased compost total N contents (+47%) and N-reductase activities (nitrate reductase: +60%; nitrite reductase: +219%)...
April 15, 2024: Journal of Environmental Management
#29
JOURNAL ARTICLE
John P McCutcheon, Arkadiy I Garber, Noah Spencer, Jessica M Warren
The move from a free-living environment to a long-term residence inside a host eukaryotic cell has profound effects on bacterial function. While endosymbioses are found in many eukaryotes, from protists to plants to animals, the bacteria that form these host-beneficial relationships are even more diverse. Endosymbiont genomes can become radically smaller than their free-living relatives, and their few remaining genes show extreme compositional biases. The details of how these reduced and divergent gene sets work, and how they interact with their host cell, remain mysterious...
April 2024: PLoS Biology
#30
JOURNAL ARTICLE
Kalvis Brangulis, Inara Akopjana, Laura Drunka, Sofija Matisone, Diana Zelencova-Gopejenko, Shapla Bhattacharya, Janis Bogans, Kaspars Tars
Lyme disease is the most prevalent vector-borne infectious disease in Europe and the USA. Borrelia burgdorferi, as the causative agent of Lyme disease, is transmitted to the mammalian host during the tick blood meal. To adapt to the different encountered environments, Borrelia has adjusted the expression pattern of various, mostly outer surface proteins. The function of most B. burgdorferi outer surface proteins remains unknown. We determined the crystal structure of a previously uncharacterized B. burgdorferi outer surface protein BBK01, known to belong to the paralogous gene family 12 (PFam12) as one of its five members...
2024: PloS One
#31
JOURNAL ARTICLE
Manuela Montoya-Giraldo, Kathryn R Piper, Odion O Ikhimiukor, Cooper J Park, Nicole A Caimi, Debbie C Buecher, Ernest W Valdez, Diana E Northup, Cheryl P Andam
Streptomyces are prolific producers of secondary metabolites from which many clinically useful compounds have been derived. They inhabit diverse habitats but have rarely been reported in vertebrates. Here, we aim to determine to what extent the ecological source (bat host species and cave sites) influence the genomic and biosynthetic diversity of Streptomyces bacteria. We analysed draft genomes of 132 Streptomyces isolates sampled from 11 species of insectivorous bats from six cave sites in Arizona and New Mexico, USA...
April 2024: Microbial Genomics
#32
JOURNAL ARTICLE
Rosa Acevedo-Barrios, Irina Tirado-Ballestas, Angela Bertel-Sevilla, Leonor Cervantes-Ceballos, Jorge L Gallego, María Angélica Leal, David Tovar, Jesús Olivero-Verbel
Three extremophile bacterial strains (BBCOL-009, BBCOL-014 and BBCOL-015), capable of degrading high concentrations of perchlorate at a range of pH (6.5 to 10.0), were isolated from Colombian Caribbean Coast sediments. Morphological features included Gram negative strain bacilli with sizes averaged of 1.75 × 0.95, 2.32 × 0.65 and 3.08 × 0.70 μm, respectively. The reported strains tolerate a wide range of pH (6.5 to 10.0); concentrations of NaCl (3...
April 16, 2024: Biodegradation
#33
JOURNAL ARTICLE
Zachary K Garvin, Sebastian R Abades, Nicole Trefault, Fernando D Alfaro, Katie Sipes, Karen G Lloyd, Tullis C Onstott
High-elevation arid regions harbor microbial communities reliant on metabolic niches and flexibility to survive under biologically stressful conditions, including nutrient limitation that necessitates the utilization of atmospheric trace gases as electron donors. Geothermal springs present "oases" of microbial activity, diversity, and abundance by delivering water and substrates, including reduced gases. However, it is unknown whether these springs exhibit a gradient of effects, increasing the spatial reach of their impact on trace gas-oxidizing microbes in the surrounding soils...
April 16, 2024: ISME Journal
#34
JOURNAL ARTICLE
Rashid Ali, Srinivasa R Chaluvadi, Xuewen Wang, Khaled M Hazzouri, Naganeeswaran Sudalaimuthuasari, Mohammed Rafi, Mariam Al-Nuaimi, Shina Sasi, Eric Antepenko, Jeffrey L Bennetzen, Khaled M A Amiri
We conducted a comprehensive analysis of the total microbiome and transcriptionally active microbiome communities in the roots and root nodules of Prosopis cineraria , an important leguminous tree in arid regions of many Asian countries. Mature P. cineraria trees growing in the desert did not exhibit any detected root nodules. However, we observed root nodules on the roots of P. cineraria growing on a desert farm and on young plants growing in a growth chamber, when inoculated with rhizosphere soil, including with rhizosphere soil from near desert tree roots that had no nodules...
April 16, 2024: Microbiology Spectrum
#35
JOURNAL ARTICLE
Haofei Liu, Gaoge Xu, Baodian Guo, Fengquan Liu
Cyclic di-GMP (c-di-GMP) is a crucial signaling molecule found extensively in bacteria, involved in the regulation of various physiological and biochemical processes such as biofilm formation, motility, and pathogenicity through binding to downstream receptors. However, the structural dissimilarity of c-di-GMP receptor proteins has hindered the discovery of many such proteins. In this study, we identified LspE, a homologous protein of the type II secretion system (T2SS) ATPase GspE in Lysobacter enzymogenes , as a receptor protein for c-di-GMP...
April 16, 2024: Applied and Environmental Microbiology
#36
JOURNAL ARTICLE
Samuel T E Greenrod, Daniel Cazares, Serena Johnson, Tobias E Hector, Emily J Stevens, R Craig MacLean, Kayla C King
Host-parasite interactions are highly susceptible to changes in temperature due to mismatches in species thermal responses. In nature, parasites often exist in communities, and responses to temperature are expected to vary between host-parasite pairs. Temperature change thus has consequences for both host-parasite dynamics and parasite-parasite interactions. Here, we investigate the impact of warming (37°C, 40°C, and 42°C) on parasite life-history traits and competition using the opportunistic bacterial pathogen Pseudomonas aeruginosa (host) and a panel of three genetically diverse lytic bacteriophages (parasites)...
April 16, 2024: Applied and Environmental Microbiology
#37
JOURNAL ARTICLE
Lauren E Manck, Tyler H Coale, Brandon M Stephens, Kiefer O Forsch, Lihini I Aluwihare, Christopher L Dupont, Andrew E Allen, Katherine A Barbeau
Iron is an essential nutrient for all microorganisms in the marine environment. Iron limitation of primary production has been well documented across a significant portion of the global surface ocean, but much less is known regarding the potential for iron limitation of the marine heterotrophic microbial community. In this work, we characterize the transcriptomic response of the heterotrophic bacterial community to iron additions in the California Current System, an eastern boundary upwelling system, to detect in situ iron stress of heterotrophic bacteria...
April 16, 2024: ISME Journal
#38
JOURNAL ARTICLE
Mengxiong Wu, Xiawei Liu, J Pamela Engelberts, Gene W Tyson, Simon J McIlroy, Jianhua Guo
The bacterial species 'Candidatus Alkanivorans nitratireducens' was recently demonstrated to mediate nitrate-dependent anaerobic oxidation of short-chain gaseous alkanes (SCGAs). In previous bioreactor enrichment studies1,2, the species appeared to reduce nitrate in two phases, switching from denitrification to dissimilatory nitrate reduction to ammonium (DNRA) in response to nitrite accumulation. The regulation of this switch or the nature of potential syntrophic partnerships with other microorganisms remains unclear...
April 16, 2024: ISME Journal
#39
JOURNAL ARTICLE
Jeffrey L Ebersole, Sreenatha S Kirakodu, Linh M Nguyen, Octavio A Gonzalez
UNLABELLED: The local gingival tissue environment with homeostasis and tissue-destructive events of periodontitis demonstrates major changes in histological features and biology of the oral/sulcular epithelium, fibroblasts, vascular cells, inflammatory cell infiltration, and alveolar bone. OBJECTIVE: This study used an experimental periodontitis model to detail the gingival transcriptome related to cell death processes of pyroptosis, necroptosis, ferroptosis, and cuproptosis...
April 16, 2024: Oral Diseases
#40
JOURNAL ARTICLE
Yoowon Kwon, Kee Hyun Cho, Sangbae Ma, Hyelyun Ko, Geun-Hye Hong, So-Young Lee, Kun-Young Park, Jin A Chung, Su Jin Jeong
BACKGROUND: Imbalance of the gut microbiome and decrease in the number of short-chain fatty acid (SCFA)-producing bacteria often affect human health by altering intestinal and immune homeostasis. The use of probiotics has been shown to be an attractive method to modulate gut microbiota to prevent or treat intestinal dysbiosis. Likewise, this study aimed to determine whether the oral consumption of heat-treated Lactiplantibacillus plantarum nF1 (HLp-nF1) induces changes in the gut environment in healthy infants by measuring changes in fecal SCFAs...
2024: Journal of Nutrition and Metabolism
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