Next Article in Journal
Investigation of Indigenous Arbuscular Mycorrhizal Performance Using a Lotus japonicus Mycorrhizal Mutant
Next Article in Special Issue
Selenium Enhances Cadmium Accumulation Capability in Two Mustard Family Species—Brassica napus and B. juncea
Previous Article in Journal
Micropropagation, Genetic Fidelity and Phenolic Compound Production of Rheum rhabarbarum L.
Previous Article in Special Issue
Bamboo Plantations for Phytoremediation of Pig Slurry: Plant Response and Nutrient Uptake
Open AccessArticle

Phytoremediation Potential, Photosynthetic and Antioxidant Response to Arsenic-Induced Stress of Dactylis glomerata L. Sown on Fly Ash Deposits

1
Department of Ecology, Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
2
Department of Plant Ecology and Phytogeography, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
*
Author to whom correspondence should be addressed.
Plants 2020, 9(5), 657; https://doi.org/10.3390/plants9050657
Received: 28 February 2020 / Revised: 13 April 2020 / Accepted: 16 May 2020 / Published: 22 May 2020
Arsenic (As) from coal fly ash can be released into soil/groundwater, presenting a global threat to the environment and human health. To overcome this environmental problem, phytoremediation represents an urgent need, providing ‘green’ cleanup of contaminated lands. The present study focused on As concentrations in fly ash and plants, evaluation of phytoremediation potential of Dactylis glomerata sown on fly ash deposits together with its photosynthetic activity, and oxidative and antioxidative response to As stress. Field research was carried out on fly ash deposits at the thermal power plant “Nikola Tesla”, Obrenovac (TENT-A, Serbia) and the control site. Fly ash is characterized by alkaline pH reactions, small amounts of organic matter, a large amount of available phosphate, and total and available As concentrations. Results in this study indicate that phosphate application can ameliorate As toxicity, uptake and root-shoot transport. Furthermore, D. glomerata can be considered as good As phytostabilizator, because it retains more As in roots than in leaves. Excess As in leaves decreases photosynthetic efficiency (Fv/Fm) and concentrations of chlorophylls, carotenoids, and anthocyanins, whereas high content of malondialdehyde (MDA) can be a signal for biosynthesis phenolics and ascorbic acid, providing cellular redox homeostasis and recovery of photosystem II (PSII) photochemistry. In the roots, low oxidative stress under high concentrations of As is related to intense antioxidant biosynthesis. Taken together, the results in this study indicate a high adaptive potential of D. glomerata to As stress. These findings may suggest that physiological and metabolic tools can be used as a way forward in the ‘real field’ scenario, phytomanagement of fly ash and ecosystem services providing sustainable phytoremediation of As-contaminated sites around the globe. View Full-Text
Keywords: Arsenic; fly ash; Dactylis glomerata; phytoremediation; photosynthesis; metabolites; oxidative stress; adaptation Arsenic; fly ash; Dactylis glomerata; phytoremediation; photosynthesis; metabolites; oxidative stress; adaptation
Show Figures

Figure 1

MDPI and ACS Style

Gajić, G.; Djurdjević, L.; Kostić, O.; Jarić, S.; Stevanović, B.; Mitrović, M.; Pavlović, P. Phytoremediation Potential, Photosynthetic and Antioxidant Response to Arsenic-Induced Stress of Dactylis glomerata L. Sown on Fly Ash Deposits. Plants 2020, 9, 657.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop