Bradyrhizobium septentrionale

General Information

Bradyrhizobium septentrionale is a fascinating microorganism primarily known for its role in nitrogen fixation, a process crucial for converting atmospheric nitrogen into a form that plants can utilize. This bacterium forms symbiotic relationships with leguminous plants, particularly those in the genus Glycine (soybeans). One of the most intriguing aspects of B. septentrionale is its ability to thrive in colder climates, which is reflected in its name, derived from the Latin word for 'northern.' This adaptation makes it particularly valuable for agricultural practices in temperate and subarctic regions, where other nitrogen-fixing bacteria may not perform as efficiently. From a research perspective, Bradyrhizobium septentrionale is of significant interest due to its genetic and metabolic versatility. The bacterium's genome reveals a complex array of genes involved in nitrogen fixation, stress response, and symbiosis, providing insights into how these processes are regulated and optimized. Its ability to fix nitrogen at lower temperatures opens up new avenues for studying cold-adaptation mechanisms in bacteria, which could have broader implications for understanding microbial life in extreme environments. Moreover, B. septentrionale exhibits a unique set of nodulation factors, signaling molecules that facilitate the formation of root nodules in host plants. These nodulation factors are structurally distinct from those produced by other Bradyrhizobium species, suggesting a specialized evolutionary pathway that enhances its symbiotic efficiency in specific environmental conditions. This specialization not only underscores the ecological importance of B. septentrionale but also highlights its potential for biotechnological applications, such as developing biofertilizers tailored for use in cooler climates. In summary, Bradyrhizobium septentrionale stands out due to its cold-adaptation capabilities, genetic diversity, and unique symbiotic mechanisms, making it a valuable subject for both basic and applied microbiological research.

Bradyrhizobium septentrionale is a fascinating species of nitrogen-fixing bacteria that plays a crucial role in the ecology of leguminous plants. This organism is particularly interesting due to its ability to form symbiotic relationships with various legumes, which enhances soil fertility through the process of nitrogen fixation. This capability is vital for sustainable agriculture, as it reduces the need for chemical fertilizers, promoting a more environmentally friendly approach to crop production. One of the unique aspects of B. septentrionale is its adaptation to cooler climates, which distinguishes it from other members of the Bradyrhizobium genus that are typically associated with warmer environments. This adaptation allows it to thrive in northern latitudes, making it a valuable organism for research into plant-microbe interactions in temperate ecosystems. Additionally, B. septentrionale has been studied for its potential in improving the growth of specific crops, such as soybeans and other legumes, under suboptimal conditions. Understanding the genetic and metabolic pathways of this bacterium can lead to advancements in agricultural practices, particularly in regions where soil nitrogen is limited. Furthermore, the genomic analysis of B. septentrionale has revealed insights into its symbiotic mechanisms, which can inform biotechnological applications aimed at enhancing nitrogen fixation in crops. This research is essential for developing sustainable agricultural systems that can cope with the challenges posed by climate change and food security. In summary, Bradyrhizobium septentrionale stands out not only for its ecological importance but also for its potential contributions to sustainable agriculture and environmental conservation, making it a significant subject of study in microbiology and agronomy.

Taxonomy

Superkingdom: Bacteria

Phylum: Pseudomonadota

Class: Alphaproteobacteria

Order: Hyphomicrobiales

Family: Nitrobacteraceae

Genus: Bradyrhizobium

Species: Bradyrhizobium septentrionale

NCBI ID

1404411

Genome Info

FTP Path:
ftp.ncbi.nlm.nih.gov/genomes/all/GCA/011/516/645/GCA_011516645.4_ASM1151664v4

File for sequence-based predictions:
GCA_011516645.4_ASM1151664v4_genomic.fasta

Descriptions

Clinical Implications and Relevance

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

The microorganism Bradyrhizobium septentrionale is primarily known for its role in nitrogen fixation in leguminous plants, but its clinical implications in human health are less well-documented. However, it is important to note that certain species within the Bradyrhizobium genus have been associated with opportunistic infections in immunocompromised individuals. While B. septentrionale itself has not been directly linked to specific diseases in humans, its close relatives may exhibit pathogenicity under certain conditions, particularly in patients with weakened immune systems. Antimicrobial resistance is a growing concern in many bacterial species, and while specific resistance mechanisms for B. septentrionale are not well-characterized, the potential for horizontal gene transfer of resistance traits from environmental bacteria to pathogenic strains remains a significant risk. In terms of immune evasion strategies, some members of the Bradyrhizobium genus can modulate host immune responses, which may provide insights into how these bacteria interact with the human immune system. Currently, there are no known medical applications such as probiotics, vaccines, or therapeutics directly associated with B. septentrionale. However, understanding its ecological role and interactions within the microbiome could provide future avenues for research in microbial health and disease prevention.

Habitat and Ecological Niches

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

Bradyrhizobium septentrionale is a nitrogen-fixing bacterium primarily associated with the root nodules of leguminous plants, particularly in temperate and subtropical regions. This microorganism thrives in a variety of terrestrial biomes, including grasslands, savannas, and agricultural fields where its host plants are prevalent. Ecological Niches: Bradyrhizobium septentrionale plays a crucial role in the nitrogen cycle by converting atmospheric nitrogen into a form that is accessible to plants. This process not only enhances soil fertility but also supports the growth of its host plants, contributing to the overall productivity of the ecosystem. The presence of this bacterium can significantly improve the health of agricultural soils, making it an important player in sustainable farming practices. Habitats: This bacterium is commonly found in soil environments that are rich in organic matter and have a neutral to slightly acidic pH. It forms symbiotic relationships with leguminous plants, such as Phaseolus and Glycine species, where it establishes itself in the root nodules. The interaction is mutually beneficial; while the bacterium receives carbohydrates and a protective environment, the plant gains access to fixed nitrogen, which is essential for its growth. Notable Interactions: In addition to its symbiotic relationship with legumes, Bradyrhizobium septentrionale can also influence the microbial community structure in the rhizosphere. Its presence can promote the growth of other beneficial microorganisms, enhancing the overall health of the soil ecosystem. Furthermore, this bacterium exhibits a degree of environmental adaptation, allowing it to survive in various soil types and conditions, which is vital for its persistence in diverse habitats. Overall, Bradyrhizobium septentrionale is integral to the functioning of terrestrial ecosystems, particularly in enhancing soil fertility and supporting plant growth through its nitrogen-fixing capabilities.

Industrial Application

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

The microorganism Bradyrhizobium septentrionale is primarily recognized for its role in agricultural biotechnology, particularly in the context of nitrogen fixation. This bacterium forms symbiotic relationships with leguminous plants, enhancing soil fertility by converting atmospheric nitrogen into a form that plants can utilize. This process is crucial for sustainable agriculture, reducing the need for chemical fertilizers and promoting soil health. In addition to its agricultural applications, Bradyrhizobium septentrionale has potential in waste management. Its ability to degrade organic matter can be harnessed in biodegradation processes, where it contributes to the breakdown of waste materials, thus aiding in composting and reducing landfill waste. Furthermore, there is growing interest in the use of Bradyrhizobium septentrionale in biofuel production. The bacterium's metabolic pathways can be explored for the conversion of biomass into biofuels, particularly through fermentation processes that yield bioethanol from plant materials. Lastly, while still under research, the potential for Bradyrhizobium septentrionale in pharmaceutical development is being investigated. Its unique metabolic capabilities may lead to the discovery of novel compounds with therapeutic properties, although this application is not yet fully realized. Overall, Bradyrhizobium septentrionale demonstrates significant promise across various industrial sectors, particularly in enhancing agricultural productivity and contributing to sustainable practices.

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: 2

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