Pseudomonas fragi

General Information

Pseudomonas fragi is a fascinating microorganism primarily known for its role in the spoilage of dairy and meat products. This bacterium is part of the Pseudomonas genus, which is renowned for its metabolic diversity and adaptability to various environments. One of the key characteristics of P. fragi is its ability to produce a wide range of extracellular enzymes, including proteases and lipases, which contribute to its spoilage capabilities by breaking down proteins and fats in food products. Another noteworthy feature of P. fragi is its production of volatile organic compounds (VOCs), which are responsible for the off-flavors and odors associated with spoiled food. These VOCs include compounds such as esters, ketones, and sulfur-containing molecules, making P. fragi a significant concern in the food industry. From a research perspective, P. fragi is valuable due to its potential applications in biotechnology. Its enzymatic activities can be harnessed for industrial processes, such as the production of bioactive peptides and the bioremediation of waste products. Additionally, studying P. fragi can provide insights into microbial spoilage mechanisms, which can lead to the development of better preservation techniques and spoilage prevention strategies. Overall, Pseudomonas fragi stands out due to its spoilage capabilities, metabolic versatility, and biotechnological potential, making it a subject of significant interest in both food microbiology and industrial applications.

Pseudomonas fragi is a psychrotrophic bacterium that thrives in cold environments, making it particularly interesting for studies related to food preservation and spoilage. This organism is commonly found in refrigerated foods, especially dairy products, where it can contribute to spoilage due to its ability to grow at low temperatures. Its metabolic versatility allows it to utilize a wide range of substrates, which is a significant factor in its survival in diverse environments, including soil and water. One of the unique aspects of Pseudomonas fragi is its production of extracellular enzymes, such as proteases and lipases, which can break down proteins and fats, respectively. This enzymatic activity not only plays a role in food spoilage but also makes it a subject of interest for biotechnological applications, such as enzyme production for industrial processes. Additionally, Pseudomonas fragi has been studied for its potential in bioremediation, particularly in cold environments where other microorganisms may not thrive. Its ability to degrade various organic compounds under low-temperature conditions highlights its ecological significance and potential utility in environmental cleanup efforts. Overall, the study of Pseudomonas fragi provides valuable insights into microbial ecology, food science, and biotechnology, making it a noteworthy organism in microbiological research.

Taxonomy

Superkingdom: Bacteria

Phylum: Pseudomonadota

Class: Gammaproteobacteria

Order: Pseudomonadales

Family: Pseudomonadaceae

Genus: Pseudomonas

Species: Pseudomonas fragi

NCBI ID

296

Genome Info

FTP Path:
ftp.ncbi.nlm.nih.gov/genomes/all/GCA/015/476/275/GCA_015476275.1_ASM1547627v1

File for sequence-based predictions:
GCA_015476275.1_ASM1547627v1_genomic.fasta

Descriptions

Clinical Implications and Relevance

Source: gpt-4o-mini-2024-07-18

The organism Pseudomonas fragi is a Gram-negative bacterium that is primarily known for its role in food spoilage, particularly in refrigerated environments. While it is not typically associated with human infections, it can be an opportunistic pathogen, especially in immunocompromised individuals. Clinical implications of Pseudomonas fragi include its potential to cause infections in patients with underlying health conditions, such as those with cystic fibrosis or those undergoing invasive procedures. Its ability to form biofilms contributes to its pathogenicity, making it difficult to eradicate from contaminated environments. In terms of antimicrobial resistance, Pseudomonas fragi has shown resistance to various antibiotics, which poses a challenge in treating infections that may arise in susceptible populations. This resistance is often attributed to its intrinsic mechanisms, such as efflux pumps and the production of beta-lactamases, which can degrade certain classes of antibiotics. While Pseudomonas fragi is not commonly used in medical applications, its relatives in the Pseudomonas genus, such as Pseudomonas aeruginosa, are studied for their roles in probiotics and therapeutics. Understanding the behavior of Pseudomonas fragi can provide insights into the management of food safety and the prevention of spoilage, which is crucial in healthcare settings where sterile conditions are paramount. Overall, while Pseudomonas fragi is not a primary pathogen, its implications in food safety and potential opportunistic infections warrant attention in clinical microbiology.

Habitat and Ecological Niches

Source: gpt-4o-mini-2024-07-18

Pseudomonas fragi is a psychrotrophic bacterium commonly found in cold environments and is particularly associated with food spoilage in refrigerated conditions. This microorganism thrives in temperatures ranging from 0°C to 30°C, making it well-adapted to temperate biomes and polar regions where low temperatures prevail. Its ability to metabolize a variety of substrates allows it to inhabit diverse niches within these environments, including soil, water, and food products such as dairy and meat. In terms of ecological interactions, Pseudomonas fragi plays a significant role in the decomposition of organic matter, contributing to nutrient cycling within its habitat. It can also engage in competitive interactions with other microorganisms, influencing microbial community dynamics. Notably, this bacterium can produce enzymes that break down complex organic compounds, which aids in the biodegradation process. Furthermore, Pseudomonas fragi is known for its potential symbiotic relationships with plants, where it may promote plant growth by enhancing nutrient availability in the soil. Its adaptability to various environmental conditions and its metabolic versatility make it a key player in the ecosystems it inhabits, particularly in cold storage environments where it can lead to spoilage and affect food safety.

Industrial Application

Source: gpt-4o-mini-2024-07-18

The microorganism Pseudomonas fragi has demonstrated significant potential in various industrial applications. One of the primary areas of interest is in biotechnology, where Pseudomonas fragi is utilized for its ability to produce enzymes that can be harnessed in biocatalysis processes. These enzymes are particularly effective in breaking down complex organic compounds, making them valuable in the production of biofuels through fermentation processes. In the realm of waste management, Pseudomonas fragi plays a crucial role in biodegradation, where it can effectively degrade a variety of pollutants, including hydrocarbons and other organic waste materials. This capability is essential for the treatment of contaminated soils and water, contributing to environmental remediation efforts. Additionally, Pseudomonas fragi has been explored for its potential in pharmaceutical development. Its metabolic pathways can be exploited for the synthesis of bioactive compounds, which may lead to the discovery of new drugs or therapeutic agents. Overall, the versatility of Pseudomonas fragi in these applications highlights its importance in advancing sustainable practices across multiple industries.

Phenotypes and Predictions

The table shows the phenotypes and predictions. Cell colors indicate the class of the value. When literature-based data is available, a checkmark (✓) indicates a correct prediction, while an ✗ indicates an incorrect prediction.

Literature-based phenotypes: 12

LLM predicted phenotypes: 1

Phenotype	High-quality annotation	anthropic/claude-3-haiku:beta	google/gemini-flash-1.5	meta-llama/llama-3-70b-instruct:nitro	mistralai/mixtral-8x7b-instruct:nitro	google/gemini-pro-1.5	perplexity/llama-3-sonar-small-32k-chat	mistralai/mistral-7b-instruct	openchat/openchat-7b	google/gemini-pro	anthropic/claude-3.5-sonnet	anthropic/claude-3.5-sonnet	openai/gpt-4	openai/gpt-4	openai/gpt-4o	openai/gpt-4o	openai/gpt-3.5-turbo-0125	openai/gpt-3.5-turbo-0125	google/palm-2-chat-bison-32k	google/palm-2-chat-bison-32k	meta-llama/llama-3-8b-instruct:nitro	meta-llama/llama-3-8b-instruct:nitro	microsoft/phi-3-mini-128k-instruct	microsoft/phi-3-mini-128k-instruct	google/gemma-7b-it	google/gemma-7b-it	microsoft/wizardlm-2-8x22b	microsoft/wizardlm-2-8x22b
Motility	TRUE	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓
Gram staining	gram stain negative	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓	N/A	gram stain negative ✓
Aerophilicity	aerobic	N/A	N/A	aerobic ✓	facultatively anaerobic ✗	aerobic ✓	N/A	N/A	N/A	N/A	aerobic ✓	aerobic ✓	aerobic ✓	aerobic ✓	aerobic ✓	aerobic ✓	aerobic ✓	aerobic ✓	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Extreme environment tolerance	TRUE	true ✓	true ✓	true ✓	false ✗	true ✓	false ✗	true ✓	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	false ✗	true ✓	true ✓	false ✗	false ✗	true ✓	true ✓	true ✓	true ✓
Biofilm formation	TRUE	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓	true ✓
Animal pathogenicity	FALSE	true ✗	true ✗	false ✓	false ✓	true ✗	false ✓	false ✓	false ✓	true ✗	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	true ✗	true ✗	true ✗	true ✗
Biosafety level	biosafety level 1	biosafety level 2 ✗	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 2 ✗	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 1 ✓	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 2 ✗	biosafety level 2 ✗
Health association	N/A	true	true	true	true	true	true	false	false	true	true	true	true	true	false	false	false	false	true	true	true	true	false	false	true	true	true	true
Host association	FALSE	true ✗	true ✗	true ✗	true ✗	true ✗	true ✗	true ✗	false ✓	true ✗	true ✗	true ✗	true ✗	true ✗	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	true ✗	true ✗	true ✗	true ✗	false ✓	false ✓	true ✗	true ✗
Plant pathogenicity	FALSE	true ✗	false ✓	false ✓	false ✓	true ✗	false ✓	false ✓	true ✗	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	true ✗	true ✗	true ✗	true ✗
Spore formation	FALSE	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓	false ✓
Hemolysis	gamma	alpha ✗	gamma ✓	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Cell shape	bacillus	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓	bacillus ✓

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