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JOURNAL ARTICLE
Faizan Ahmed Sadiq, Koen De Reu, Nan Yang, Mette Burmølle, Marc Heyndrickx
Interspecies interactions within a biofilm community influence population dynamics and community structure, which in turn may affect the bacterial stress response to antimicrobials. This study was conducted to assess the impact of interactions between Kocuria salsicia and a three-species biofilm community (comprising Stenotrophomonas rhizophila , Bacillus licheniformis , and Microbacterium lacticum ) on biofilm mass, the abundance of individual species, and their survival under a laboratory-scale cleaning and disinfection (C&D) regime...
June 2024: Biofilm
#2
JOURNAL ARTICLE
Zuokai Wang, Shuang Zeng, Yifu Hao, Wenlin Cai, Wen Sun, Jianjun Du, Saran Long, Jiangli Fan, Jingyun Wang, Xiaoqiang Chen, Xiaojun Peng
The abuse and overuse of antibiotics let drug-resistant bacteria emerges. Antibacterial photodynamic therapy (APDT) has shown outstanding merits to eliminate the drug-resistant bacteria via cytotoxic reactive oxygen species produced by irradiating photosensitizer. However, most of photosensitizers are not effective for Gram-negative bacteria elimination. Herein conjugates of NBS, a photosensitizer, linked with one (NBS-DPA-Zn) or two (NBS-2DPA-Zn) equivalents of zinc-dipicolylamine (Zn-DPA) have been designed to achieve the functional recognition of different bacteria...
April 15, 2024: Biomaterials
#3
JOURNAL ARTICLE
Kavitha Koti, Argenis Rodas-Gonzalez, Celine Nadon, Tim McAllister, Xianqin Yang, Claudia Narváez-Bravo
This study aimed to investigate the impact of temperature and the presence of other microorganisms on the susceptibility of STEC to biocides. Mature biofilms were formed at both 10°C and 25°C. An inoculum of planktonic bacteria comprising 106 CFU/mL of spoilage bacteria and 103 CFU/mL of a single E. coli strain (O157, O111, O103, and O12) was used to form mixed biofilms. The following bacterial combinations were tested: T1: Carnobacterium piscicola + Lactobacillus bulgaricus + STEC, T2: Comamonas koreensis + Raoultella terrigena + STEC, and T3: Pseudomonas aeruginosa + C...
2024: Frontiers in Microbiology
#4
JOURNAL ARTICLE
Martina María Pereyra, Mariana Andrea Díaz, Silvana Vero, Julián Rafael Dib
Argentina is among the most important lemon fruit producers in the world. Penicillium digitatum is the primary lemon fungal phytopathogen, causing green mold during the postharvest. Several alternatives to the use of synthetic fungicides have been developed, being the use of biocontrol yeasts one of the most promising. Although many of the reports are based on the use of a single yeast species, it has been shown that the combination of agents with different mechanisms of action can increase control efficiency through synergistic effects...
2024: PloS One
#5
JOURNAL ARTICLE
P W Crous, E R Osieck, R G Shivas, Y P Tan, S L Bishop-Hurley, F Esteve-Raventós, E Larsson, J J Luangsa-Ard, F Pancorbo, S Balashov, I G Baseia, T Boekhout, S Chandranayaka, D A Cowan, R H S F Cruz, P Czachura, S De la Peña-Lastra, F Dovana, B Drury, J Fell, A Flakus, R Fotedar, Ž Jurjević, A Kolecka, J Mack, G Maggs-Kölling, S Mahadevakumar, A Mateos, S Mongkolsamrit, W Noisripoom, M Plaza, D P Overy, M Piątek, M Sandoval-Denis, J Vauras, M J Wingfield, S E Abell, A Ahmadpour, A Akulov, F Alavi, Z Alavi, A Altés, P Alvarado, G Anand, N Ashtekar, B Assyov, G Banc-Prandi, K D Barbosa, G G Barreto, J-M Bellanger, J L Bezerra, D J Bhat, P Bilański, T Bose, F Bozok, J Chaves, D H Costa-Rezende, C Danteswari, V Darmostuk, G Delgado, S Denman, A Eichmeier, J Etayo, G Eyssartier, S Faulwetter, K G G Ganga, Y Ghosta, J Goh, J S Góis, D Gramaje, L Granit, M Groenewald, G Gulden, L F P Gusmão, A Hammerbacher, Z Heidarian, N Hywel-Jones, R Jankowiak, M Kaliyaperumal, O Kaygusuz, K Kezo, A Khonsanit, S Kumar, C H Kuo, T Læssøe, K P D Latha, M Loizides, S M Luo, J G Maciá-Vicente, P Manimohan, P A S Marbach, P Marinho, T S Marney, G Marques, M P Martín, A N Miller, F Mondello, G Moreno, K T Mufeeda, H Y Mun, T Nau, T Nkomo, A Okrasińska, J P A F Oliveira, R L Oliveira, D A Ortiz, J Pawłowska, M À Pérez-De-Gregorio, A R Podile, A Portugal, N Privitera, K C Rajeshkumar, I Rauf, B Rian, A Rigueiro-Rodríguez, G F Rivas-Torres, P Rodriguez-Flakus, M Romero-Gordillo, I Saar, M Saba, C D Santos, P V S R N Sarma, J L Siquier, S Sleiman, M Spetik, K R Sridhar, M Stryjak-Bogacka, K Szczepańska, H Taşkın, D S Tennakoon, D Thanakitpipattana, J Trovão, I Türkekul, A L van Iperen, P van 't Hof, G Vasquez, C M Visagie, B D Wingfield, P T W Wong, W X Yang, M Yarar, O Yarden, N Yilmaz, N Zhang, Y N Zhu, J Z Groenewald
Novel species of fungi described in this study include those from various countries as follows: Australia , Aschersonia mackerrasiae on whitefly, Cladosporium corticola on bark of Melaleuca quinquenervia , Penicillium nudgee from soil under Melaleuca quinquenervia , Pseudocercospora blackwoodiae on leaf spot of Persoonia falcata , and Pseudocercospora dalyelliae on leaf spot of Senna alata . Bolivia , Aspicilia lutzoniana on fully submersed siliceous schist in high-mountain streams, and Niesslia parviseta on the lower part and apothecial discs of Erioderma barbellatum on a twig...
June 2023: Persoonia
#6
JOURNAL ARTICLE
Nazia Tabassum, Fazlurrahman Khan, Geum-Jae Jeong, Du-Min Jo, Young-Mog Kim
The increasing incidence of antimicrobial resistance exhibited by biofilm-forming microbial pathogens has been recognized as one of the major issues in the healthcare sector. In the present study, nanomaterial-based controlling the biofilm and virulence properties has been considered an alternative approach. Pyoverdine (PVD) isolated from the Pseudomonas aeruginosa was utilized as a biological corona to synthesize silver nanoparticles (AgNPs), which will be helpful in a targeted action to microbial pathogens due to the recognition of the corona of the nanoparticles by the pathogenic membrane...
June 2024: Biofilm
#7
JOURNAL ARTICLE
Regina Koloh, Viktória L Balázs, Lilla Nagy-Radványi, Béla Kocsis, Erika Beáta Kerekes, Marianna Kocsis, Ágnes Farkas
The irresponsible overuse of antibiotics has increased the occurrence of resistant bacterial strains, which represents one of the biggest patient safety risks today. Due to antibiotic resistance and biofilm formation in bacteria, it is becoming increasingly difficult to suppress the bacterial strains responsible for various chronic infections. Honey was proven to inhibit bacterial growth and biofilm development, offering an alternative solution in the treatment of resistant infections and chronic wounds. Our studies included chestnut honey, valued for its high antibacterial activity, and the bacteria Pseudomonas aeruginosa , methicillin-resistant Staphylococcus aureus , and S...
March 13, 2024: Antibiotics
#8
REVIEW
Xiang Qi, Xinning Liu, Yuyi Gu, Peng Liang
The development of carbon-neutral fuel sources is an essential step in addressing the global fossil energy crisis. Whole-cell biophotovoltaic systems (BPVs) are a renewable, non-polluting energy-generating device that utilizes oxygenic photosynthetic microbes (OPMs) to split water molecules and generate bioelectricity under the driving of light energy. Since 2006, BPVs have been widely studied, with the order magnitudes of power density increasing from 10-4 mW/m2 to 103 mW/m2 . This review examines the extracellular electron transfer (EET) mechanisms and regulation techniques of BPVs from biofilm to external environment...
March 25, 2024: Bioelectrochemistry
#9
JOURNAL ARTICLE
He Liu, Xuemei Wei, Zhefen Wang, Xiaonan Huang, Mengyang Li, Zhen Hu, Kexin Zhang, Qiwen Hu, Huagang Peng, Weilong Shang, Yi Yang, Yuting Wang, Shuguang Lu, Xiancai Rao
BACKGROUND: Staphylococcus aureus and its single or mixed biofilm infections seriously threaten global public health. Phage therapy, which uses active phage particles or phage-derived endolysins, has emerged as a promising alternative strategy to antibiotic treatment. However, high-efficient phage therapeutic regimens have yet to be established. RESULTS: In this study, we used an enrichment procedure to isolate phages against methicillin-resistant S. aureus (MRSA) XN108...
March 25, 2024: Microbial Cell Factories
#10
JOURNAL ARTICLE
Hui Li, Xianxiang Zeng, Ting Yao, Hengyi Xu
Silver nanoparticles (AgNPs) is an excellent antibacterial agent, which is widely used in medical, food, environmental and other fields, but AgNPs are easy to accumulate in aqueous solution, so their application in various fields is limited. Therefore, it is particularly important to propose a new application method or to prepare a new composite material. In this study, OA/PVA was obtained by cross-linking oxalic acid (OA) with polyvinyl alcohol (PVA). Then Ag/NCC was obtained by in situ reduction of AgNPs on nanocellulose crystals (NCC)...
March 20, 2024: Colloids and Surfaces. B, Biointerfaces
#11
JOURNAL ARTICLE
Sybille Dühring, Stefan Schuster
Mixed-species biofilms of Candida albicans and Staphylococcus aureus pose a significant clinical challenge due to their resistance to the human immune system and antimicrobial therapy. Using evolutionary game theory and nonlinear dynamics, we analyse the complex interactions between these organisms to understand their coexistence in the human host. We determine the Nash equilibria and evolutionary stable strategies of the game between C. albicans and S. aureus and point out different states of the mixed-species biofilm...
2024: PloS One
#12
JOURNAL ARTICLE
Rita Teixeira-Santos, Ana Azevedo, Maria J Romeu, Cristina I Amador, Luciana C Gomes, Kathryn A Whitehead, Jelmer Sjollema, Mette Burmølle, Filipe J Mergulhão
The ability of bacteria to adhere to and form biofilms on food contact surfaces poses serious challenges, as these may lead to the cross-contamination of food products. Biomimetic topographic surface modifications have been explored to enhance the antifouling performance of materials. In this study, the topography of two plant leaves, Brassica oleracea var. botrytis (cauliflower, CF) and Brassica oleracea capitate (white cabbage, WC), was replicated through wax moulding, and their antibiofilm potential was tested against single- and dual-species biofilms of Escherichia coli and Pseudomonas putida ...
June 2024: Biofilm
#13
JOURNAL ARTICLE
Thiago Abrantes Silva, Alexia Saleme Aona de Paula Pereira, Jéssica Ferreira, Juliana Ferreira Lorentz, Marília Luise de Assis, Paula Peixoto Assemany, Alberto José Delgado Dos Reis, Maria Lúcia Calijuri
Recently, hybrid systems, such as those incorporating high-rate algal ponds (HRAPs) and biofilm reactors (BRs), have shown promise in treating domestic wastewater while cultivating microalgae. In this context, the objective of the present study was to determine an improved scraping frequency to maximize microalgae biomass productivity in a mix of industrial (fruit-based juice production) and domestic wastewater. The mix was set to balance the carbon/nitrogen ratio. The scraping strategy involved maintaining 1 cm wide stripes to retain an inoculum in the reactor...
March 4, 2024: Journal of Environmental Management
#14
JOURNAL ARTICLE
Rong Wang, Manita Guragain, Sapna Chitlapilly Dass, Vignesh Palanisamy, Joseph M Bosilevac
Salmonella enterica is a leading cause of foodborne illness in the U.S. In the meat industry, one action taken to address pathogen contamination incidence is an intense sanitization (IS) of the entire processing plant that many large processors perform annually or semiannually. However, this procedure's immediate and long-term impact on environment microbial community and pathogen colonization are unknown. Here we investigated the impact of IS procedure on environmental biofilms and the subsequent S. enterica colonization and stress tolerance...
2024: Frontiers in Microbiology
#15
JOURNAL ARTICLE
Paul Le Montagner, Yacine Bakhtiar, Cecile Miot-Sertier, Morgan Guilbaud, Warren Albertin, Virginie Moine, Marguerite Dols-Lafargue, Isabelle Masneuf-Pomarède
Biofilms are central to microbial life because of the advantage that this mode of life provides, whereas the planktonic form is considered to be transient in the environment. During the winemaking process, grape must and wines host a wide diversity of microorganisms able to grow in biofilm. This is the case of Brettanomyces bruxellensis considered the most harmful spoilage yeast, due to its negative sensory effect on wine and its ability to colonise stressful environments. In this study, the effect of different biotic and abiotic factors on the bioadhesion and biofilm formation capacities of B...
June 2024: Food Microbiology
#16
JOURNAL ARTICLE
Delia Irani, Gert Jungbauer, Anton Sculean, Sigrun Eick
OBJECTIVES: An adjunct in non-surgical periodontal therapy might be sodium hypochlorite (NaOCl)-based agents. The purpose of the present in vitro study was to get deeper knowledge on the influence of different parameters as time after mixing, pH, and chemical composition of an amino acid 0.475% NaOCl (AA-NaOCl) gel consisting of two components on its anti-biofilm activity. MATERIALS AND METHODS: Six-species biofilms were cultured for 5 days, before AA-NaOCl gel was applied...
March 2, 2024: Clinical Oral Investigations
#17
JOURNAL ARTICLE
Cecília Rocha da Silva, Lívia Gurgel do Amaral Valente Sá, João Batista de Andrade Neto, Fátima Daiana Dias Barroso, Vitória Pessoa de Farias Cabral, Daniel Sampaio Rodrigues, Lisandra Juvêncio da Silva, Iri Sandro Pampolha Lima, Lourdes Pérez, Anderson Ramos da Silva, Denise Ramos Moreira, Nágila Maria Pontes Silva Ricardo, Hélio Vitoriano Nobre
Dual-species biofilms formed by Candida albicans and Staphylococcus aureus have high virulence and drug resistance. In this context, biosurfactants produced by Pseudomonas aeruginosa have been widely studied, of which a new derivative (RLmix_Arg) stands out for possible application in formulations. The objective of this study was to evaluate the antibiofilm activity of RLmix_Arg, both alone and incorporated in a gel prepared with Pluronic F-127, against dual-species biofilms of fluconazole-resistant C. albicans (FRCA) and methicillin-resistant S...
February 29, 2024: Biofouling
#18
REVIEW
Sudhir Doranga, Karen A Krogfelt, Paul S Cohen, Tyrrell Conway
In this chapter, we update our 2004 review of "The Life of Commensal Escherichia coli in the Mammalian Intestine" (https://doi.org/10.1128/ecosalplus.8.3.1.2), with a change of title that reflects the current focus on "Nutrition of E. coli within the Intestinal Microbiome." The earlier part of the previous two decades saw incremental improvements in understanding the carbon and energy sources that E. coli and Salmonella use to support intestinal colonization. Along with these investigations of electron donors came a better understanding of the electron acceptors that support the respiration of these facultative anaerobes in the gastrointestinal tract...
January 11, 2024: EcoSal Plus
#19
JOURNAL ARTICLE
Allison E Mann, Brinta Chakraborty, Lauren M O'Connell, Marcelle M Nascimento, Robert A Burne, Vincent P Richards
UNLABELLED: Arginine catabolism by the bacterial arginine deiminase system (ADS) has anticariogenic properties through the production of ammonia, which modulates the pH of the oral environment. Given the potential protective capacity of the ADS pathway, the exploitation of ADS-competent oral microbes through pre- or probiotic applications is a promising therapeutic target to prevent tooth decay. To date, most investigations of the ADS in the oral cavity and its relation to caries have focused on indirect measures of activity or on specific bacterial groups, yet the pervasiveness and rate of expression of the ADS operon in diverse mixed microbial communities in oral health and disease remain an open question...
April 2, 2024: Microbiology Spectrum
#20
JOURNAL ARTICLE
Lindsey A Miller, Kelli Buckingham-Meyer, Darla M Goeres
Craft brewing is continually gaining popularity in the United States. Craft brewers are committed to producing a wide variety of products and have a vested interest in product quality. Therefore, these brewers have the expectation that the beer poured at the tap will match the quality product that left the brewery. The presence of biofilm in draught lines is hypothesized as a contributing factor when this expectation is not achieved. Clean in place strategies based on the Sinner's Circle of Cleaning are used to remediate organic and inorganic accumulation in beer draught lines, including controlling biofilm accumulation...
February 17, 2024: International Journal of Food Microbiology
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