Biodegradation of LDPE plastic by local strain of Bacillus sp. isolated from dump soil of Pekanbaru, Indonesia

Fibriarti, Bernadeta Leni; Feliatra, Feliatra; Amin, Bintal; Darwis, Darwis

doi:10.13057/biodiv/d221232

Cited by 8 publications

(4 citation statements)

References 17 publications

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“…Bacillus, which can bind heavy metals to the cell surfaces and provide bioremediation, was also responsible for degrading disposable face mask materials (Muzammil et al, 2021). Bacillus from various locations has been demonstrated to be an effective azo dye degrader (Guembri et al, 2021); plastic degrader (Fibriarti et al, 2021); and organometallic degrader (Tripathi et al, 2021). Figure 5.b illustrates the distribution of the predominant bacterial genera in samples collected from various locations, including landfills, mangroves, and beaches.…”

Section: Resultsmentioning

confidence: 99%

Bacterial Diversity of Discarded Face Masks from Landfills, Mangroves, and Beaches, in Java, Indonesia

2024

JJBS

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As the number of Covid-19 cases has increased, the production and use of face masks have also increased accordingly. This widespread use of face masks generates millions of tons of mask waste. This study analyzed the bacterial community composition of discarded masks from landfills (Piyungan, Jatibarang, Burangkeng); mangroves (Wanatirta, Tirang, Teluk Naga); and beaches (Parangtritis, Marina, Tanjung Pasir) in Yogyakarta, Semarang, Bekasi, and Tangerang, Java, Indonesia using 16S rRNA sequencing. Analyzing all samples from landfills, mangroves, and beaches revealed that the Proteobacteria phylum is the predominant. In addition, Firmicutes was the second-highest phylum in the samples from landfills and mangroves. In the meantime, Actinobacteria and Cyanobacteria dominated the phyla found in samples from beaches. Analyses at the genus level revealed that Bacillus members predominated in samples of discarded face masks from landfills. In addition, the most prevalent genus found in samples from mangroves and beaches was Vibrio. According to the findings, the distribution of bacterial communities differed among the various regions. Dissimilar bacterial communities and gradient distributions were found among discarded face masks in landfills, mangroves, and beaches. It was the first examination of bacterial distribution in discarded disposable face masks from various locations.

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Section: Resultsmentioning

confidence: 99%

Bacterial Diversity of Discarded Face Masks from Landfills, Mangroves, and Beaches, in Java, Indonesia

2024

JJBS

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Section: Resultsmentioning

confidence: 99%

Untitled

2023

JJBS

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Study areas include cell biology, genomics, microbiology, immunology, molecular biology, biochemistry, embryology, immunogenetics, cell and tissue culture, molecular ecology, genetic engineering and biological engineering, bioremediation and biodegradation, bioinformatics, biotechnology regulations, gene therapy, organismal biology, microbial and environmental biotechnology, marine sciences. The JJBS welcomes the submission of manuscript that meets the general criteria of significance and academic excellence. All articles published in JJBS are peerreviewed. Papers will be published approximately one to two months after acceptance.

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“…In general, Bacillus spp. are well-known for their HCN ( Walia et al, 2014 ; Brzezinska et al, 2020 ) and catalase production ( Fibriarti et al, 2021 ). HCN is known for its capacity to counter the development and growth of plant pathogens ( Nandi et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Characterization of plant growth promoting activities of indigenous bacteria of phosphate mine wastes, a first step toward revegetation

et al. 2022

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Morocco holds the vast majority of the world’s phosphate reserves, but due to the processes involved in extracting and commercializing these reserves, large quantities of de-structured, nutritionally deficient mine phosphate wastes are produced each year. In a semi-arid climate, these wastes severely hamper plant growth and development leading to huge unvegetated areas. Soil indigenous Plant Growth-Promoting Bacteria (PGPB) play a pivotal role in restauration of these phosphate mining wastes by revegetation, by increasing plants development, soil functioning, and nutrient cycling. The development of a vegetative cover above the degraded phosphate wastes, could stabilize and reintegrate these wastes in the surrounding environment. The current study’s objectives were to isolate, characterize, and identify indigenous bacterial strains, and test their PGP activity in vitro and, for the best-performing strains in planta, in order to assess their potential for acting as biofertilizers. A quantitative test for the synthesis of auxin and the production of siderophores as well as a qualitative test for the solubilization of phosphate were performed on all isolated bacterial strains. The production of hydrogen cyanide (HCN), exopolysaccharides (EPS), and enzymes were also examined. Three bacteria, selected among the best PGPB of this study, were tested in planta to determine whether such indigenous bacteria could aid plant growth in this de-structured and nutrient-poor mining soil. Using 16S rRNA gene sequencing, 41 bacterial strains were isolated and 11 genera were identified: Acinetobacter, Agrococcus, Bacillus, Brevibacterium, Microbacterium, Neobacillus, Paenibacillus, Peribacillus, Pseudarthrobacter, Stenotrophomonas, and Raoultella. Among the three best performing bacteria (related to Bacillus paramycoides, Brevibacterium anseongense, and Stenotrophomonas rhizophila), only Stenotrophomonas rhizophila and Brevibacterium anseongense were able to significantly enhance Lupinus albus L. growth. The best inoculation results were obtained using the strain related to Stenotrophomonas rhizophila, improving the plant’s root dry weight and chlorophyll content. This is also, to our knowledge, the first study to show a PGP activity of Brevibacterium anseongense.

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Biodegradation of LDPE plastic by local strain of Bacillus sp. isolated from dump soil of Pekanbaru, Indonesia

Cited by 8 publications

References 17 publications

Bacterial Diversity of Discarded Face Masks from Landfills, Mangroves, and Beaches, in Java, Indonesia

Bacterial Diversity of Discarded Face Masks from Landfills, Mangroves, and Beaches, in Java, Indonesia

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Characterization of plant growth promoting activities of indigenous bacteria of phosphate mine wastes, a first step toward revegetation

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