Pseudomonas aeruginosa is one of the most pleasant bacteria to identify from a microbiologist's perspective. In turn, from the veterinarian's point of view - one of the worst to treat.
Organisms living side by side produce a new form of life – a community. While ecosystems can be miles wide, this tiny swarm of bacteria is just establishing itself on a lab dish. Its two bacterial species, Bacillus subtilis (highlighted in red) and Pseudomonas aeruginosa (green), behave very differently, growing and dividing on different time scales and moving at different speeds. Here researchers watch as they mingle but not completely, keeping themselves to themselves but sometimes cooperating – with B. subtilis seeming to improve how the P. aeruginosa swarms. Bacterial communities, including those that stubbornly colonise surfaces in hospitals, are a natural form of active matter – a complex balance of biological behaviours and physical properties that crop up when 'things' move together. But even considering these factors, the team believe there are hidden subtleties still to discover – including the ways bacteria to recognise their own species when moving through the crowd.
Written by John Ankers
Video from work by Gal Natan and colleagues
Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
Video originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Published in Scientific Reports, October 2022
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Current MMWR Booster: Pseudomonas Infection Outbreak Associated with a Hotel Swimming Pool — Maine, March 2023
Top 5 Takeaways
Outbreak Identification and Response: In March 2023, Maine CDC investigated a Pseudomonas aeruginosa outbreak at a hotel pool. Among 35 guests surveyed, 23 developed symptoms like ear pain and rash after swimming during March 4-5.
Source of Infection: P. aeruginosa was identified in skin lesion cultures from three patients. SNP analysis suggested a common exposure source, likely the hotel swimming pool.
Hotel Pool Violations: Inspections revealed multiple violations at the hotel pool, including inadequate chlorine maintenance and no functioning disinfectant feeder, contributing to the outbreak.
Public Health Implications: The case underscores the importance of proper maintenance and public health compliance in preventing outbreaks at recreational water venues.
Prevention Strategies: Recommendations include maintaining chlorine concentration, rigorous management, and public health messaging to pool users, especially during peak seasons (January-April).
Full summary link: BroadlyEpi.com
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Common Plant and Crop Diseases and Infections and How to Treat Them
Plants and crops are always sensitive to a variety of infections, pathogens and diseases. Understanding the most common plant diseases and ways to tackle them is extremely important for a healthy yield.
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Late on this one: if you have someone with Cystic Fibrosis in your household, *and* a bottle of Pine-Sol, check this recall. Pseudomonas aeruginosa, of course. That fucker.
INHALED ANTIBIOTIC FOR PSEUDOMONAS IN CF SHOWS SAFETY IN EARLY TRIAL
A novel inhaled antibiotic called iMPV, developed by biotech company Spexis to treat Pseudomonas aeruginosa infections, showed a promising safety profile in a first trial conducted in healthy volunteers.
The therapy contains the antibiotic murepavadin and is designed to be inhaled through the mouth. It has shown efficacy against P. aeruginosa strains that are resistant to many other commonly used antibiotics.
Batteri che migrano dall'intestino ai polmoni: colpa della sempre crescente resistenza agli antibiotici?
Batteri che migrano dall’intestino ai polmoni: colpa della sempre crescente resistenza agli antibiotici?
Un nuovo studio pubblicato oggi dall’Università di Oxford ha trovato la prima prova diretta di batteri resistenti agli antibiotici che migrano dall’intestino di un paziente ai polmoni. L’applicazione dei risultati di questo studio potrebbe salvare vite umane, poiché sottolinea l’importanza di impedire ai batteri patogeni di trasferirsi dall’intestino ad altri organi dove possono causare gravi…
💅🏻Cuando aparecen uñas verdes se tiende a pensar que son hongos 🍄, pero no todo son hongos. También están las pseudomonas que dan un color verdoso a las uñas 🧫 . En ocasiones, incluso se dan infecciones mixtas de hongos + pseudomonas. Desliza y aprende! 🤓Recuerda 1. Guardar este post en la banderita para que puedas revisarla cuando lo necesites. 2. Dejar tu like 💜 si quieres más posts informativos. 😍😍 3. Dejar tu comentario con tu opinión o tu consulta 🔔Marca la campanita para que te avise cuando subamos nuevo post!!🔔 #hongosuñas #pseudomonasuñas #cloroniquia #infeccionesuñas #cursosdeuñas #cursodeuñas #uñasyestetica #uñasyesteticacentrodeformacion #unasyestetica #pseudomonas #uñassanas #nailfungus # (en Uñas y Estética) https://www.instagram.com/p/CevS4oOM77g/?igshid=NGJjMDIxMWI=
Bacteria grow in sprawling communities – as individual cells divide, so the overall colony grows. The plucky prokaryotes share chemicals with their neighbours, often feeding growth into stubborn biofilms that are difficult to disrupt. Here researchers find another clue to survival in the colony – canals. Pictured under a microscope, this colony of Pseudomonas aeruginosa develops channels (blue) sloshing fluids along each exploratory arm of the colony as it sprawls out. Researchers find that biosurfactant chemicals made by the bacteria help to lower surface tension in the channels, allowing them to send chemical packages called vesicles, or even to travel themselves, like barges on a canal (but 100 million times smaller). The team saw this long-range transport – a form of the Marangoni effect – even in bacteria without hair-like flagella often used to waft chemicals around. Further studies may allow researchers to develop new compounds to break disease-causing colonies apart.
Written by John Ankers
Video by Ye Li and colleagues
Department of Physics, Chinese University of Hong Kong, Hong Kong, China
Video originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Published in eLife, September 2022
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Balıklarda bakteriyel yüzgeç hastalığı etkeni Pseudomonas Fluorescens, Aeromonas Liquefaciens, Haemophilus Piscium, Aeromonas salmonicida ‘dur.
Bakteriyel Yüzgeç Hastalığının Klinik Semptomları
Alabalık, sazan ve diğer tatlı ve tuzlu su balıklarında görülmektedir. Dorsal-kaudal ve diğer yüzgeçlerin nekrozu ve dökülmesi ile karakterizedir. İnfeksiyon önce yüzgeçte başlar ve diğer yüzgeçlere…