Multidrug resistance of Pseudomonas aeruginosa: do virulence properties impact on resistance patterns? by Poulomi Saha, Rubaiya Binte Kabir, Chowdhury Rafiqul Ahsan, Mahmuda Yasmin

“…Among the isolates, 89% showed hemolytic activity, 80–90% produced different pigments such as fluorescein and pyoverdine, 46% were strong biofilm producers, and all the isolates presented different types of motilities (swimming, swarming, and twitching). …”
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<i>Botrytis cinerea</i> PMT4 Is Involved in <i>O</i>-Glycosylation, Cell Wall Organization, Membrane Integrity, and Virulence by Verónica Plaza, Alice Pasten, Luz A. López-Ramírez, Héctor M. Mora-Montes, Julia Rubio-Astudillo, Evelyn Silva-Moreno, Luis Castillo

“…Thus, in addition to their role in glycosylation, the <i>PMT4</i> is required to virulence, biofilm formation, and membrane integrity. This study adds to our knowledge of the role of the <i>B. cinerea bcpmt4</i> gene, which is involved in glycosylation and cell biology, cell wall formation, and antifungal response.…”
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Evaluating the dual impact of microbial activity and aged refuse layers on landfill leachate clogging: An experimental and LCA perspective by Zhaobin Li, Waifan Tang, Shulun Mak, Siukei Lam, Qingwen Li

“…Partially saturated aged refuse layers reduced clogging potential by up to 40% by stabilizing leachate chemistry and inhibiting biofilm formation. However, life cycle assessment (LCA) results indicate that while aged refuse layers mitigate clogging, they also increase the global warming potential (GWP) by 10% compared to conventional methods, highlighting the need to balance technical efficacy with environmental sustainability. …”
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The Geographical Distribution of Global Biobanks by Farzad Parvizpour, Sarvenaz Salahi, Mohammad Amin Mahmanzar, Karim Rahimian, Neda Esfandiari, Zahra Fatahi, Niousha Khoshdast, Reyhaneh Yarmohammadi, Mohamad Amir Amirkhani, Arefeh Jafarian

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Therapeutic Values of Earthworm Species Extract from Azad Kashmir as Anticoagulant, Antibacterial, and Antioxidant Agents by Rozina Ghulam Mustafa, Andleeb Dr Saiqa, Jorge Domínguez, Madiha Jamil, Saira Manzoor, Samna Wazir, Bushra Shaheen, Asma Parveen, Rida Khan, Shaukat Ali, Nazish Mazhar Ali, Fatima Jalal, Sadaf Azad Raja

“…The maximum zone of inhibition of E. coli was recorded as 14.66 ± 0.57 mm by A. corticis, 25.0 ± 0.0 mm by P. posthuma, 20.0 ± 0.0 mm by E. fetida, and 20.0 ± 0.0 mm by A. trapezoid. Cell proliferation, biofilm inhibition, the synergistic effect of extracts along with antibiotics, and direct bioautography supported the results of agar well diffusion assay. …”
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Newly identified c-di-GMP pathway putative EAL domain gene STM0343 regulates stress resistance and virulence in Salmonella enterica serovar Typhimurium by Kaifeng Chen, Lili Li, Nanwei Wang, Zhouping Zhou, Peng Pan, Chenggang Xu, Dage Sun, Jiayi Li, Changzhi Dai, Dai Kuang, Ming Liao, Jianmin Zhang

“…Specifically, it exhibited increases of 95.74% in extracellular protein and 35.96% in exopolysaccharide production by upregulating the expression of relevant genes. As a result, the biofilm formation ability of 269ΔSTM0343 was enhanced by 21.54%, accompanied by a more pronounced red, dry, and rough colony morphology. 269ΔSTM0343 also showed a 19.03% decrease in motility due to the downregulation of flhD expression. …”
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Emerging Resistance and Virulence Patterns in <i>Salmonella enterica</i>: Insights into Silver Nanoparticles as an Antimicrobial Strategy by Irina Gheorghe-Barbu, Ilda Czobor Barbu, Rareș-Ionuț Dragomir, Ioana Cristina Marinaș, Miruna Silvia Stan, Radu Pericleanu, Andreea Ștefania Dumbravă, Liviu-Iulian Rotaru, Simona Paraschiv, Leontina Mirela Bănică, Ionuț Pecete, Dan Oțelea, Violeta Corina Cristea, Mircea Ioan Popa, Marilena Monica Țânțu, Marius Surleac

“…Methods: In 2019, community-acquired <i>Salmonella</i> strains were collected and identified using MALDI-TOF mass spectrometry, antibiotic susceptibility profiles have been determined with the MicroScan system, and soluble virulence factors were evaluated using specific culture media, while biofilm formation was quantified in 96-well plates. …”
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Confocal Microscopy for Detection of Intracellular Bacteria in Urine Samples of patients Suspected with Urinary Tract Infection: A Cross-sectional Observational Study by Bhagyashri Patil-Takbhate, Nilam Memane, Srikanth Tripathy, Nageswari Gandham, Shahzad Mirza

“…Urine samples showing intracellular gram-negative bacteria by Gram staining were further processed for fluorescence confocal microscopy followed by conventional culture and virulence detection by multiplex Polymerase Chain Reaction (PCR). Formation of biofilm ability was assessed by tube method. Quantitative data presented as mean and Standard Deviation (SD) while qualitative variables expressed as frequency (percentage). …”
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Technological dental sealants: in vitro evaluation of material properties and antibiofilm potential by Witalo Pereira de Jesus, Luiza de Almeida Queiroz Ferreira, Washington Henrique Themoteo da Silva, Fernanda Vieira Belém, Ana Paula Turrioni, Cláudia Silami de Magalhães, Mila Fernandes Moreira Madeira, Ivana Márcia Alves Diniz, Marco Aurelio Benini Paschoal

“…For the MAS test, a bacterial biofilm of S. mutans was induced for five days in BHI broth + 5% sucrose and measurement of CFU/ml (log 10 from serial dilutions). …”
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Autoinducer-2 enhances the defense of Vibrio furnissii against oxidative stress and DNA damage by modulation of c-di-GMP signaling via a two-component system by Heng Zhang, Wenjin Zhao, Wenguang Yang, Huimin Zhang, Xinyu Qian, Kai Sun, Qiao Yang, Xihui Shen, Lei Zhang

“…In contrast with another well-known AI-2 receptor LuxP that recognizes the borated form of AI-2, AsrK is found to show higher affinity with AI-2 under borate-depleted conditions, and thus boron has a negative effect on AI-2 sensing by AsrK in regulation of the biofilm and motility phenotypes. AI-2 binds to the extracytoplasmic dCache_1 domain of AsrK to inhibit its autokinase activity, thus decreasing the phosphorylation level of its cognate response regulator AsrR and activating the phosphodiesterase activity of AsrR to degrade the cellular second messenger cyclic di-GMP (c-di-GMP). …”
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