Journal article
Microbe-EDTA mediated approach in the phytoremediation of lead-contaminated soils using maize (Zea mays L.) plants
International Journal of Phytoremediation, Vol.23(6), pp.585-596
12/05/2021
PMID: 33166474
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Source: InCites
Abstract
In the current study, we investigated the potential of Cronobacter sakazakii- ethylenediaminetetraacetic acid (EDTA) assisted phytoremediation potential of Zea mays L. to remediate lead (Pb)-contaminated soils. The C. sakazakii exhibited various stress tolerance mechanisms via plant growth promoting (PGP) traits, intrinsic extracellular enzyme production and antibiotic resistance. A greenhouse experiment was conducted to examine the dual effects of plant growth promoting endophytic bacteria (PGPEB)-chelator synergy in maize plants under different Pb contaminated soil regimes. C. sakazaii-EDTA (5 mM EDTA kg−1) complex significantly (p < 0.05) enhanced plant growth and biomass (48.91%); chlorophyll a, b and carotenoid contents (27.26%, 25.02% and 42.09%); relative water content (61.33%); proline content (63.60%); root and shoot Pb accumulation capacity (52.31% and 44.71%) in Pb contaminated soils. This may suggest the efficacy of current approach in enhancing plant tolerance capability toward Pb-uptake and phytoremediation capacity. Moreover, maize plants showed differential response to Pb availability in soil-1 (S1; Pb spiked soil, 500 mg kg−1) and soil-2 (S2; aged-contaminated soil) under various treatments. We describe the intriguing role of C. sakazakii-EDTA-maize system for Pb decontamination which can be used as a base line to explore the proposed combinatorial approach for long-term trails under field conditions for reclamation of Pb-contaminated soils.
Details
- Title
- Microbe-EDTA mediated approach in the phytoremediation of lead-contaminated soils using maize (Zea mays L.) plants
- Creators
- Saiqa Menhas - Shanghai Jiao Tong UniversityKashif Hayat - Shanghai Jiao Tong UniversityNabeel Khan Niazi - University of Agriculture FaisalabadPei Zhou - Shanghai Jiao Tong UniversityAmna - Quaid-i-Azam UniversityJochen Bundschuh - University of Southern QueenslandMuhammad Naeem - Islamia University of BahawalpurMuhammad Farooq Hussain Munis - Islamia University of BahawalpurXijia Yang - Shanghai Jiao Tong UniversityHassan Javed Chaudhary - Quaid-i-Azam University
- Publication Details
- International Journal of Phytoremediation, Vol.23(6), pp.585-596
- Publisher
- Taylor & Francis Inc.
- Identifiers
- 991012951199702368
- Copyright
- © 2020 Taylor & Francis Group, LLC
- Academic Unit
- School of Environment, Science and Engineering; Science; Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article