title: Streptomyces pactum assisted phytoremediation in Zn/Pb smelter contaminated soil of Feng County and its impact on enzymatic activities.
abstract: Anthropogenic activities, such as industrial expansion, smelting, mining and agricultural practices, have intensified the discharge of potentially toxic trace elements (PTEs) into the environment, threatening human health and other organisms. To assist phytoremediation by sorghum in soil contaminated by smelters/mines in Feng County (FC), a pot experiment was performed to examine the phytoremediation potential of Streptomyces pactum (Act12) + biochar. The results showed that root uptake of Zn and Cd was reduced by 45 and 22%, respectively, while the uptake of Pb and Cu increased by 17 and 47%, respectively. The shoot and root dry weight and chlorophyll content improved after Act12 inoculation. β-glucosidase, alkaline phosphatase and urease activities in soil improved and antioxidant activities (POD, PAL, PPO) decreased after application of Act12 + biochar due to a reduction in stress from PTEs. BCF, TF and MEA confirmed the role of Act12 in the amelioration and translocation of PTEs. PCA analysis showed a correlation between different factors that affect the translocation of PTEs. Overall, Act12 promoted the phytoremediation of PTEs. Field experiments on Act12 + biochar may provide new insights into the rehabilitation and restoration of soils contaminated by mines.
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Amjad
authors.initials: A
authors.lastname: Ali
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Di
authors.initials: D
authors.lastname: Guo
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.|Centre for Environmental Sciences, University of Sindh, Jamshoro 76080, Pakistan.
authors.forename: Amanullah
authors.initials: A
authors.lastname: Mahar
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Ma
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Ronghua
authors.initials: R
authors.lastname: Li
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Shen
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
authors.forename: Zengqiang
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism; D001673:Biodegradation, Environmental; D018533:Biomass; D002606:Charcoal / Q000737:chemistry; D002681:China; D000076282:Composting; D004787:Environmental Pollution / Q000032:analysis; D006801:Humans; D007854:Lead / Q000032:analysis*; D015227:Lipid Peroxidation; D008372:Manure / Q000032:analysis; D008906:Mining; D015999:Multivariate Analysis; D063245:Plant Development; D018517:Plant Roots / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D025341:Principal Component Analysis; D012989:Soil Pollutants / Q000032:analysis*; D045868:Sorghum / Q000201:enzymology* / Q000254:growth & development; D013302:Streptomyces / Q000378:metabolism*; D034421:Sus scrofa; D014131:Trace Elements / Q000032:analysis; D014934:Wood / Q000737:chemistry; D015032:Zinc / Q000032:analysis*
chemical_list: D000975:Antioxidants; D008372:Manure; D012989:Soil Pollutants; D014131:Trace Elements; C540010:biochar; D002606:Charcoal; D007854:Lead; D015032:Zinc