Journal article
The potential of microbes and sulfate in reducing arsenic phytoaccumulation by maize (Zea mays L.) plants
Environmental Geochemistry and Health, Vol.43(12), pp.5037-5051
12/2021
PMID: 33811285
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Abstract
Arsenic (As) contamination in soil–plant system is an important environmental, agricultural and health issue globally. The microbe- and sulfate-mediated As cycling in soil–plant system may depend on soil sulfate levels, and it can be used as a potential strategy to reduce plant As uptake and improve plant growth. Here, we investigated the role of soil microbes (SMs) to examine As phytoaccumulation using maize as a test plant, under varying sulfate levels (S-0, S-5, S-25 mmol kg−1) and As stress. The addition of sulfate and SMs promoted maize plant growth and reduced As concentration in shoots compared to sulfate-treated plants without SMs. Results revealed that the SMs-S-5 treatment proved to be the most promising in reducing As uptake by 27% and 48% in root and shoot of the maize plants, respectively. The SMs-S treatments, primarily with S-5, enhanced plant growth, shoot dry biomass, Chl a, b and total Chl (a + b) contents, and gas exchange attributes of maize plants. Similarly, the antioxidant defense in maize plants was increased significantly in SMs-S-treated plants, notably with SMs-S-5 treatment. Overall, the SMs-S-5-treated plants possessed improved plant growth, dry biomass, physiology and antioxidant defense system and decrease in plant shoot As concentration. The outcomes of this study suggest that sulfate supplementation in soil along with SMs could assist in reducing As accumulation by maize plants, thus providing a sustainable and eco-friendly bioremediation strategy in limiting As exposure.
Details
- Title
- The potential of microbes and sulfate in reducing arsenic phytoaccumulation by maize (Zea mays L.) plants
- Creators
- Natasha - COMSATS University IslamabadIrshad Bibi - University of Agriculture FaisalabadKhalid Hussain - University of Agriculture FaisalabadRabia Amen - University of Agriculture FaisalabadIsrar Masood Ul Hasan - University of Agriculture FaisalabadMuhammad Shahid - COMSATS University IslamabadSafdar Bashir - Ghazi UniversityNabeel Khan Niazi - University of Agriculture FaisalabadTariq Mehmood - Hohai UniversityHafiz Naeem Asghar - University of Agriculture FaisalabadMuhammad Farrakh Nawaz - University of Agriculture FaisalabadMuhammad Mahroz Hussain - University of Agriculture FaisalabadWaqar Ali - Chinese Academy of Sciences
- Publication Details
- Environmental Geochemistry and Health, Vol.43(12), pp.5037-5051
- Publisher
- Springer Netherlands
- Grant note
- HEC/6425/2016 / Higher Education Commission, Pakistan HEC/6396/2016 / Higher Education Commission, Pakistan 18-268 RG/EAS/AS_C / The World Academy of Sciences
- Identifiers
- 991012951096802368
- Copyright
- © The Author(s), under exclusive licence to Springer Nature B.V. 2021
- Academic Unit
- Faculty of Science and Engineering; School of Environment, Science and Engineering; Science
- Language
- English
- Resource Type
- Journal article