Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth

Qadir, Sami Ullah; Raja, Vaseem; Siddiqui, Waseem Ahmad; Mahmooduzzafar,; Allah, Elsayed Fathi Abd; Alam, Pravej; Ahmad, Parvaiz

doi:10.3390/plants8120528

Cited by 25 publications

(6 citation statements)

References 74 publications

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“…The accumulation of ROS induced by stressful conditions can lead to nucleic acid injury, enzyme inhibition, and eventually, the death of cells in plants (Imran et al, 2021). The activities of antioxidant enzymes increases during detoxi cation in plants under stressful conditions (Hou et al, 2007;Qadir et al, 2019). Notably, SOD is considered the rst line of defense against ROS, as it decomposes O 2 •− to H 2 O 2 and O 2 .…”

Section: Discussionmentioning

confidence: 99%

Photosynthesis and stress response of coal fly ash on stem elongation in wheat

Wang,

Hu,

et al. 2024

Preprint

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Coal is one of the primary energy sources in China and is widely used for electricity generation. Crops growing in overlapped areas of farmland and coal resources (OAFCR) suffer from coal fly ash stress, especially during stem elongation, which is a key stage that impacts wheat yield and is sensitive to environmental stress. As a primary food crop of China, wheat is essential for food security. However, the characteristics of wheat under the combined stress of fly ash and various heavy metals have not been sufficiently investigated. In this study, we explored the response of stem elongation in wheat to different levels of coal fly ash stress and determined the content of heavy metals (HMs) in wheat leaves. We found that with an increase in fly ash content, the Cu content in the shoots increased, while that in the roots decreased. Coal fly ash exposure reduced the proportions of Pb and Zn in the cytoderm, and the proportion of Cu in the soluble constituents decreased from 58.3–45.7%. Total chlorophyll, chlorophyll a, and chlorophyll b levels decreased significantly, whereas peroxidase (POD) and catalase (CAT) activities generally increased with increasing fly ash dose. Meanwhile, chloroplasts, mitochondria, and their internal structures were damaged, and the cell structures of leaves, such as the internal membrane structure, were damaged.

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Section: Discussionmentioning

confidence: 99%

Photosynthesis and stress response of coal fly ash on stem elongation in wheat

Wang,

Hu,

et al. 2024

Preprint

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“…CL and after a 3-year restoration following further growth. Similarly,Qadir et al (2019) illustrate that Pithecellobium dulce can achieve good growth on FA-CL. It can induce FA-CL restoration due to an enhanced antioxidant mechanism against free radicals stress conditions.…”

mentioning

confidence: 87%

“…FA-CL containing heavy metals induces stress in leafy vegetables, and Singh et al (2008) have observed heavy metalsinduced stress in Beta vulgaris. Therefore, the IPS for restoring FA-CL should reflect climate adaptive and phytoremediation potential (Qadir et al, 2019). Gajic et al (2018) illustrated that phytoremediation potentials are based on four criteria: phytostabilization (P-S), phytoextraction (P-X), phytodegradation (P-D) and rhizo-degradation (R-D).…”

Section: Identifying the Potential Of Indigenous Plant Species And Understanding Local Demandsmentioning

confidence: 99%

Developing sustainable measures to restore fly‐ash contaminated lands: Current challenges and future prospects

Upadhyay

Edrisi

2021

Land Degrad Dev

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Land degradation is one of the major global environmental issues that need serious attention. The land itself is a complex system regulating myriads of processes. Any perturbation in these processes would undoubtedly lead to the stimulation of land degradation. Among these, fly-ash (FA) dumping is one of the usual practices, which has been adopted to overcome land-use disruption and other health hazards. However, this practice has become a driving factor for FA-induced land degradation.Therefore, in purview to tackle this issue, the present article aimed to identify and suggest sustainable practices to restore and manage FA-contaminated sites. As a preliminarily it deals with the systematic exploration and identification of FA-based and associated contaminated lands via geospatial technology with a brief focus on assessing its different contaminant profiles in the FA and soil systems. Further, this moreover, the article emphasizes the need to identify identifying the potential local plant species in the FA-contaminated regions that can meet the local people's demands. Following this we suggest appropriate sustainable approaches to expedite the restoration of FA-contaminated lands and highlight the critical bottlenecks during ground implementation. Our article aimed to unravel ways to address the aforementioned bottlenecks to develop an efficient restoration enterprise during the UN Decade on Ecosystem Restoration (2021Restoration ( -2030.

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“…In several studies, the response of antioxidants has been observed to compete against oxidative stress due to the overproduction of ROS. FA enriched with metals and metalloids like Fe, Ni, As, B, Se, Pb, Cr, Pb, Cu, and Cd are the alarms of toxicity, which not only pollute the environment but also result in oxidative stress with the production of ROS such as peroxide and superoxide radicals (Qadir et al, 2019). It creates oxidative stress by electron transfer and inhibition of metabolic reactions (Pandey et al, 2010).…”

Section: Antioxidant Responsesmentioning

confidence: 99%

Ecological restoration of fly‐ash disposal areas: Challenges and opportunities

2021

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Fly-ash (FA) is a by-product or residue that is produced during the combustion of coal for energy production in thermal power plants. The huge amount of FA generation is a global problem; and coal power generators still can find no safe and sustainable approach to FA disposal. FA dumps not only create air, water, and soil pollution but also pose a noxious impact on human health by introducing toxins in the food chain through biomagnification. A non-food vegetation cover can help to mitigate FA dump-related environmental health issues. However, alkaline pH, toxic metals, lack of soil microbes, and pozzolanic properties of FA limit plant growth. In this regard, ecological restoration of FA dumps through phytoremediation should be a holistic approach. This review focuses on the role of naturally occurring plants, tree plantation, and microbial inoculation in the ecological restoration of FA dumps and their role in the physicochemical changes of FA substrate. Application of organic material has been proved to help establish vegetation cover on FA dumps as they provide essential nutrients for plant and microbial growth. Morphological, physiological, and antioxidant responses of plants grown on FA dumps are also discussed in this study in detail. Overall, this review summarises the different comprehensive approaches of FA dump restoration and compiles ways to convert barren FA dumps into useful sites for deriving bioeconomy with phytoproducts. The outcomes of this study should be beneficial helping identify site-specific ecorestoration of FA dumps through an integrated approach.

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Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth

Cited by 25 publications

References 74 publications

Photosynthesis and stress response of coal fly ash on stem elongation in wheat

Photosynthesis and stress response of coal fly ash on stem elongation in wheat

Developing sustainable measures to restore fly‐ash contaminated lands: Current challenges and future prospects

Ecological restoration of fly‐ash disposal areas: Challenges and opportunities

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