Effects of Fire Phoenix (a genotype mixture of Fesctuca arundinecea L.) and Mycobacterium sp. on the degradation of PAHs and bacterial community in soil

Zhao, Xuyang; Miao, Renhui; Guo, Ming; Zhou, Yanmei

doi:10.1007/s11356-021-12432-9

Cited by 13 publications

(4 citation statements)

References 49 publications

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“…These results indicate that these strains have great potential for bioremediation of contaminated soil from gas stations. In this study, it was found that petroleum contamination significantly promoted the proliferation of Pseudoxanthomonas, Pseudomonas, Mycobacterium, Immundisolibacter, etc., which have been widely studied as strains capable of degrading aromatic hydrocarbons in petroleum [33,34]. The mechanism of microbial degradation of petroleum pollutants is to regulate relevant enzymes to decompose aromatic hydrocarbons and absorb carbon source materials necessary for life activities through their own metabolic activities, and the energy generated in the metabolic process can be used to carry out various life activities.…”

Section: Discussionmentioning

confidence: 99%

Metagenomics-metabolomics analysis of microbial function and metabolism in petroleum-contaminated soil

Xiao

et al. 2023

Braz J Microbiol

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Contamination of soil by petroleum is becoming increasingly serious in the world today. However, the research on gene functional characteristics, metabolites and distribution of microbial genomes in oil-contaminated soil is limited. Considering that, metagenomic and metabonomic were used to detect microbes and metabolites in oil-contaminated soil, and the changes of functional pathways were analyzed. We found that oil pollution significantly changed the composition of soil microorganisms and metabolites, and promoted the relative abundance of Pseudoxanthomonas, Pseudomonas, Mycobacterium, Immundisolibacter, etc. The degradation of toluene, xylene, polycyclic aromatic hydrocarbon and fluorobenzoate increased in Xenobiotics biodegradation and metabolism. Key monooxygenases and dioxygenase systems were regulated to promote ring opening and degradation of aromatic hydrocarbons. Metabolite contents of polycyclic aromatic hydrocarbons (PAHs) such as 9-fluoronone and gentisic acid increased significantly. The soil microbiome degraded petroleum pollutants into small molecular substances and promoted the bioremediation of petroleum-contaminated soil. Besides, we discovered the complete degradation pathway of petroleum-contaminated soil microorganisms to generate gentisic acid from the hydroxylation of naphthalene in PAHs by salicylic acid. This study offers important insights into bioremediation of oil-contaminated soil from the aspect of molecular regulation mechanism and provides a theoretical basis for the screening of new oil degrading bacteria.

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Section: Discussionmentioning

confidence: 99%

Metagenomics-metabolomics analysis of microbial function and metabolism in petroleum-contaminated soil

Xiao

et al. 2023

Braz J Microbiol

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“…Meanwhile, Actinomadura has a strong antimicrobial sensitivity and can effectively inhibit soil pathogens and promote plant growth ( Li et al., 2022 ; Watson et al., 2022 ). Mycobacterium has an important role in degrading soil hazardous substances, and a large number of studies have shown that increasing the abundance of Mycobacterium sp in soil can reduce the content of different types of soil hazardous substances, improve soil texture, and promote soil nutrients cycling for healthy plant growth ( Kim et al., 2013 ; Kandil et al., 2015 ; Li et al., 2021a ; Zhao X. et al., 2021 ). It can be seen that continuous planting led to a decrease in the abundance of Actinoallomurus and Actinomadura in the rhizosphere soil, a decrease in the nutrient cycling capacity of the rhizosphere soil, a decrease in the content of available nutrients, and an impact on the C. equisetifolia tree growth; second, continuous planting led to a decrease in the abundance of Mycobacterium in the C. equisetifolia tree rhizosphere soil, which reduced the degradation capacity of harmful substances, increased the accumulation of harmful substances in the soil, and hindered the C. equisetifolia tree growth.…”

Section: Discussionmentioning

confidence: 99%

Metagenomics-based exploration of key soil microorganisms contributing to continuously planted Casuarina equisetifolia growth inhibition and their interactions with soil nutrient transformation

Wang,

Lin,

et al. 2023

Front. Plant Sci.

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Casuarina equisetifolia (C. equisetifolia) is an economically important forest tree species, often cultivated in continuous monoculture as a coastal protection forest. Continuous planting has gradually affected growth and severely restricted the sustainable development of the C. equisetifolia industry. In this study, we analyzed the effects of continuous planting on C. equisetifolia growth and explored the rhizosphere soil microecological mechanism from a metagenomic perspective. The results showed that continuous planting resulted in dwarfing, shorter root length, and reduced C. equisetifolia seedling root system. Metagenomics analysis showed that 10 key characteristic microorganisms, mainly Actinoallomurus, Actinomadura, and Mycobacterium, were responsible for continuously planted C. equisetifolia trees. Quantitative analysis showed that the number of microorganisms in these three genera decreased significantly with the increase of continuous planting. Gene function analysis showed that continuous planting led to the weakening of the environmental information processing-signal transduction ability of soil characteristic microorganisms, and the decrease of C. equisetifolia trees against stress. Reduced capacity for metabolism, genetic information processing-replication and repair resulted in reduced microbial propagation and reduced microbial quantity in the rhizosphere soil of C. equisetifolia trees. Secondly, amino acid metabolism, carbohydrate metabolism, glycan biosynthesis and metabolism, lipid metabolism, metabolism of cofactors and vitamins were all significantly reduced, resulting in a decrease in the ability of the soil to synthesize and metabolize carbon and nitrogen. These reduced capacities further led to reduced soil microbial quantity, microbial carbon and nitrogen, microbial respiration intensity, reduced soil enzyme nutrient cycling and resistance-related enzyme activities, a significant reduction in available nutrient content of rhizosphere soils, a reduction in the ion exchange capacity, and an impediment to C. equisetifolia growth. This study provides an important basis for the management of continuously planted C. equisetifolia plantations.

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“…DGGE method can discrete DNA strength with only one specific base-pair variance however they are identical base on the length. In this method the gradient of denaturants electrophoretic system is based on the melting point [58]. With the same rule as DGGE method, in TGGE gradient temperature would be used rather than chemical denaturants.…”

Section: Denaturing Gradient Gel Electrophoresis (Dgge) and Temperatu...mentioning

confidence: 99%

Unraveling Techniques for Plant Microbiome Structure Analysis

Sraphet

Javadi

2022

Diversity

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Microbiome plays vital role in the life. Study the microbiome of plants with great impact in the planet can provide significant information to solve many problems. Therefore, finding structural population of plant microbiome needs scientific approach. Revealing the specific biochemical and genetical approaches towards identification of specific population provided the growing bodies of methods and procedures to study and analysis the plant microbiomes. Thus, this mini-review paper presents the summarized of scientific methods for study, identify and structural population analysis of plant microbiome.

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Effects of Fire Phoenix (a genotype mixture of Fesctuca arundinecea L.) and Mycobacterium sp. on the degradation of PAHs and bacterial community in soil

Cited by 13 publications

References 49 publications

Metagenomics-metabolomics analysis of microbial function and metabolism in petroleum-contaminated soil

Metagenomics-metabolomics analysis of microbial function and metabolism in petroleum-contaminated soil

Metagenomics-based exploration of key soil microorganisms contributing to continuously planted Casuarina equisetifolia growth inhibition and their interactions with soil nutrient transformation

Unraveling Techniques for Plant Microbiome Structure Analysis

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