Journal article
Plant growth promotion and enhanced uptake of Cd by combinatorial application of Bacillus pumilus and EDTA on Zea mays L.
International Journal of Phytoremediation, Vol.22(13), pp.1372-1384
09/11/2020
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Abstract
In developing countries, Cd contamination is ubiquitous which limits agriculture productivity. The current study was designed to investigate the efficacy of plant—Bacillus pumilus—ethylene diamine tetraacetic acid (EDTA) and plant-microbe-chelator (PMC) synergy for enhanced plant growth and Cd-uptake potential of Zea mays in industrially contaminated and cadmium (Cd) spiked soil. A pot experiment was conducted by growing Z. mays seedlings either inoculated with B. pumilus or un-inoculated along with the application of 5 mM EDTA. Plants were exposed to two levels of Cd contamination for 45 days. An increase in Cd uptake was observed in Z. mays inoculated with B. pumilus followed by EDTA treatment as compared to non-inoculated and un-treated ones. Zea mays showed improved values with PMC approach for different growth parameters including root length (41%), shoot length (40%), fresh weight (59%), dry weight (49%), chlorophyll contents (49%), and relative water contents (30%). Higher tolerance index (117%) was observed for plants grown in soil spiked with 300 mg kg−1 Cd (S2). PMC application markedly enhanced Cd uptake potential of Z. mays up to 12% and 68.8%, respectively, in S1 and S2 soil. While the PMC application increased Cd accumulation capacity of Z. mays by 71.2% and 52.5% in S1 and S2 soil. The calculated bioaccumulation and translocation factor revealed that Z. mays possess Cd uptake potential, and this ability can be significantly enhanced with PMC application.
Details
- Title
- Plant growth promotion and enhanced uptake of Cd by combinatorial application of Bacillus pumilus and EDTA on Zea mays L.
- Creators
- Kashif Hayat - Shanghai Jiao Tong UniversitySaiqa Menhas - Shanghai Jiao Tong UniversityJochen Bundschuh - School of Civil Engineering and Surveying, University of Southern QueenslandPei Zhou - Key Laboratory of Urban Agriculture, School of Agriculture and Biology, Shanghai Jiao Tong UniversityNabeel Khan Niazi - University of Southern QueenslandAmna - Faculty of Biological Sciences, Department of Plant Sciences, Quaid-i-Azam UniversityAmjad Hussain - Quaid-i-Azam UniversitySikandar Hayat - College of Natural Resources and Environment, Northwest A&F UniversityHazrat Ali - Green & Environmental Chemistry, Ecotoxicology and Ecology Laboratory, Department of Zoology, University of MalakandJuncai Wang - Key Laboratory of Urban Agriculture, School of Agriculture and Biology, Shanghai Jiao Tong UniversityAmir Abdullah Khan - Shanghai Jiao Tong UniversityAmjad Ali - College of Natural Resources and Environment, Northwest A&F UniversityFarooq Hussain Munis - Faculty of Biological Sciences, Department of Plant Sciences, Quaid-i-Azam UniversityHassan Javed Chaudhary - Faculty of Biological Sciences, Department of Plant Sciences, Quaid-i-Azam University
- Publication Details
- International Journal of Phytoremediation, Vol.22(13), pp.1372-1384
- Publisher
- Taylor & Francis Inc.
- Identifiers
- 991012951198002368
- Copyright
- © 2020 Taylor & Francis Group, LLC
- Academic Unit
- Faculty of Science and Engineering; School of Environment, Science and Engineering
- Language
- English
- Resource Type
- Journal article