The Removal and Remediation of Phenanthrene and Pyrene in Soil by Mixed Cropping of Alfalfa and Rape

Pan, Shengwang; Wei, Shiqiang; Yuan, Xin; Cao, Sheng-Xian

doi:10.1016/s1671-2927(08)60185-6

Cited by 19 publications

(6 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nutrient agar media and mineral salts media were used for initial isolation and screening of rhizospheric bacteria. The composition of PNR and PNRG (PNR+5 mM glucose) per liter of distilled water [ 23 , 24 ], is PN (20x) 50 mL used as 50 mLL -1 : KH 2 PO 4 13.6% (wv -1 ), (NH 4 ) 2 SO 4 2.4% (wv -1 ), NaOH 2.5% (wv -1 ) and R salts used as 7 mLL -1 , MgSO 4 .7H 2 O 8% (wv -1 ), FeSO 4 .7H 2 O 0.2% (wv -1 ), HCl 0.4% (wv -1 ), Agar (2%) was used as solidifying agent.…”

Section: Methodsmentioning

confidence: 99%

Anthracene biodegradation capacity of newly isolated rhizospheric bacteria Bacillus cereus S13

et al. 2018

View full text Add to dashboard Cite

Biodegradation of hazardous pollutants is of immense importance for maintaining a clean environment. However, the concentration of such contaminants/pollutants can be minimized with the help of microorganisms that has the ability to degrade the toxic pollutants into non-toxic metabolites. In the current study, 23 bacterial isolates were purified from the rhizospheric soil of Sysimbrium irio, growing as a wild plant in the vicinity of gas filling stations in Peshawar city. The isolated strains were initially screened on solid nutrient agar and further purified by culturing it on anthracene amended mineral media (PNR). The bacterial growth and anthracene disappearance were observed by calculating optical density (OD). The isolates showed a concentration-dependent growth on anthracene amended PNR media at 30°C and pH7. Also, an increase in bacterial OD from 0.351 to 1.80 with increased shaking speed was noticed. On the contrary, alternate carbon sources (glucose, fructose, sucrose) or nitrogen sources (KNO3, NaNO3, NH4NO3 and CaNO3) posed inhibitory effect on bacterial growth during anthracene degradation. The recorded efficiency of anthracene degradation by the selected bacterial isolate (1.4×1023 CFUmL-1 and 1.80 OD) was 82.29%, after 120 h of incubation. The anthracene was degraded to 9, 10, dihydroxy-anthracene and anthraquinone, detected through GC-MS. The efficient bacterial isolate was identified as S13, a new strain of Bacillus cereus, using 16S rRNA analysis, showing 98% homology. The isolated bacterial strain S13 may be used as a potential tool for bioremediation of toxic hydrocarbons and to keep the environment free from PAH pollutants.

show abstract

Section: Methodsmentioning

confidence: 99%

Anthracene biodegradation capacity of newly isolated rhizospheric bacteria Bacillus cereus S13

et al. 2018

View full text Add to dashboard Cite

show abstract

“…For extraction of phenanthrene from the soil, method of 3550B EPA was used with some modification that was previously defined by Sheng-wang et al (2008) [ 31 ]. Soil samples were carefully collected and homogenized.…”

Section: Methodsmentioning

confidence: 99%

Influence of bioaugmentation on biodegradation of phenanthrene-contaminated soil by earthworm in lab scale

Asgharnia

Jafari

Kalantary

et al. 2014

J Environ Health Sci Engineer

View full text Add to dashboard Cite

BackgroundUse of earthworm to eliminate the phenanthrene from the soil (bioaccumulation) is developed as an economical method. Bioaugmentation of microorganism was used for promotion of bioaccumulation by earthworm. The aim of this study was to determine the bioaccumulation or biodegradation of phenanthrene by Eisenia fetida and bacterial consortium in polluted soil.MethodsThe amount of 0.4 kg of the polluted soil in the ratio of 10 and 30 mg phenanthrene per kg of dry soil was transferred into each pot. Afterwards, bacteria and earthworms were added to each pot in separate and combination. The samples were kept under field conditions, and the retention concentrations of phenanthrene were analyzed after 8 weeks.ResultsResults showed that the Eisenia fetida was able to significantly remove phenanthrene from the polluted soil samples. Bioaccumulation and bioaugmentation alone have the removal efficiency of 60.24% and 50.3%, respectively. In the combined mode, phenanthrene removal efficiency was 63.81%.ConclusionsThe current study indicated that the use of earthworms, could improve both phenanthrene bioavailability and microbial activity, which led to enhancing removal of carbon-based pollutants.

show abstract

“…Mixture cultivation has been testified to be positively associated with yield in agriculture (Trenbath, 1974;Agegnehu et al, 2006;Pan et al, 2008;Sturludottir, 2011), such as wheat mixture (Cai et al, 2019), millet and sorghum mix-cropping (Iijima et al, 2016), grass-alfalfa mixture (Berdahl et al, 2001), multipletree planting (Zemp et al, 2019), and multi-species grass mixture (Bouman et al, 2010;Acharya et al, 2012). Additionally, recent studies have showed effects of the mixture on plant growth by plant-soil interaction (Zhao et al, 2015;Granzow et al, 2017;Marron and Epron, 2019).…”

Section: Introductionmentioning

confidence: 99%

Beneficial Effects of Mixing Kentucky Bluegrass With Red Fescue via Plant-Soil Interactions in Black Soil of Northeast China

et al. 2020

View full text Add to dashboard Cite

Continuous monoculture of cool-season turfgrass causes soil degradation, and visual turf quality decline is a major concern in black soil regions of Northeast China. Turf mixtures can enhance turfgrass resistance to biotic and abiotic stresses and increase soil microbial diversity. Understanding mechanism by plant-soil interactions and changes of black soil microbial communities in turf mixture is beneficial to restoring the degradation of urbanized black soils and maintaining sustainable development of urban landscape ecology. In this study, based on the previous research of different sowing models, two schemes of turf monoculture and mixture were conducted in field plots during 2016-2018 in a black soil of Heilongjiang province of Northeast China. The mixture turf was established by mixing 50% Kentucky bluegrass "Midnight" (Poa pratensis L.) with 50% Red fescue "Frigg" (Festuca rubra L.); and the monoculture turf was established by sowing with pure Kentucky bluegrass. Turf performance, soil physiochemical properties, and microbial composition from rhizosphere were investigated. Soil microbial communities and abundance were analyzed by Illumina MiSeq sequencing and quantitative PCR methods. Results showed that turfgrass quality, turfgrass biomass, soil organic matter (SOM), urease, alkaline phosphatase, invertase, and catalase activities increased in PF mixture, but disease percentage and soil pH decreased. The microbial diversity was also significantly enhanced under turf mixture model. The microbial community compositions were significantly different between the two schemes. Turf mixtures obviously increased the abundances of Beauveria, Lysobacter, Chryseolinea, and Gemmatimonas spp., while remarkably reduced the abundances of Myrothecium and Epicoccum spp. Redundancy analysis showed that the compositions of bacteria and fungi were related to edaphic parameters, such as SOM, pH, and enzyme activities. Since the increasing of turf quality, biomass, and disease resistance were highly correlated with the changes of soil physiochemical parameters and microbial communities in turf mixture, which suggested that turf mixture with two species (i.e., Kentucky blue grass and Red fescue) changed soil microbial communities and enhanced visual turfgrass qualities through positive plant-soil interactions by soil biota.

show abstract

The Removal and Remediation of Phenanthrene and Pyrene in Soil by Mixed Cropping of Alfalfa and Rape

Cited by 19 publications

References 20 publications

Anthracene biodegradation capacity of newly isolated rhizospheric bacteria Bacillus cereus S13

Anthracene biodegradation capacity of newly isolated rhizospheric bacteria Bacillus cereus S13

Influence of bioaugmentation on biodegradation of phenanthrene-contaminated soil by earthworm in lab scale

Beneficial Effects of Mixing Kentucky Bluegrass With Red Fescue via Plant-Soil Interactions in Black Soil of Northeast China

Contact Info

Product

Resources

About