Janthinobacterium lividum

General Information

Janthinobacterium lividum is a fascinating microorganism known for its striking purple pigmentation, which is due to the production of violacein, a secondary metabolite with potent antimicrobial properties. This pigment not only gives the bacterium its distinctive color but also contributes to its ability to inhibit the growth of various pathogens, making it a subject of interest in medical and environmental research. One of the most intriguing aspects of J. lividum is its potential use in biocontrol. Studies have shown that it can be used to protect amphibians, such as frogs, from the deadly chytrid fungus (Batrachochytrium dendrobatidis), which has been responsible for significant declines in amphibian populations worldwide. The bacterium's ability to produce violacein and other bioactive compounds makes it a promising candidate for developing natural antifungal treatments. In addition to its antimicrobial properties, J. lividum has been studied for its role in bioremediation. It has the ability to degrade various environmental pollutants, including polycyclic aromatic hydrocarbons (PAHs), which are common contaminants in soil and water. This makes J. lividum a valuable organism for cleaning up polluted environments. From a genetic and biochemical perspective, J. lividum is interesting due to its diverse metabolic capabilities and the presence of unique genes involved in the synthesis of violacein and other secondary metabolites. Researchers are exploring these pathways to understand how the bacterium produces these compounds and to potentially harness these pathways for biotechnological applications. Overall, Janthinobacterium lividum stands out as a microorganism with significant potential in medical, environmental, and biotechnological fields due to its unique properties and versatile applications.

Janthinobacterium lividum is a fascinating bacterium known for its striking purple pigmentation, which is attributed to the production of the pigment violacein. This unique characteristic not only makes it visually distinctive but also highlights its potential applications in various fields of research. Violacein has been studied for its antimicrobial, antitumor, and antioxidant properties, making J. lividum a valuable organism in the search for new therapeutic agents. This bacterium is commonly found in soil and aquatic environments, where it plays a role in the degradation of organic matter. Its ability to thrive in diverse ecological niches underscores its adaptability and ecological significance. Furthermore, J. lividum has been shown to exhibit antagonistic activity against various pathogenic microorganisms, which positions it as a potential biocontrol agent in agriculture and environmental management. Research on Janthinobacterium lividum has also revealed its interesting metabolic pathways, particularly those involved in the biosynthesis of violacein. Understanding these pathways can provide insights into microbial secondary metabolite production, which is crucial for drug discovery and development. Overall, J. lividum stands out not only for its aesthetic appeal but also for its promising applications in medicine and environmental science.

Taxonomy

Superkingdom: Bacteria

Phylum: Pseudomonadota

Class: Betaproteobacteria

Order: Burkholderiales

Family: Oxalobacteraceae

Genus: Janthinobacterium

Species: Janthinobacterium lividum

NCBI ID

29581

Genome Info

FTP Path:
ftp.ncbi.nlm.nih.gov/genomes/all/GCA/013/372/045/GCA_013372045.1_ASM1337204v1

File for sequence-based predictions:
GCA_013372045.1_ASM1337204v1_genomic.fasta

Descriptions

Clinical Implications and Relevance

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

The bacterium Janthinobacterium lividum is a Gram-negative, non-fermentative rod that has garnered attention for its potential clinical implications. It is primarily known for its role in infections associated with immunocompromised patients, particularly those with underlying conditions such as cystic fibrosis or cancer. While it is not a common pathogen, it has been isolated from various clinical specimens, including respiratory and wound infections, indicating its opportunistic nature. One of the notable features of Janthinobacterium lividum is its production of antimicrobial compounds, which may have implications for its role in the human microbiome and its potential use in therapeutic applications. This organism has been studied for its ability to produce antibiotics that could be beneficial in combating other pathogenic bacteria, highlighting its dual role as both a potential pathogen and a source of antimicrobial agents. In terms of antimicrobial resistance, there is limited data available, but like many non-fermentative Gram-negative bacteria, it may exhibit resistance to multiple classes of antibiotics, complicating treatment options for infections. Furthermore, Janthinobacterium lividum has been implicated in biofilm formation, which can contribute to its persistence in chronic infections and its ability to evade the immune response. Understanding the mechanisms of its pathogenicity and interactions with the human host is crucial for developing effective treatment strategies. Overall, while Janthinobacterium lividum is not a primary pathogen, its opportunistic nature, potential for antimicrobial production, and involvement in infections in vulnerable populations underscore its clinical relevance.

Habitat and Ecological Niches

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

Janthinobacterium lividum is a versatile bacterium commonly found in various habitat types across different biomes. This microorganism is primarily associated with soil ecosystems, particularly in areas rich in organic matter. It thrives in environments that are moist and nutrient-rich, often found in the rhizosphere of plants, where it plays a crucial role in nutrient cycling and soil health. Its presence in these terrestrial biomes contributes to the breakdown of organic materials, enhancing soil fertility and promoting plant growth. In addition to soil, Janthinobacterium lividum is also found in freshwater environments, such as streams and ponds. Here, it can be involved in the decomposition of organic matter, contributing to the overall health of aquatic ecosystems. Its ability to produce pigments, which give it a characteristic purple hue, may also play a role in protecting it from UV radiation in these exposed habitats. Furthermore, Janthinobacterium lividum exhibits notable interactions with its surroundings, including potential symbiotic relationships with plants. It has been observed to promote plant growth by enhancing nutrient availability and may also provide some level of disease resistance. This bacterium's adaptability to various environmental conditions, including its ability to survive in both aerobic and anaerobic environments, underscores its ecological significance in maintaining the balance of microbial communities in both terrestrial and aquatic biomes.

Industrial Application

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

The microorganism Janthinobacterium lividum has shown significant potential in various industrial applications. One of the most notable areas is in biotechnology, where Janthinobacterium lividum is recognized for its ability to produce a range of bioactive compounds, including antimicrobial agents. This property is particularly valuable in the development of new pharmaceuticals, as these compounds can be utilized in the creation of novel antibiotics and other therapeutic agents. In the realm of waste management, Janthinobacterium lividum has demonstrated capabilities in biodegradation, particularly in the breakdown of complex organic pollutants. This makes it a candidate for use in bioremediation processes, where it can help in the detoxification of contaminated environments, such as soil and water, by degrading harmful substances. Furthermore, the organism is involved in biofuel production through its metabolic processes. It can participate in fermentation, converting organic materials into biofuels, which contributes to sustainable energy solutions. The efficiency of Janthinobacterium lividum in these processes can enhance the yield of biofuels, making it a valuable asset in the renewable energy sector. Overall, Janthinobacterium lividum is a versatile microorganism with applications spanning pharmaceutical development, waste treatment, and biofuel production, showcasing its importance in advancing industrial biotechnology and environmental sustainability.

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: 10

LLM predicted phenotypes: 3

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

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