Enrichment of endophytic Actinobacteria in roots and rhizomes of Miscanthus × giganteus plants exposed to diclofenac and sulfamethoxazole

Sauvêtre, Andrés; Węgrzyn, Anna; Yang, Luhua; Vestergaard, Gisle; Miksch, K.; Schröder, Peter; Radl, Viviane

doi:10.1007/s11356-020-07609-7

Cited by 29 publications

(17 citation statements)

References 73 publications

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“…Furthermore, it is known that plant-associated actinobacteria (representatives of Microbacterium spp. in particular) are characterized by their high resistance and degradative activity to a polycyclic NSAID diclofenac [ 68 , 69 ].…”

Section: Resultsmentioning

confidence: 99%

Response of Rhodococcus cerastii IEGM 1278 to toxic effects of ibuprofen

et al. 2021

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The article expands our knowledge on the variety of biodegraders of ibuprofen, one of the most frequently detected non-steroidal anti-inflammatory drugs in the environment. We studied the dynamics of ibuprofen decomposition and its relationship with the physiological status of bacteria and with additional carbon and energy sources. The involvement of cytoplasmic enzymes in ibuprofen biodegradation was confirmed. Within the tested actinobacteria, Rhodococcus cerastii IEGM 1278 was capable of complete oxidation of 100 μg/L and 100 mg/L of ibuprofen in 30 h and 144 h, respectively, in the presence of an alternative carbon source (n-hexadecane). Besides, the presence of ibuprofen induced a transition of rhodococci from single- to multicellular lifeforms, a shift to more negative zeta potential values, and a decrease in the membrane permeability. The initial steps of ibuprofen biotransformation by R. cerastii IEGM 1278 involved the formation of hydroxylated and decarboxylated derivatives with higher phytotoxicity than the parent compound (ibuprofen). The data obtained indicate potential threats of this pharmaceutical pollutant and its metabolites to biota and natural ecosystems.

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Section: Resultsmentioning

confidence: 99%

Response of Rhodococcus cerastii IEGM 1278 to toxic effects of ibuprofen

et al. 2021

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“…Geobacter , a member of the phylum Proteobacteria , is considered a potential SDZ degrader ( Zhang et al, 2019a ). The genus Microbacterium in the phylum Actinobacteria can also use SMX as the sole carbon source under aerobic conditions ( Sauvetre et al, 2020 ; Ouyang et al, 2021 ). The molecular mechanism of SMX catabolism by Microbacterium is initiated by ipso-hydroxylation, followed by NADH-dependent hydroxylation of the carbon atom attached to the sulfonyl group, which leads to the release of sulfite, 3-amino-5-methylisoxazole, and benzoquinone imine, of which the latter is converted to 4-aminophenol ( Ricken et al, 2013 ).…”

Section: Functional Microorganisms In Antibiotic Removalmentioning

confidence: 99%

“…In addition, the first Watch List of the EU Water Framework Directive [European Commission (EC)2015] identifies the anti-inflammatory diclofenac (DCF) and the antibiotic SMX as two emerging contaminants ( Sauvetre et al, 2020 ). For DCF, Bessa et al (2017) demonstrated that strain Brevibacterium sp.…”

Section: Functional Microorganisms In Antibiotic Removalmentioning

confidence: 99%

A Review on Microorganisms in Constructed Wetlands for Typical Pollutant Removal: Species, Function, and Diversity

Wang

Long

et al. 2022

Front. Microbiol.

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Constructed wetlands (CWs) have been proven as a reliable alternative to traditional wastewater treatment technologies. Microorganisms in CWs, as an important component, play a key role in processes such as pollutant degradation and nutrient transformation. Therefore, an in-depth analysis of the community structure and diversity of microorganisms, especially for functional microorganisms, in CWs is important to understand its performance patterns and explore optimized strategies. With advances in molecular biotechnology, it is now possible to analyze and study microbial communities and species composition in complex environments. This review performed bibliometric analysis of microbial studies in CWs to evaluate research trends and identify the most studied pollutants. On this basis, the main functional microorganisms of CWs involved in the removal of these pollutants are summarized, and the effects of these pollutants on microbial diversity are investigated. The result showed that the main phylum involved in functional microorganisms in CWs include Proteobacteria, Bacteroidetes, Actinobacteria and Firmicutes. These functional microorganisms can remove pollutants from CWs by catalyzing chemical reactions, biodegradation, biosorption, and supporting plant growth, etc. Regarding microbial alpha diversity, heavy metals and high concentrations of nitrogen and phosphorus significantly reduce microbial richness and diversity, whereas antibiotics can cause large fluctuations in alpha diversity. Overall, this review can provide new ideas and directions for the research of microorganisms in CWs.

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“…Although the removal of PPCPs by constructed wetlands has been extensively studied, information on plant-microbe interaction in their biodegradation remains limited to date. By employing 16S rRNA amplicon sequencing, Sauvêtre et al [75] showed that, in the microbiome of Miscanthus × giganteus exposed to diclofenac and sulfamethoxazole, Actinobacteria from the genera Streptomyces, Microbacterium, and Glycomyces were more abundant than in non-treated plants. Among cultivable endophytic isolates, Streptomyces griseorubiginosus strains DS24 and DS4 and Microbacterium sp.…”

Section: Removal Of Pharmaceutical and Personal Care Products (Ppcps)mentioning

confidence: 99%

“…MG7 obtained from Phalaris arundinacea and Miscanthus × giganteus roots, respectively, were indicated as the most promising in the degradation of these PPCPs. Since the isolates showed moderate activity in in vitro assays in both cases, they should be used in consortia rather than individually [75,76]. Despite the increase in the interest in the degradation of non-steroidal anti-inflammatory drugs, little is known about the microbiological breakdown of naproxen.…”

Section: Removal Of Pharmaceutical and Personal Care Products (Ppcps)mentioning

confidence: 99%

Selection of Endophytic Strains for Enhanced Bacteria-Assisted Phytoremediation of Organic Pollutants Posing a Public Health Hazard

Karaś¹,

Wdowiak-Wróbel²,

Sokołowski³

2021

IJMS

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Anthropogenic activities generate a high quantity of organic pollutants, which have an impact on human health and cause adverse environmental effects. Monitoring of many hazardous contaminations is subject to legal regulations, but some substances such as therapeutic agents, personal care products, hormones, and derivatives of common organic compounds are currently not included in these regulations. Classical methods of removal of organic pollutants involve economically challenging processes. In this regard, remediation with biological agents can be an alternative. For in situ decontamination, the plant-based approach called phytoremediation can be used. However, the main disadvantages of this method are the limited accumulation capacity of plants, sensitivity to the action of high concentrations of hazardous pollutants, and no possibility of using pollutants for growth. To overcome these drawbacks and additionally increase the efficiency of the process, an integrated technology of bacteria-assisted phytoremediation is being used recently. For the system to work, it is necessary to properly select partners, especially endophytes for specific plants, based on the knowledge of their metabolic abilities and plant colonization capacity. The best approach that allows broad recognition of all relationships occurring in a complex community of endophytic bacteria and its variability under the influence of various factors can be obtained using culture-independent techniques. However, for practical application, culture-based techniques have priority.

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Enrichment of endophytic Actinobacteria in roots and rhizomes of Miscanthus × giganteus plants exposed to diclofenac and sulfamethoxazole

Cited by 29 publications

References 73 publications

Response of Rhodococcus cerastii IEGM 1278 to toxic effects of ibuprofen

Response of Rhodococcus cerastii IEGM 1278 to toxic effects of ibuprofen

A Review on Microorganisms in Constructed Wetlands for Typical Pollutant Removal: Species, Function, and Diversity

Selection of Endophytic Strains for Enhanced Bacteria-Assisted Phytoremediation of Organic Pollutants Posing a Public Health Hazard

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