Response to Grygar (2020) comments on “Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus”- Pidlisnyuk et al. (2019). Environmental pollution, 261: 113038

Pidlisnyuk, Valentina; Erickson, Larry E.; Stefanovska, Tatyana; Hettiarachchi, Ganga M.; Davis, Lawrence C.; Trögl, Josef; Shapoval, Pavlo

doi:10.1016/j.envpol.2020.115037

Cited by 3 publications

References 28 publications

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Two microbes assisting Miscanthus floridulus in remediating multi-metal(loid)s-contaminated soil

Xiao,

Ma,

Chen

et al. 2024

Environ Sci Pollut Res

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Miscanthus has good tolerance to muti-metal(loid)s and has received increasing attention in remediated studies of metal(loid)s-contaminated soil. In this study, we explored the synergic effects of Miscanthus oridulus (Lab.) and two plant growth-promoting bacteria (PGPB), TS8 and MR2, a liated to Enterobacteriaceae on remediation of muti-metal(loid)s contaminated soil. The results exhibited a decrease of metal(loid)s except for copper contents in the soil in bacterial inoculation groups, indicating that MR2 and TS8 could enhance the remediation of metal(loid)s. Moreover, increased fresh/dry weight and height indicated that inoculated bacteria could promote Miscanthus growth. Although the activities of antioxidant enzymes and the content of chlorophyll in the overground tissues showed no signi cant increase or even decrease, the activities of antioxidant enzymes in the underground tissues and soil, as well as the contents of soil nutrients (available K and P), were signi cantly (p < 0.05) increased to some certain. Bacterial inoculants could also decrease the soil pH. High-throughput sequencing analysis showed that the bacterial inoculant affected the rhizosphere bacterial community and reduced community diversity, but the relative abundance of some PGPB were found to increase. Phylogenetic molecular ecological networks indicated that bacterial inoculants reduced interactions between rhizosphere bacteria and thereby led to a simpler network structure but increased the proportion of positive-correlation links and enhanced the metabiosis and symbiosis of those bacteria. Spearman's test showed that OTUs a liated with Enterobacteriaceae and soil nutrients were critical for metal(loid) remediation and Miscanthus growth. The results of this study provide a basis for the synergic remediation of muti-metal(loid)s-contaminated soils by Miscanthus and PGPB and provide a reference for the subsequent regulation of Miscanthus remediation e ciency by the other PGPB or critical bacteria.

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Two microbes assisting Miscanthus floridulus in remediating multi-metal(loid)s-contaminated soil

Xiao,

Ma,

Chen

et al. 2024

Environ Sci Pollut Res

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Two microbes assisting Miscanthus floridulus in remediating multi-metal(loid)s contaminated soil

Xiao,

Ma,

Chen

et al. 2023

Preprint

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Miscanthus has good tolerance to muti-metal(loid)s and has received increasing attention in remediated studies of metal(loid)s-contaminated soil. In this study, we explored the synergic effects of Miscanthus floridulus (Lab.) and two plant growth-promoting bacteria (PGPB), TS8 and MR2, affiliated to Enterobacteriaceae on remediation of muti-metal(loid)s contaminated soil. The results exhibited a decrease of metal(loid)s except for copper contents in the soil in bacterial inoculation groups, indicating that MR2 and TS8 could enhance the remediation of metal(loid)s. Moreover, increased fresh/dry weight and height indicated that inoculated bacteria could promote Miscanthus growth. Although the activities of antioxidant enzymes and the content of chlorophyll in the overground tissues showed no significant increase or even decrease, the activities of antioxidant enzymes in the underground tissues and soil, as well as the contents of soil nutrients (available K and P), were significantly (p < 0.05) increased to some certain. Bacterial inoculants could also decrease the soil pH. High-throughput sequencing analysis showed that the bacterial inoculant affected the rhizosphere bacterial community and reduced community diversity, but the relative abundance of some PGPB were found to increase. Phylogenetic molecular ecological networks indicated that bacterial inoculants reduced interactions between rhizosphere bacteria and thereby led to a simpler network structure but increased the proportion of positive-correlation links and enhanced the metabiosis and symbiosis of those bacteria. Spearman’s test showed that OTUs affiliated with Enterobacteriaceae and soil nutrients were critical for metal(loid) remediation and Miscanthus growth. The results of this study provide a basis for the synergic remediation of muti-metal(loid)s-contaminated soils by Miscanthus and PGPB and provide a reference for the subsequent regulation of Miscanthus remediation efficiency by the other PGPB or critical bacteria.

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Biochar-Supported Phytoremediation of Dredged Sediments Contaminated by HCH Isomers and Trace Elements Using Paulownia tomentosa

Mamirova,

Pidlisnyuk,

Hrabak

et al. 2024

Sustainability

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The remediation of dredged sediments (DS) as a major waste generation field has become an urgent environmental issue. In response to the limited strategies to restore DS, the current study aimed to investigate the suitability of Paulownia tomentosa (Thunb.) Steud as a tool for decontamination of DS, both independently and in combination with a sewage sludge-based biochar. The experimental design included unamended and biochar-supplemented DS with the application rates of 2.5, 5.0, and 10.0%, in which vegetation of P. tomentosa was monitored. The results confirmed that the incorporation of biochar enriched DS with the essential plant nutrients (P, Ca, and S), stimulated biomass yield and improved the plant’s photosynthetic performance by up to 3.36 and 80.0 times, respectively; the observed effects were correlated with the application rates. In addition, biochar enhanced the phytostabilisation of organic contaminants and shifted the primary accumulation of potentially toxic elements from the aboveground biomass to the roots. In spite of the inspiring results, further research has to concentrate on the investigation of the mechanisms of improvement the plant’s development depending on biochar’s properties and application rate and studying the biochar’s mitigation effects in the explored DS research system.

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Response to Grygar (2020) comments on “Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus”- Pidlisnyuk et al. (2019). Environmental pollution, 261: 113038

Cited by 3 publications

References 28 publications

Two microbes assisting Miscanthus floridulus in remediating multi-metal(loid)s-contaminated soil

Two microbes assisting Miscanthus floridulus in remediating multi-metal(loid)s-contaminated soil

Two microbes assisting Miscanthus floridulus in remediating multi-metal(loid)s contaminated soil

Biochar-Supported Phytoremediation of Dredged Sediments Contaminated by HCH Isomers and Trace Elements Using Paulownia tomentosa

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