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Purification and Visualization of Lipopolysaccharide from Gram-negative Bacteria by Hot Aqueous-phenol Extraction
Published on: May 28, 2012
Exopolysaccharides of Paenibacillus polymyxa: A review
Xuan-Ya Huang1, Xin-Pei Ye1, Yan-Yu Hu1
1School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
Abstract:
Paenibacillus polymyxa (P. polymyxa) is a member of the genus Paenibacillus, which is a rod-shaped, spore-forming gram-positive bacterium. P. polymyxa is a source of many metabolically active substances, including polypeptides, volatile organic compounds, phytohormone, hydrolytic enzymes, exopolysaccharide (EPS), etc. Due to the wide range of compounds that it produces, P. polymyxa has been extensively studied as a plant growth promoting bacterium which provides a direct benefit to plants through the improvement of N fixation from the atmosphere and enhancement of the solubilization of phosphorus and the uptake of iron in the soil, and phytohormones production. Among the metabolites from P. polymyxa, EPS exhibits many activities, for example, antioxidant, immunomodulating, anti-tumor and many others. EPS has various applications in food, agriculture, environmental protection. Particularly, in the field of sustainable agriculture, P. polymyxa EPS can be served as a biofilm to colonize microbes, and also can act as a nutrient sink on the roots of plants in the rhizosphere. Therefore, this paper would provide a comprehensive review of the advancements of diverse aspects of EPS from P. polymyxa, including the production, extraction, structure, biosynthesis, bioactivity and applications, etc. It would provide a direction for future research on P. polymyxa EPS.
Insights
Paenibacillus polymyxa produces exopolysaccharide (EPS) with diverse bioactivities and applications. This review covers EPS production, structure, and its role in sustainable agriculture.
Area of Science:
- Microbiology
- Biochemistry
- Agricultural Science
Background:
- Paenibacillus polymyxa (P. polymyxa) is a gram-positive bacterium known for producing various bioactive compounds.
- Among these, exopolysaccharide (EPS) shows significant potential due to its diverse properties and applications.
Purpose of the Study:
- To provide a comprehensive review of exopolysaccharide (EPS) from Paenibacillus polymyxa.
- To cover EPS production, extraction, structure, biosynthesis, bioactivity, and applications.
Main Methods:
- Literature review of existing research on P. polymyxa EPS.
- Synthesis of information regarding EPS characteristics and functions.
Main Results:
- P. polymyxa EPS exhibits antioxidant, immunomodulating, and anti-tumor activities.
- EPS has applications in food, agriculture, and environmental protection, particularly in sustainable agriculture as a biofilm and nutrient sink.
Conclusions:
- P. polymyxa EPS is a versatile biopolymer with significant potential in various fields.
- Further research into P. polymyxa EPS can drive innovation in sustainable agriculture and beyond.
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