Microbial diversity and ecological interactions of microorganisms in the mangrove ecosystem: Threats, vulnerability, and adaptations

Palit, Krishna; Rath, Sonalin; Chatterjee, Suman; Das, Surajit

doi:10.1007/s11356-022-19048-7

Cited by 59 publications

(39 citation statements)

References 316 publications

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“…However, all the researchers who are actively involved in this field should focus on the selection of a proper strain of bacteria that is capable of producing or accumulating PHB at a high level. The use of terrestrial bacteria that are capable of producing bioplastics has been extensively studied [ 24 ]; however, the mangrove environment has received the least attention compared with its terrestrial counterparts [ 25 ]. Therefore, the purpose of this study was to isolate the bacteria that can produce PHB from soil samples collected from a mangrove area.…”

Section: Discussionmentioning

confidence: 99%

Polyhydroxybutyrate (PHB)-Based Biodegradable Polymer from Agromyces indicus: Enhanced Production, Characterization, and Optimization

et al. 2022

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Recently, there has been significant interest in bio-based degradable plastics owing to their potential as a green and sustainable alternative to synthetic plastics due to their biodegradable properties. Polyhydroxybutyrate (PHB) is a biodegradable polymer that is produced by bacteria and archaea as carbon and energy reserves. Due to its rapid degradation in natural environments, it can be considered a biodegradable plastic alternative. In the present study, a dye-based procedure was used to screen PHB-producing bacteria isolated from mangrove soil samples. Among the seven isolates, Agromyces indicus (A. indicus), identified by means of 16S rRNA analysis, accumulated the highest amount of PHB. The extracted polymer was characterized by a UV–Vis spectrophotometer, Fourier-transform infrared (FTIR) spectroscopy, and for the presence of the phbB gene, which confirmed the structure of the polymer as PHB. The maximum PHB production by A. indicus was achieved after 96 h of incubation at a pH of 8.0 and 35 °C in the presence of 2% NaCl, with glucose and peptone as the carbon and nitrogen sources, respectively. The strain was found to be capable of accumulating PHB when various cheap agricultural wastes, such as rice, barley, corn, and wheat bran, were used as the carbon sources. The response surface methodology (RSM) through the central composite design (CCD) for optimizing the PHB synthesis was found to be highly efficient at augmenting the polymer yields. As a result of the optimum conditions obtained from the RSM, this strain can increase the PHB content by approximately 1.4-fold when compared with an unoptimized medium, which would substantially lower the production cost. Therefore, the isolate A. indicus strain B2 may be regarded as one of the best candidates for the industrial production of PHB from agricultural wastes, and it can remove the environmental concerns associated with synthetic plastic.

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Section: Discussionmentioning

confidence: 99%

Polyhydroxybutyrate (PHB)-Based Biodegradable Polymer from Agromyces indicus: Enhanced Production, Characterization, and Optimization

et al. 2022

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“…Mangrove ecosystems act as a connection between the terrestrial and marine ecosystems, providing habitat to countless organisms [5]. Among these, micro-organisms play a crucial role in the functions and maintenance of mangrove ecosystem by significantly contributing to biochemical cycles and providing nutrients to plants and animals [6].…”

Section: Ecology and Isolationmentioning

confidence: 99%

Microbulbifer bruguierae sp. nov., isolated from sediment of mangrove plant Bruguiera sexangula, and comparative genomic analyses of the genus Microbulbifer

Long,

Chen,

Fan

et al. 2024

International Journal of Systematic and Evolutionary Microbiology

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A Gram-negative, non-motile, strictly aerobic, rod-shaped bacterium, designated as H12T, was isolated from the sediments of mangrove plant Bruguiera sexangula taken from Dapeng district, Shenzhen, PR China. The pairwise 16S rRNA gene sequence analysis showed that strain H12T shared high identity levels with species of the genus Microbulbifer , with the highest similarity level of 98.5 % to M. pacificus SPO729T, followed by 98.1 % to M. donghaiensis CN85T. Phylogenetic analysis using core-genome sequences showed that strain H12T formed a cluster with type species of M. pacificus SPO729T and M. harenosus HB161719T. The complete genome of strain H12T was 4 481 396 bp in size and its DNA G+C content was 56.7 mol%. The average nucleotide identity and digital DNA–DNA hybridization values among strain H12T and type species of genus Microbulbifer were below the cut-off levels of 95–96 and 70 %, respectively. The predominant cellular fatty acids of strain H12T were iso-C15 : 0 (22.5 %) and C18 : 1 ω7c (13.9 %). Ubiquinone-8 was detected as the major respiratory quinone. The polar lipids of strain H12T comprised one phosphatidylglycerol, one phosphatidylethanolamine, one unidentified aminoglycophospholipid, one unidentified glycophospholipid, three unidentified glycolipids, two unidentified aminolipids, and one unidentified lipid. Based on polyphasic evidence, strain H12T represents a novel species of the genus Microbulbifer , for which the name Microbulbifer bruguierae sp. nov. is proposed. The type strain is H12T (=KCTC 92859T=MCCC 1K08451T). Comparative genomic analyses of strain H12T with strains of the genus Microbulbifer reveal its potential in degradation of pectin.

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“…The soil-microbe-plant system is a highly complex and dynamic ecosystem, where each component is interconnected and dependent on the other for survival (Palit et al, 2022). Soil provides a physical and chemical environment for plant growth, and it is also a habitat for a vast number of microorganisms, which are crucial for maintaining soil health and fertility.…”

Section: Introductionmentioning

confidence: 99%

Uncovering the Role of Microbes in Plant Health using Soil Database Insights

Yetgin

2023

Preprint

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The soil-microbe-plant system is a complex and dynamic network of interactions that play a crucial role in plant growth and development. The use of soil databases has allowed us to gain insights into the diverse microbial communities present in soil and their impact on plant health. In this review, we explore the role of soil microbes in plant health and how soil database analysis has facilitated our understanding of their functions. We discuss the key microbial groups involved in nutrient cycling, disease suppression, and plant growth promotion, and their contributions to plant health. Additionally, we examine the impact of abiotic and biotic stressors on the soil microbial community and its subsequent effects on plant health. Finally, we highlight the potential applications of soil database insights for sustainable agriculture and plant health management. Our review demonstrates the importance of soil microbial diversity and highlights the value of soil database analysis as a tool for unraveling the intricate interactions within the soil-microbe-plant system.

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Microbial diversity and ecological interactions of microorganisms in the mangrove ecosystem: Threats, vulnerability, and adaptations

Cited by 59 publications

References 316 publications

Polyhydroxybutyrate (PHB)-Based Biodegradable Polymer from Agromyces indicus: Enhanced Production, Characterization, and Optimization

Polyhydroxybutyrate (PHB)-Based Biodegradable Polymer from Agromyces indicus: Enhanced Production, Characterization, and Optimization

Microbulbifer bruguierae sp. nov., isolated from sediment of mangrove plant Bruguiera sexangula, and comparative genomic analyses of the genus Microbulbifer

Uncovering the Role of Microbes in Plant Health using Soil Database Insights

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