Toxicity of arsenic (As) on seed germination of sunflower (Helianthus annuus L.)

Imran, Muhammad; Nawaz, Muhammad Qaisar; Khan, Rass Masood; Ali, Zulfıqar; Mahmood, Tariq

doi:10.5897/ijps2013.3894

Cited by 36 publications

(4 citation statements)

References 23 publications

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“…This indicates that even since the early phenological stages, the AsV might limit the ability of the seedling to grow as adult plants. Similar reductions in the development of plumules and the leaf area have been reported in both species monocotyledonous as Triticum aestivum [34], Oryza sativa [35,36] and dicotyledonous as Cucumis sativus [37], Lepidium sativum [38], Acacia auriculiformis [39], Helianthus annum [40]. In the case of the root length, significant reductions were found at low AsV concentrations, but in the cultivar Alina the roots .…”

Section: Discussion Of Resultssupporting

confidence: 71%

Response of Barley Seedlings to the Toxicity by Arsenic V

Mireles-Arriaga¹,

Saldaña‐Robles²,

Hernández-Ruíz³

et al. 2021

Pol. J. Environ. Stud.

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Due to its geological origin and the intense agro-industrial activity, regions whose vocation is the agri-food production present a high level of contamination by heavy metals as the arsenic that induces toxicity in the crops of economic importance as in the case of barley (Hordeum vulgare L.). The evaluation of the response of different cultivars and genotypes in the first phenological stages is indispensable to generate technical information regard the tolerance to arsenic and the same time theoretical knowledge about how this metal is absorbed. The aim of this study was to evaluate the physiological response of barley seedlings to arsenic V (AsV) toxicity and deduce how this metal could be absorbed by the plants. Seedlings of the cultivars Alina and Esperanza were evaluated under the concentrations of 100, 200, 500 and 700 mg L -1 . Besides, models for the proteins PHT1 and HvHMA1 were performed by homology with affinity assays for AsV. The seedlings of Alina presented higher degree of tolerance to the toxicity whereby potentially the productive plots of this cultivar Alina could tolerate higher concentrations of this heavy metal. Also, the AsV could be transported by its competence with the endogenous ions as Mg 2 + and PO4 3-.

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Section: Discussion Of Resultssupporting

confidence: 71%

Response of Barley Seedlings to the Toxicity by Arsenic V

Mireles-Arriaga¹,

Saldaña‐Robles²,

Hernández-Ruíz³

et al. 2021

Pol. J. Environ. Stud.

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“…In another study elaborated by Zhang et al [16], it was found that seed germination and wheat seedling growth are inhibited due to the high concentration of As. Similarly, Muhammad et al [17] reported a reduction in the length of roots of Helianthus annuus L. when was exposed to As concentration.…”

Section: Behavior Of Plants In Presence Of Metalsmentioning

confidence: 84%

“…There can be several causes that prevent seed germination and plant growth, so metal ions can affect the activation of essential enzymes that are needed in the germination process. Metals such as Cd, Cu and Pb have been shown to inhibit the activities of these enzymes [17]. A seed is considered germinated when it is over 2 mm long [22,24,25].…”

Section: Phase III Radicle Elongationmentioning

confidence: 99%

Untitled

2021

AnnalsARSciPhysChem

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Rapid industrialization along with the use of modern practices in agriculture led to the discharge into the environment of various pollutants from which metals and metalloids are the most identified. The presence of metals in soil affects soil fertility, the growth and development of plants, and finally causing different negative effects on human health such respiratory problems, damage to endocrine and nervous systems and other dysfunction. Over time, various techniques have been used to remove pollutants from contaminated media, but most of these techniques are expensive, produce secondary contaminants and modify the structure and fertility of the soil. Thus, in recent years considerable attention has been accorded to biological methods. Plants and microorganisms may exhibit different behavior and degree of tolerance in the presence of metals.

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“…Elemental mercury is oxidized to the divalent inorganic cation in the lungs and red blood cells. Absorbed divalent cation from exposure to mercuric mercury compounds can, in turn, be reduced to the metallic or monovalent form and released as exhaled elemental mercury vapor (Muhammad A et al, 2013& Singh AP et al, 2017. Elemental mercury vapors enter rapidly in the bloodstream when inhaled.…”

Section: Introductionmentioning

confidence: 99%

Ecological Risk Assessment of Inorganic Arsenic and Mercuric Fungicides Through Biological Tools

Sikandar

Mohsin

Malik

2023

IJIAS

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This review discusses the use, mode of action, biomarkers, and bioindicators of inorganic arsenic and mercuric fungicides, as well as their effects on the environment and human health. The most prevalent indicator of exposure to arsenic is the measurement of total arsenic in urine. Biomarkers of exposure for arsenic and inorganic fungicides incudes the analysis of hair, urine, blooda and nails. Bio indicators are species or group of species that are used to indicate adverse effect of contamination. Freshwater fish species act as a very good bio indicator for inorganic arsenic. Tree bark, rice fields and sea birds could be a valuable indicator of inorganic arsenic contamination. Black Piranha, fish and earthworms are an ideal bio indicator of inorganic mercury. Inorganic arsenic compounds are known to be highly carcinogenic and toxic compounds. Mercuric fungicide is very toxic when inhaled by humans or animals it causes severe health issues and when absorbed by plants it retards their growth. To estimate the daily dose of arsenic exposure to humans through absorption, ingestion and other pathways, Average daily dose is implemented by using two equations from the US EPA. To determine the ecological risk assessment a simplified equation was proposed by FDA i.e. HQ = E/RfD. Overall, the review emphasizes the need for heightened awareness, regulation, and alternative approaches to fungicide use, with a focus on minimizing the use of inorganic arsenic and mercuric fungicides to safeguard the environment and promote sustainable agricultural practices.

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Toxicity of arsenic (As) on seed germination of sunflower (Helianthus annuus L.)

Cited by 36 publications

References 23 publications

Response of Barley Seedlings to the Toxicity by Arsenic V

Response of Barley Seedlings to the Toxicity by Arsenic V

Untitled

Ecological Risk Assessment of Inorganic Arsenic and Mercuric Fungicides Through Biological Tools

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