S-Fertilizer (Elemental Sulfur) Improves the Phytoextraction of Cadmium through Solanum nigrum L.

Abstract

Soil contamination with toxic heavy metals [such as cadmium (Cd)] is becoming a serious global problem due to the rapid development of the social economy. This study was carried out to assess the beneficial role of two different kinds of (S)-fertilizer in the phytoremediation of Cd contaminated soil through Solanum nigrum L. Gypsum (Gyp) and Elemental sulfur (ES) was applied alone and in combination with different ratios (0, 100:0, 0:100, 50:50 mg kg−1) accompanied by different Cd levels (0, 25, 50 mg kg−1). After seventy days of sowing, plants were harvested for determination of growth, physiological characteristics, oxidants and antioxidants, along with Cd uptake from different parts of the plant. Cd toxicity significantly inhibited growth, physiology and plant defence systems, and also increased Cd uptake in the roots and shoots of Solanum nigrum L. The application of Gyp 100 mg kg−1 boosted plant growth and physiology along with oxidants and antioxidants activity as compared to ES 100 mg kg−1 alone, and combine application of GYP+ES 50 + 50 mg kg−1. The application of ES 100 mg kg−1 showed an effective approach to decreasing Cd uptake as compared to Gyp 100 mg kg−1. Overall results showed that the combined application of GYP+ES 50 + 50 mg kg−1 significantly enhanced the phytoremediation potential of S. nigrum in Cd contaminated soil. Thus, it is highly recommended to apply the combined application of GYP+ES for phytoremediation of Cd contaminated soil.

Impact of Plantago ovata Forsk leaf extract on morpho-physio-biochemical attributes, ions uptake and drought resistance of wheat (Triticum aestivum L.) seedlings

“…Oxidation of photosynthetic pigments, membrane lipids, proteins, and nucleic acids are the crucial reasons of plant damage, which occur due to the drought-induced high ROS production leading to the modification of cellular redox status ( Saleem et al, 2019a , b , 2020f ; Kamal et al, 2022 ). Low water levels in the soil cause ultra-structural alterations, oxidative stress in plants and increased EL, MDA concentrations, whereas induced alterations in antioxidant enzyme activities are such as SOD, POD, CAT, and APX ( Imran et al, 2019 ; Kamran et al, 2019 ; Alatawi et al, 2022 ; Azeem et al, 2022 ; Naveed et al, 2022 ). As reported by Taha et al (2020) antioxidants, such as ascorbic acids and glutathione contents, additional ROS may be scavenged and therefore increased plant tolerance against harsh conditions may be achieved.…”

Influence of the near roadsoil contamination on the germination and biochemical factors of two species in the region of Sfax (Tunisia)

“…Plants have long been used to remediate soils contaminated by heavy metals which are pollutants of natural and anthropogenic origin. (Govarthanan et al, 2019;Javed et al, 2021;Ahmad et al, 2020;Alatawi et al, 2022). The negative impact of these metals on the environment due to their non-biodegradable nature, their long biological half-lives ranging from 10 to 3,000 years, and their potential for accumulation in different parts of the body (Han 2007).…”