Article
Microbiology
Hui Xue, Xiangzhen Zhu, Li Wang, Kaixin Zhang, Dongyang Li, Jichao Ji, Lin Niu, Changcai Wu, Xueke Gao, Junyu Luo, Jinjie Cui
Summary: Bacteria in Adelphocoris suturalis are mainly composed of Proteobacteria and Firmicutes, with significant dynamic changes in relative abundance at different developmental stages. Functional prediction focuses on metabolic pathways. Analysis of the bacteria in A. suturalis provides valuable information for the development of novel biological control strategies.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Alexis Berger, Patricia Blackwelder, Tamara Frank, Tracey T. Sutton, Nina M. Pruzinsky, Natalie Slayden, Jose V. Lopez
Summary: This study identifies the bacterial bioluminescent symbionts of Pyrosoma atlanticum collected in the northern Gulf of Mexico using various methods, including light and electron microscopy, as well as molecular genetics. The research found that more than 50% of the bacterial taxa present in the tunicate samples were bioluminescent symbiotic bacteria Vibrionaceae. In addition, the study confirmed the presence of intracellular rod-like bacteria in the pyrosome light organs, suggesting bacteriocyte formation similar to other invertebrates.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Agronomy
Mohadeseh Hassanisaadi, Gholam Hosein Shahidi Bonjar, Akbar Hosseinipour, Roohollah Abdolshahi, Essaid Ait Barka, Ismail Saadoun
Summary: The study identified 53 out of 116 actinobacteria isolates with antagonistic activity against Pythium aphanidermatum, and selected two bioactive Streptomyces isolates (H2 and H3) for further evaluation in controlling damping-off disease in tomato. The in vivo greenhouse experiments demonstrated that these two bioactive Streptomyces strains effectively reduced disease incidence and improved plant performance. Phylogenetic analysis revealed close relations of the strains H2 and H3 to known Streptomyces species, indicating their potential as biocontrol agents against Pythium aphanidermatum.
Article
Genetics & Heredity
Mike Darrington, Philip T. Leftwich, Neil A. Holmes, Lucy A. Friend, Naomi V. E. Clarke, Sarah F. Worsley, John T. Margaritopolous, Saskia A. Hogenhout, Matthew I. Hutchings, Tracey Chapman
Summary: This study investigates the gut microbiome of the Mediterranean fruit fly and finds that the presence of Klebsiella bacteria in the gut is primarily determined by the larval diet and shows resistance to antibiotic treatment. The genome analysis suggests that these bacteria may have developed a mutualistic association with the fruit fly and provide nutritional benefits.
MICROBIAL GENOMICS
(2022)
Article
Biotechnology & Applied Microbiology
N. E. Gasz, M. J. Geary, S. L. Doggett, M. L. Harvey
Summary: The blowfly species Lucilia sericata and Lucilia cuprina play roles as agricultural pests, in forensics, and in medicine. While L. sericata larvae are used in maggot debridement therapy, L. cuprina larvae are major initiators of sheep myiasis in certain regions. Bacterial DNA extraction and sequencing showed that digestive tracts and female salivary glands carried the most bacteria in both species, with genera Pseudomonas and Corynebacterium being highly represented. Further research could focus on key organs like spermathecae and salivary glands to understand the role of bacteria in the blowfly life cycle.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Environmental Sciences
Weijiao Liu, Muhammad Nasir, Mengjie Yan, Xiangzhen Zhu, Muhammad Shahid Iqbal, Li Wang, Kaixin Zhang, Dongyang Li, Jichao Ji, Xueke Gao, Junyu Luo, Jinjie Cui
Summary: This study examined the effects of Cry1B protein on the growth and development of non-target natural enemies. The results showed that Cry1B protein had no significant impact on the health indicators of P. astrigera, but it did reduce the number of symbiotic bacteria species and species diversity. The effects of Cry1B protein on symbiotic bacteria varied by growth and development stage and sex.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Ecology
Renata de Oliveira Aquino Zani, Milene Ferro, Mauricio Bacci Jr
Summary: This study found phylogenetically distinct diazotrophs in leaf-cutting ants, which integrate a symbiotic nutrition network and facilitate ant nutrition on nitrogen. Additionally, the strains identified in South American ants were genetically similar to those found in ants from other regions, indicating a wide geographic dispersion of these microorganisms.
ECOLOGY AND EVOLUTION
(2021)
Article
Otorhinolaryngology
Weigang Gan, Fengjuan Yang, Juan Meng, Feng Liu, Shixi Liu, Junming Xian
Summary: The microbiome of the nasal cavity and its contribution to nasal mucosal disease have been poorly understood. This study used molecular methods to characterize the microbiome and found that certain microbial populations were significantly different in allergic rhinitis and chronic rhinosinusitis, suggesting a role of microbial dysbiosis in the pathogenesis of nasal mucosal inflammation.
EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
(2021)
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)
Article
Immunology
Qian Zhang, Shumin Wang, Xinyu Zhang, Kexin Zhang, Ying Li, Yansong Yin, Ruiling Zhang, Zhong Zhang
Summary: The gut microenvironment of houseflies plays a crucial role in their development and immune response. This study isolates and analyzes different bacterial strains from housefly larvae, and finds that the oral administration of various bacteria has differential effects on larval development and immunity. Beneficial bacteria can be used as probiotic additives for larvae feeding, while harmful bacteria could be targeted for pest control. Additionally, the study provides insights into the immune response of houseflies to external microorganism stimulation.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Environmental Sciences
Yongjing Chen, Guijia Liu, Maria Rafraf Ali, Mingzhu Zhang, Guowei Zhou, Qingye Sun, Mingjun Li, Jazbia Shirin
Summary: Soil cadmium (Cd) pollution poses a significant threat to flora and fauna due to its non-degradable and transferable nature. This study investigated the impact of endogenous Cd-polluted mulberry leaves on the gut microbiota of silkworms (Bombyx mori). The results revealed that Cd exposure caused significant changes in the gut bacterial composition of the silkworms, but had negligible effects on the phyllosphere bacteria of mulberry leaves. The findings suggest that the perturbations in the gut microbiota of B. mori are driven by Cd content rather than phyllosphere bacteria.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Food Science & Technology
Anderson Carlos Camargo, Edite Andrade Costa, Andressa Fusieger, Rosangela de Freitas, Luis Augusto Nero, Antonio Fernandes de Carvalho
Summary: Minas Gerais is a Brazilian state known for being the largest cheese producer in Brazil, with Entre Serras region experiencing a resurgence in artisanal cheese production. The predominant bacterial species in Entre Serras MAC was found to be Lactococcus lactis, with some farms showing high levels of contamination, possibly due to poor hygiene practices.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Nutrition & Dietetics
Inna Burakova, Yuliya Smirnova, Mariya Gryaznova, Mikhail Syromyatnikov, Pavel Chizhkov, Evgeny Popov, Vasily Popov
Summary: Obesity is causing many concomitant diseases, and new strategies for treatment and prevention are being developed using probiotics to modulate the gut microbiota. A study found an increase in Actinobacteriota and a decrease in Bacteroidota in obese patients taking lactic acid bacteria. Beneficial groups like Bifidobacterium and Lactococcus increased, while harmful groups like Faecalibacterium and Clostridium decreased. Modulating the gut microbiota with lactic acid bacteria may be a way to treat obesity.
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
Immunology
Lorena Ruiz, Claudio Alba, Cristina Garcia-Carral, Esther A. Jimenez, Kimberly A. Lackey, Michelle K. McGuire, Courtney L. Meehan, James Foster, Daniel W. Sellen, Elizabeth W. Kamau-Mbuthia, Egidioh W. Kamundia, Samwel Mbugua, Sophie E. Moore, Andrew M. Prentice, Debela K. Gindola, Gloria E. Otoo, Rossina G. Pareja, Lars Bode, Mark A. McGuire, Janet E. Williams, Juan M. Rodriguez
Summary: This study reprocessed and resequenced a large set of human milk samples from diverse international sites, revealing the impact of different sequencing approaches on the microbiota profiles obtained for human milk samples and showing relatively consistent microbial configurations in the studied cohorts.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Entomology
Carlos Eduardo Almeida Luz, Vitor Zuim, Andrea Aparecida Santos Oliveira, Patricia de Jesus dos Santos, Karolayne Lopes Campos, Marcelo Mendes Haro, Lucia Madalena Vivan, Cristina Schetino Bastos, Raul Narciso Carvalho Guedes
Summary: The introduction of genetically modified crops expressing Bt insecticidal proteins has revolutionized insect pest management, but concerns remain about issues like Bt resistance and impacts on non-target arthropod species. A study in the Neotropical region found that Bt cotton did not significantly affect the associated arthropod community, raising questions about its effectiveness in controlling the main target pests.
JOURNAL OF APPLIED ENTOMOLOGY
(2022)
Article
Microbiology
Bruno Campos Silva, Ananda Pereira Aguilar, Luana Dutra, Kyung-Mee Moon, Alexandra Sebastien, Leonard J. Foster, Tiago Antonio Oliveira Mendes, Andrea de Oliveira Barros Ribon
Summary: This study compared the proteome of different strains of S. aureus causing mastitis and found that the metabolic differences in subclinical mastitis strains may result in reduced virulence and contribute to bacterial survival and persistence under stressful conditions.
CURRENT MICROBIOLOGY
(2022)
Review
Entomology
Leonardo M. Turchen, Lirio Cosme, Jayne E. Yack, Raul Narciso C. Guedes
Summary: Research on insect biotremology has revealed biases and knowledge gaps in terms of taxa, developmental stages, and research topics. The study found that studies on Hemiptera, Hymenoptera, and Coleoptera were prevalent, with a focus on adults and reproductive behaviors. Further research is needed on the role of vibrations in adaptive contexts, particularly in juveniles, and across a wider range of taxa.
ENTOMOLOGIA GENERALIS
(2022)
Review
Veterinary Sciences
Bruno Campos, Amy C. Pickering, Lis Souza Rocha, Ananda Pereira Aguilar, Mary Hellen Fabres-Klein, Tiago Antonio de Oliveira Mendes, J. Ross Fitzgerald, Andrea de Oliveira Barros Ribon
Summary: This review summarizes the research on bovine Staphylococcus aureus population genetics and molecular pathogenesis conducted worldwide in the past 16 years. It describes the diversity and geographical distribution of S. aureus associated with bovine mastitis, and explores the evolution of bovine S. aureus and the importance of host-adaptation in its emergence as a mastitis pathogen. The functional relevance of virulence determinants in the pathogenesis of bovine mastitis is also discussed.
BMC VETERINARY RESEARCH
(2022)
Article
Entomology
Geverson A. Resende-Silva, Jessica N. Bravim, Marcelo M. Haro, G. Christopher Cutler, Antonio A. Silva, Raul Narciso C. Guedes
Summary: The use of insecticides remains widespread and controversial globally. Neonicotinoid insecticides have been implicated in declines in pollinators and decreases in insect diversity. This study analyzed the impact of the neonicotinoid imidacloprid on the arthropod community in Neotropical soybean fields through food web analysis. The results showed that imidacloprid seed treatments significantly affected arthropod species richness and abundance, but the effect was secondary to cultivation season.
JOURNAL OF PEST SCIENCE
(2023)
Article
Entomology
Leonardo M. Turchen, Lirio Cosme Jr, Jayne E. Yack, Raul Narciso C. Guedes
Summary: This study characterized the vibratory landscape of the fall armyworm caterpillar and examined their response to abiotic and biotic vibrations. The findings suggest that the caterpillars can perceive and respond to both types of vibrations, with a stronger response to abiotic stimuli.
JOURNAL OF PEST SCIENCE
(2023)
Article
Agronomy
Oscar F. Santos-Amaya, Clebson S. Tavares, Joao Victor C. Rodrigues, Eugenio E. Oliveira, Raul Narciso C. Guedes, Eliseu Jose G. Pereira
Summary: The study examined the fitness costs of resistance to transgenic Cry1A.105+Cry2Ab2 Bacillus thuringiensis (Bt) maize in the globally invasive pest species, fall armyworm. The resistance alleles led to a significant reduction in insect fitness on most of the host crops studied, with developmental time being the key factor influencing fitness. The study suggests that fall armyworm resistance to Cry1A.105+Cry2Ab2-expressing Bt maize comes with strong fitness costs, which were magnified on less-suitable host plants for the insects.
Review
Ecology
Rodrigo Cupertino Bernardes, Lorena Lisbetd Botina, Renan dos Santos Araujo, Raul Narciso Carvalho Guedes, Gustavo Ferreira Martins, Maria Augusta Pereira Lima
Summary: The lack of consensus on pollinator decline has led to intense debates worldwide. Research suggests that a combination of multiple stressors is the main cause of this decline. The focus on agrochemicals and honey bees may overlook the real risk of anthropogenic stressors on other pollinating insects. Furthermore, there is a lack of published articles exploring the toxicological impact of agrochemicals on bumble bees, solitary bees, and stingless bees.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Chemistry, Multidisciplinary
Lucas M. F. Oliveira, Ueveton P. da Silva, Joao Pedro Braga, Alvaro V. N. C. Teixeira, Andrea O. B. Ribon, Eduardo V. V. Varejao, Eduardo A. F. Coelho, Camila S. de Freitas, Robson R. Teixeira, Renata P. L. Moreira
Summary: This work describes the green synthesis, characterization, and biological evaluation of silver nanoparticles (AgNPs) using Eucalyptus grandis leaf extract. The AgNPs demonstrated antibacterial activity against Escherichia coli and inhibited the growth of Leishmania infantum parasites.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2022)
Article
Biotechnology & Applied Microbiology
Mariana de Fatima Albuquerque Pereira, Larissa Gabriela Morais de Avila, Gabriela de Cassia Avila Alpino, Bruna Cristina dos Santos Cruz, Lucas Filipe Almeida, Jordana Macedo Simoes, Andressa Ladeira Bernardes, Iasmim Xisto Campos, Andrea de Oliveira Barros Ribon, Tiago Antonio de Oliveira Mendes, Maria do Carmo Gouveia Peluzio
Summary: This study analyzed the microbial community profile of milk kefir and its effects on metabolism, oxidative stress, and the microbiota-gut-brain axis in a mouse model. The results showed that kefir improved gut microbiota, increased production of short-chain fatty acids, and positively influenced brain health. Therefore, kefir has potential benefits for maintaining gut and brain health.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Mariana de Fatima Albuquerque Pereira, Larissa Gabriela Morais de Avila, Bruna Cristina dos Santos Cruz, Bruno Campos Silva, Leandro Licursi de Oliveira, Reggiani Vilela Goncalves, Andrea de Oliveira Barros Ribon, Tiago Antonio de Oliveira Mendes, Maria do Carmo Gouveia Peluzio
Summary: This study evaluated the role of milk kefir on inflammation and gut microbiome in mice infected with Salmonella. The results showed that kefir could prevent systemic infections and regulate cytokines in IL-10(-/-) mice, but not in wild type mice. These findings demonstrate the importance of IL-10 in the prognosis of salmonellosis and the potential use of milk kefir in acute infections.
Article
Environmental Sciences
Raul Narciso C. Guedes, Giovanni Benelli, Evgenios Agathokleous
Summary: Outbreaks are sudden increases in population density of a species, and they are important in both natural and artificial systems. Climate and anthropogenic stressors directly or indirectly affect arthropod populations, and their effects are dose- or intensity-dependent. Sublethal stimulation or hormesis is an important phenomenon, but it has been primarily studied in agricultural settings, neglecting key complexities of biological systems.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2022)
Article
Toxicology
Rachel R. Rix, Raul Narciso C. Guedes, G. Christopher Cutler
Summary: Hormesis is a toxicological phenomenon where exposure to low doses of stress stimulates biological response. It is now recognized as a dominant response in toxicology, occurring in various organisms exposed to different types of stress. Recent research shows the occurrence of hormesis in animals exposed to commonly encountered and environmentally relevant contaminants/pollutants, such as metals, industrial chemicals, pesticides, pharmaceuticals, and plastics. Evidence for the underlying mechanisms of hormesis is also presented. Therefore, it is important to consider the effects of low doses and hormesis when studying the consequences of environmental contamination/pollution.
CURRENT OPINION IN TOXICOLOGY
(2022)
Article
Toxicology
Raul Narciso C. Guedes, Rachel R. Rix, G. Christopher Cutler
Summary: Misconceptions about the importance of pesticide-induced hormesis in arthropods have delayed its recognition. Historically, the focus on lethal effects in experiments overshadowed the consideration of sublethal effects. However, there has been a shift in this trend with the recognition of the significance of pesticide-induced hormesis. This review highlights the potential impacts of hormesis on species interactions and community dynamics, providing a broader understanding beyond its immediate implications for agriculture.
CURRENT OPINION IN TOXICOLOGY
(2022)
Review
Entomology
Leonardo M. Turchen, Lirio Cosme, Jayne E. Yack, Raul Narciso C. Guedes
Summary: This study reviewed literature on insect biotremology over the past 75 years, revealing biases and knowledge gaps in the research. Further investigations are needed to explore the role of vibratory sensing and communication in juveniles, adaptive roles of vibrations in a broader range of taxa, characterization of vibratory landscapes, and research on sensory receptors.
ENTOMOLOGIA GENERALIS
(2022)