Effects of different treatments of fly ash and mining soil on growth and antioxidant protection of Indian wild rice

Abstract

The aim of the present study was investigation of the effects of fly ash and mining soil on growth and antioxidant protection of two cultivars of Indian wild rice (Oryza nivara and Oryza rufipogon) for possible phytoremediation and restoration of metal-contaminated site. In this study, Indian wild rice showed significant changes in germination, growth, and biochemical parameters after exposure to different ratio of fly ash and mining soil with garden soil. There was significant reduction of germination, fresh weight, dry weight, leaf chlorophyll content, leaf area, Special Analysis Device Chlorophyll (SPAD) Index, proteins, and activities of antioxidant enzymes in both cultivars of the wild rice grown in 100% fly ash and mining soil compared to the plants grown in 100% garden soil. Results from this study showed that in both cultivars of wild rice, all growth and antioxidant parameters increased when grown in 50% fly ash and mining soil. Taken together, Indian wild rice has the capacity to tolerate 50% of fly ash and mining soil, and can be considered as a good candidate for possible phytoremediation of contaminated soils.

Physiological response of metal tolerance and detoxification in castor (Ricinus communis L.) under fly ash-amended soil

“…The levels of Zn and Cu in garden soil were in normal range and Mn level was very low ( Kabat Pendias, 2011 ). The results were consistent with the reported value in different fly ash deposits by Bisoi et al. (2017) , Gajić et al.…”

“…Phytoremedial potential of plants can be measured through its elevated antioxidative potential with increased capacity to scavenge reactive oxygen species (ROS) ( Nadgórska-Socha et al., 2013 ). Therefore, the plant antioxidant defence system may be important to reveal its tolerance mechanisms to different metals present in contaminated soil ( Bisoi et al., 2017 ). However, relatively few reports have been published on the oxidative metabolism in higher plants under fly ash including Castor ( Bisoi et al., 2017 ; Nadgórska-Socha et al., 2013 ).…”

“…Therefore, the plant antioxidant defence system may be important to reveal its tolerance mechanisms to different metals present in contaminated soil ( Bisoi et al., 2017 ). However, relatively few reports have been published on the oxidative metabolism in higher plants under fly ash including Castor ( Bisoi et al., 2017 ; Nadgórska-Socha et al., 2013 ). Thus, the study aims to: a) assess the growth and photosynthesis in R. communis under fly ash amendments; b) evaluating the metal accumulation potential of R. communis under different levels of fly ash; c) assessing the adaptive physiological response of R. communis under different levels of fly ash and d) find out suitable levels of fly ash in soil amendments for better phytoremediation.…”

Effects of Fly Ash Amended Soil on Biochemical Attributes and Antioxidant Responses of Medicinally Potent Plant Calendula Officinalis

“…Results indicated that low FA application in soil did not trigger oxidative stress whereas higher level of metals in FA amended soil causes disturbance in the cell membrane, cell disruption, interrupt various metabolic processes and causes inhibition in plant growth . Plant tolerance to heavy metal stress is directly associated with an upsurge in antioxidant enzymes to detoxify reactive oxygen species (Bisoi et al 2017). This elevation in enzymatic activity might be due to the plant defense against ROS species generated by metal ions present in FA.…”

Influence of Coal Fly-Ash on Soil Properties and Productivity of Chickpea Crop in Semi-Arid Region of Bundelkhand

“…Various heavy metals namely Cu, Ni, Fe, Pb, Cr, Cd etc that may exhibit metal toxicity in plants. Fly ash utilization in soil systems has been tested so far for Brassica juncea, Helianthus annus [Pandey et al, 1994], Cassia siamea [Tripathi et al, 2005], Triticum aestivum [Kumar et al, 2010], rice [Bisoi et al, 2017]. The presence of nutrients allows the use of fly ash for agricultural purposes to fortify crops with nutrients, such as Se, Fe, and Zn.…”