Xenorhabdus stockiae

General Information

Xenorhabdus stockiae is a fascinating bacterium primarily known for its symbiotic relationship with entomopathogenic nematodes, specifically those in the genus Steinernema. This relationship is particularly interesting because it plays a crucial role in the nematode's ability to infect and kill insect hosts. The bacterium is carried in the gut of the infective juvenile nematodes and is released into the insect hemocoel upon infection. Once inside the insect, X. stockiae produces a variety of bioactive compounds that help to suppress the insect's immune system, kill the host, and prevent the growth of competing microorganisms. One of the most remarkable aspects of X. stockiae is its ability to produce a wide array of secondary metabolites, including antibiotics, bacteriocins, and insecticidal toxins. These compounds not only aid in the infection process but also have potential applications in agriculture and medicine. For instance, the antibiotics produced by X. stockiae could be explored for their potential to combat antibiotic-resistant bacteria, while the insecticidal toxins might be developed into biopesticides. Moreover, X. stockiae exhibits a unique phase variation phenomenon, where it can switch between primary and secondary forms. These forms differ in their colony morphology, pigmentation, and the production of certain metabolites. This phase variation is thought to be an adaptive mechanism that allows the bacterium to survive in different environments and host conditions. In summary, Xenorhabdus stockiae is a bacterium of significant interest due to its symbiotic relationship with nematodes, its production of diverse and potentially useful secondary metabolites, and its ability to undergo phase variation. These characteristics make it a valuable subject for research in microbial ecology, natural product discovery, and biocontrol applications.

Xenorhabdus stockiae is a fascinating bacterium belonging to the family Enterobacteriaceae, primarily known for its symbiotic relationship with nematodes, particularly the genus Steinernema. This unique association allows X. stockiae to thrive in the soil environment, where it plays a crucial role in the biological control of insect pests. The bacterium produces a range of bioactive compounds, including antibiotics and toxins, which are effective against various insect larvae. One of the most interesting aspects of X. stockiae is its ability to produce secondary metabolites that have potential applications in agriculture and medicine. These metabolites can inhibit the growth of pathogenic fungi and bacteria, making X. stockiae a candidate for developing natural pesticides. Furthermore, the study of its genomic and metabolic pathways provides insights into the mechanisms of symbiosis and pathogenicity, which can be valuable for biotechnological applications. Additionally, X. stockiae has been the subject of research due to its potential in biocontrol strategies, offering an environmentally friendly alternative to chemical pesticides. Its interactions with nematodes not only enhance the nematodes' ability to infect and kill insect hosts but also contribute to the nutrient cycling in soil ecosystems. This dual role as both a pathogen and a symbiont makes X. stockiae a unique organism worthy of further investigation in microbial ecology and applied microbiology.

Taxonomy

Superkingdom: Bacteria

Phylum: Pseudomonadota

Class: Gammaproteobacteria

Order: Enterobacterales

Family: Morganellaceae

Genus: Xenorhabdus

Species: Xenorhabdus stockiae

NCBI ID

351614

Genome Info

FTP Path:
ftp.ncbi.nlm.nih.gov/genomes/all/GCF/002/632/825/GCF_002632825.1_ASM263282v1

File for sequence-based predictions:
GCF_002632825.1_ASM263282v1_genomic.fasta

Descriptions

Clinical Implications and Relevance

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

The bacterium Xenorhabdus stockiae is a member of the family Enterobacteriaceae and is primarily known for its association with entomopathogenic nematodes. While it is not commonly recognized as a direct human pathogen, its clinical relevance arises from its potential role in infections and its interactions with the human microbiome. Research has indicated that certain strains of Xenorhabdus can produce bioactive compounds, which may have implications for antimicrobial development. This highlights the organism's potential as a source of novel therapeutics. In terms of immune evasion, Xenorhabdus stockiae has been observed to produce various virulence factors that can modulate host immune responses, although specific mechanisms in humans are not well-documented. Its relationship with nematodes also suggests a complex interaction with the host's immune system, which could provide insights into pathogenicity and disease associations in broader contexts. Furthermore, the organism's ability to produce antimicrobial substances may contribute to its role in antimicrobial resistance, as it could influence the dynamics of microbial communities in the human body. While there are no well-documented outbreaks or infections directly linked to Xenorhabdus stockiae in humans, its ecological role and potential applications in biotechnology and medicine warrant further investigation. Overall, while Xenorhabdus stockiae is not a primary pathogen, its biochemical properties and interactions with other organisms present interesting avenues for research in human health and disease management.

Habitat and Ecological Niches

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

Xenorhabdus stockiae is a species of bacteria that is primarily associated with the soil biome, particularly in environments where it forms a symbiotic relationship with nematodes, specifically the genus Steinernema. This relationship is crucial for the lifecycle of both organisms, as the bacteria are often found in the gut of these nematodes, where they provide essential nutrients and help in the digestion of organic matter. Soil ecosystems are rich in organic material, and _Xenorhabdus stockiae thrives in these nutrient-dense environments. The bacteria play a significant role in nutrient cycling, breaking down complex organic compounds and contributing to soil fertility. Their presence can enhance the availability of nutrients for plants, thus supporting the overall health of the ecosystem. In addition to their role in nutrient cycling, _Xenorhabdus stockiae is known for its pathogenic properties against various insect pests. When the nematodes infect a host insect, they introduce the bacteria, which then multiply and produce toxins that lead to the death of the insect. This interaction not only aids in the nematode's reproduction but also positions Xenorhabdus stockiae as a potential biocontrol agent in agricultural settings, helping to manage pest populations without the use of chemical pesticides. Overall, the ecological niche of _Xenorhabdus stockiae is characterized by its dual role as a symbiont and a pathogen, making it a vital component of both soil health and pest management strategies in various terrestrial ecosystems.

Industrial Application

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

The bacterium Xenorhabdus stockiae has shown significant potential in various industrial applications, particularly in the fields of biotechnology, waste management, and pharmaceutical development. This microorganism is known for its role in the biodegradation of organic pollutants, making it a valuable asset in waste treatment processes. By utilizing its natural metabolic pathways, Xenorhabdus stockiae can effectively break down complex organic compounds, thus contributing to the remediation of contaminated environments. In the realm of biofuel production, Xenorhabdus stockiae has been studied for its ability to produce enzymes that facilitate the fermentation of biomass into bioethanol. The enzymatic activity of this bacterium can enhance the efficiency of converting lignocellulosic materials into fermentable sugars, which are crucial for biofuel generation. Moreover, Xenorhabdus stockiae is recognized for its pharmaceutical applications, particularly in the development of biopesticides. The bacterium produces secondary metabolites that exhibit antimicrobial properties, which can be harnessed for agricultural purposes to control pests and diseases without the use of synthetic chemicals. Overall, the diverse capabilities of Xenorhabdus stockiae in biodegradation, fermentation, and the production of bioactive compounds underscore 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: 8

LLM predicted phenotypes: 5

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