Phytoremediation effect of Scirpus triqueter inoculated plant-growth-promoting bacteria (PGPB) on different fractions of pyrene and Ni in co-contaminated soils

Chen, Xiao; Liu, Xiaoyan; Zhang, Xinying; Cao, Liya; Hu, Xiaoxin

doi:10.1016/j.jhazmat.2016.12.009

Cited by 63 publications

(20 citation statements)

References 45 publications

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“…This result was different from the previous report that the plant growth promotion bacterial (PGPB) accumulation of pyrene decreased the biomass of stem (Chen et al 2017).…”

Section: Discussioncontrasting

confidence: 99%

“…Parallel, biosurfactants produced by plant growth promoting microbial (PGPM) could increase the bioavailability of heavy metals and PAHs (Juwarkar et al 2007;Braud et al 2006). As far as the remediation of heavy metal, the presence of heavy metals stimulated PGPM to produce siderophores, which in turn increased the bioavailability of heavy metals (Gaonkar et al 2013;Tribedi et al 2016;Chen et al 2017). In case of remediating PAHs, plants provide a good platform to recruit more efficient microbes to digest or degrade the PAHs (Mansour et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

Li¹,

Zhu

Wang

et al. 2019

Preprint

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Background:Coexistence of polycylic aromatic hydrocarbons (PAHs) and heavy metals deleteriously threatens the quality of environmental health. Few reports uncover the mechanism of inoculation plants with Piriformospora indica for remediating PAH-metal co-contaminated soil by analyzing the chemical speciations of contaminants. This study investigated the influence of inoculation Medicago sativa with Piriformospora indica to remediate phenanthrene (kind of PAHs), and cadmium (one of heavy metals) co-contaminated soil by analyzing the plant growth, physiological parameters and chemical speciation in rhizospheric and non-rhizospheric soil. Results:The presence of P. indica significantly increased plants tolerance, Chlorophyll a, Chlorophyll b, maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene and/or cadmium contaminated soil. P. indica inoculation in M. sativa root increased fluorescein diacetate activities in phenanthrene, cadmium and both of that co-contaminated soil, especially in non-rhezospheric soil. The presence of phenanthrene hindered the inoculated plant from accumulating cadmium to some extent; Whereas the presence of cadmium did not hinder the degradation of phenanthrene in both rhizospheric and non-rhizospheric soil after P. indica colonization. Although the poor bioavailability of cadmium in rhizospheric soil restricted the transportation into stem, P. indica colonization in plant efficiently increased cadmium accumulation in root in cadmium and phenanthrene co-contaminated soil. Conclusions: In conclusion, the work provides the theoretical basis that Piriformospora indica combined with Medicago sativa contributed to the remediation of PAH-Metal co-contaminated soil.

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“…This result was different from the previous report that the plant growth promotion bacterial (PGPB) accumulation of pyrene decreased the biomass of stem (Chen et al 2017).…”

Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

Li¹,

Zhu

Wang

et al. 2019

Preprint

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“…One g of the collected sputum sample was mixed with 50 ml of sterile water and shaken to obtain a vermicompost suspension, which was placed in a 50 ml NAvermicompost extract complex medium, and cultured at 200 rpm for 2 days at 30°C with shaking. It was then inoculated into a flat containing 50 ml of DF (Chen et al, 2017) at 200 rpm for 1 day at 30°C. Finally, the same volume (1 mL) of the suspension was transferred to the ADF (Chen et al, 2017) culture solution, and then 1 mL of the bacterial solution was taken up and applied to the ADF solid medium, cultured at 30°C until a single colony appeared, then purified and stored in a freezer at 4°C.…”

Section: Isolation and Activity Identification Of Acc Deaminasementioning

confidence: 99%

Effect of inoculation of strains with ACC deaminase isolated from vermicompost on seed germination and some physiological attributes in maize (Zea mays L.) exposed to salt stress

Zhou¹,

Ahmed²,

Cheng³

et al. 2019

PAK.J.BOT.

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Bacterial inoculation containing 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity can induce stress tolerance in maize. Vermicompost is a rich source of growth promoting microbes, probably with a unique source for bacteria having ACC deaminase activity. The present investigation aimed to isolate strains with ACC deaminase activity from vermicompost and quantify their effects on seed germination and seedling growth of maize under salt stress. The ACC deaminase-producing strains were isolated from the vermicompost by the directional enrichment screening method. The 16S rDNA gene sequence homology analysis combined with physio-biochemical characteristics were used to identify the taxonomic status of. SB was identified as Stenotropho monas sp., RC and RF were Raoultella sp., and KE was Klebsiellas sp. Maize seeds were germinated under varying level of salinity stress (level of salt stress in 0, 50, 100, 150 and 200 mM NaCl solution). Salinity stress reduced seed germination rate, embryo length and root lengths of seedlings of maize. The results showed that inoculation with four isolated bacterial strains improved seed germination and the growth of maize seedlings under the level of salinity stress in 150 mM NaCl solution. Growth improvement in maize seedlings was associated with increase in proline, chlorophyll content. Therefore, strains with ACC deaminase activity can effectively alleviate the damage to corn seeds and seedlings under salt stress.

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“…Parallel, biosurfactants produced by plant growth-promoting microorganism (PGPM) could increase the bioavailability of heavy metals and PAHs [27][28]. As far as the remediation of heavy metal, the presence of heavy metals stimulated PGPM to produce siderophores, which in turn increased the bioavailability of heavy metals [30][31][32]. In case of remediating PAHs, plants provide an effective platform to recruit more efficient microbes to digest or degrade the PAHs [1].…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

Zhu

Wang

et al. 2020

Preprint

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Background: Coexistence of polycylic aromatic hydrocarbons (PAHs) and heavy metals deleteriously threatens the quality of environmental health . Few reports uncover the mechanism of inoculation plants with Piriformospora indica for remediating PAH- m etal co-contaminated soil by analyzing the chemical speciations of contaminants . This study investigated the influence of inoculation Medicago sativa with P. indica to remediate phenanthrene (kind of PAHs ) , and cadmium (one of heavy metals ) co-contaminated soil by analyzing the plant growth, physiological parameters and chemical speciation in rhizosphere and non-rhizosphere . Results: T he presence of P. indica significantly increased plants tolerance, Chlorophyll a , Chlorophyll b , maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene an d /or cadmium contaminated soil. P. indica inoculation in M edicago sativa root increased f luorescein diacetate activities in phenanthrene, cadmium and both of that co-contaminated soil, especially in non-rhizosphere . The presence of phenanthrene hindered the inoculated plant from accumulating cadmium to some extent ; Whereas the presence of cadmium did not hinder the degradation of phenanthrene in both rhizosphere and non-rhizosphere after P. indica colonization. Although the poor bioavailability of cadmium in rhizosphere restricted the transportation into stem, P. indica colonization in plant efficiently increased cadmium accumulation in root in cadmium and phenanthrene co-contaminated soil. Conclusions: In conclusion, t he work provides the theoretical basis that Piriformospora indica combined with Medicago sativa contributed to the remediation of PAH-Metal co-contaminated soil.

show abstract

Phytoremediation effect of Scirpus triqueter inoculated plant-growth-promoting bacteria (PGPB) on different fractions of pyrene and Ni in co-contaminated soils

Cited by 63 publications

References 45 publications

Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

Effect of inoculation of strains with ACC deaminase isolated from vermicompost on seed germination and some physiological attributes in maize (Zea mays L.) exposed to salt stress

Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

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