Characterization of alginate-degrading bacteria isolated from seaweed-producing areas of South Korean territory and verification of the bacteria as plant growth-promoting biofertilizer DOI Creative Commons

Seung Chan Jeong,

Pyeong Ho Lee,

Joon‐Kwan Moon

et al.

Microbiology Spectrum, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

ABSTRACT Alginate, a carbohydrate polymer produced by seaweed and some bacteria, is widely used in the food medicine industries. Alginate oligosaccharides, depolymerizing alginate, exhibit diverse biological functions, such as plant protection growth promotion, enhancement of microbial metabolic activity, potential applications biofuel production. This study isolated 13 alginate-degrading bacterial strains from over thousand seaside soil bacteria South Korea investigated their characteristics. Through 16S rDNA sequencing, Marinomonas sp ., Zobellella Pseudomonas . were newly identified at subspecies level. Notably, this first to report capability The substrate specificity each strain was analyzed toward poly-α-L-guluronate poly-β-D-mannuronate, two major alginate polymeric components. Furthermore, 3 demonstrated synthesize auxin, application Arabidopsis thaliana confirmed enhanced vegetative growth. These findings advance our understanding degradation highlight these lyases valuable resources biotechnology applications. In addition, biofertilizers for promoting production functional oligosaccharides underscores need further exploration development field. IMPORTANCE aimed isolate samples collected Korea’s areas evaluate biofertilizers. primary component brown algae, breaks down into which are known enhance study, isolated, them showed promotion stress defense through strong biofilm formation auxin Importantly, exhibited growth-promoting potential, demonstrating applicability combination with seaweed-based fertilizers. provide insights that could broaden industrial utilization seaweed-derived fertilizers, contributing agricultural productivity sustainability.

Language: Английский

Characterization of alginate-degrading bacteria isolated from seaweed-producing areas of South Korean territory and verification of the bacteria as plant growth-promoting biofertilizer DOI Creative Commons

Seung Chan Jeong,

Pyeong Ho Lee,

Joon‐Kwan Moon

et al.

Microbiology Spectrum, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

ABSTRACT Alginate, a carbohydrate polymer produced by seaweed and some bacteria, is widely used in the food medicine industries. Alginate oligosaccharides, depolymerizing alginate, exhibit diverse biological functions, such as plant protection growth promotion, enhancement of microbial metabolic activity, potential applications biofuel production. This study isolated 13 alginate-degrading bacterial strains from over thousand seaside soil bacteria South Korea investigated their characteristics. Through 16S rDNA sequencing, Marinomonas sp ., Zobellella Pseudomonas . were newly identified at subspecies level. Notably, this first to report capability The substrate specificity each strain was analyzed toward poly-α-L-guluronate poly-β-D-mannuronate, two major alginate polymeric components. Furthermore, 3 demonstrated synthesize auxin, application Arabidopsis thaliana confirmed enhanced vegetative growth. These findings advance our understanding degradation highlight these lyases valuable resources biotechnology applications. In addition, biofertilizers for promoting production functional oligosaccharides underscores need further exploration development field. IMPORTANCE aimed isolate samples collected Korea’s areas evaluate biofertilizers. primary component brown algae, breaks down into which are known enhance study, isolated, them showed promotion stress defense through strong biofilm formation auxin Importantly, exhibited growth-promoting potential, demonstrating applicability combination with seaweed-based fertilizers. provide insights that could broaden industrial utilization seaweed-derived fertilizers, contributing agricultural productivity sustainability.

Language: Английский

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