Ultrastructural deformation of plant cell under heavy metal stress in Gram seedlings

Dey, Uttiya; Mondal, N. K.

doi:10.1080/23311843.2016.1196472

Cited by 28 publications

(17 citation statements)

References 51 publications

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“…A reduction in biomass and plant yield is caused by the stunted growth of shoot and leaf, which might be due to the toxic effects of Cr(VI) on photosynthesis and it might be partially due to a reduced transport of water and nutrients from soil caused by reduced root growth in presence of Cr(VI) [22,28]. Reduced root growth might be due to tissue collapse resulting from the inhibition of proliferation and elongation of root consequently result in incapability of the roots to absorb water and nutrients from the medium [9,30].…”

Section: Discussionmentioning

confidence: 99%

Effect of Hexavalent Chromium [Cr(VI)] on Phytoremediation Potential and Biochemical Response of Hybrid Napier Grass with and without EDTA Application

Ram

Han

Yang

et al. 2019

Plants

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Hexavalent chromium [Cr(VI)] contamination has become an emergent concern in China. Previous field investigations have found that hybrid Napier grass is widely distributed in Cr(VI) contaminated areas. This study investigated the phytoremediation potential and biochemical response of hybrid Napier grass (Pennisetum americanus L. × Pennisetum purpureum Schumach) grown in soil contaminated with Cr(VI) (0, 20, 40, and 60 mg kg−1) with and without Ethylene diamine tetra acetic acid (EDTA) (4 mM) application. The results indicated that root length, shoot height, dry weight, leaf area, chlorophyll, and photosystem II (PSII) parameters viz.; apparent electron transport rate (ETR), effective quantum yield of PSII (ΦPSⅡ), maximal PSII photochemical efficiency (Fv/Fm), potential activity of PSII (Fv/Fo), photochemical quenching (qP), and non-photochemical quenching (qN) decreased with the increasing Cr(VI) concentration. EDTA application further aggravated reduction of dry biomass and photosystem II. The concentration and the accumulation of Cr in shoot and root, and both the bioaccumulation factor (BAF) and transfer factor (TF) increased with increasing Cr(VI) concentrations and further enhanced with EDTA application. Though the Cr(VI) and Ethylene diamine tetra acetic acid (EDTA) stress reduced tolerance, but, even at highest Cr(VI) concentration, plant could exhibited strong resistance, as evidenced by increase in superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities. Hybrid Napier grass, due to its BAF > 1 and a TF < 1, would be applicable for Cr phytostabilization. Moreover, limiting metal transport to aerial parts of plant would prevent animal’s ingestion, restrict soil mobility, and consequently reduce transmission across the food chain.

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Section: Discussionmentioning

confidence: 99%

Effect of Hexavalent Chromium [Cr(VI)] on Phytoremediation Potential and Biochemical Response of Hybrid Napier Grass with and without EDTA Application

Ram

Han

Yang

et al. 2019

Plants

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“…Plant response to Cr depends on its concentration and the species in which it is present in the soil [ 40 ]. Symptoms of Cr toxicity in plants mainly include water balance disorders, root damage and biomass reduction [ 41 ]. Moreover, the visible effects of high contents of Cr include chlorosis and accelerated plant wilting.…”

Section: Resultsmentioning

confidence: 99%

Successful Outcome of Phytostabilization in Cr(VI) Contaminated Soils Amended with Alkalizing Additives

Radziemska

Bęś

Gusiatin

et al. 2020

IJERPH

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This study analysed the effect of three alkalizing soil amendments (limestone, dolomite chalcedonite) on aided phytostabilization with Festuca rubra L. depending on the hexavalent chromium (Cr(VI)) level in contaminated soil. Four different levels of Cr(VI) were added to the soil (0, 50, 100 and 150 mg/kg). The Cr contents in the plant roots and above-ground parts and the soil (total and extracted Cr by 0.01 M CaCl2) were determined with flame atomic absorption spectrometry. The phytotoxicity of the soil was also determined. Soil amended with chalcedonite significantly increased F. rubra biomass. Chalcedonite and limestone favored a considerable accumulation of Cr in the roots. The application of dolomite and limestone to soil contaminated with Cr(VI) contributed to a significant increase in pH values and was found to be the most effective in reducing total Cr and CaCl2-extracted Cr contents from the soil. F. rubra in combination with a chalcedonite amendment appears to be a promising solution for phytostabilization of Cr(VI)-contaminated areas. The use of this model can contribute to reducing human exposure to Cr(VI) and its associated health risks.

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“…Proline content is a significant stress indicator, thus it could be suggested that heavy metals (Pb) tolerance of Carum carvi was manifested via the activated proline accumulation in the different organs. The accumulation of proline in response to heavy metals of many plants was also recorded by other investigators under laboratory conditions (Tripathi & Gaur, 2004;Odjegba &Fasid, 2006 andDey &Mondal, 2016).…”

Section: Al 2016)mentioning

confidence: 98%

“…Among metal contaminants, lead (Pb) is a major concern because of its extensive distribution in the environment and the substantial environmental and human health problems it can cause (Dey & Mondal, 2016).…”

Section: Introductionmentioning

confidence: 99%

Physiological Studies on the Interactive Effects of Lead and Antioxidants on Carum carvi Plant

et al. 2017

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A N EXPERIMENT was conducted to assess the responses of Carum carvi to lead stress and using ascorbic acid and α tochopherol as antioxidants. In this experiment, plants were grown in the nutrient medium with different levels of lead (0, 50, 100,200,500 and 1000 mM) in the form of lead nitrate Pb(NO 3 ) 2 .Ascorbic acid or α tochopherol level (each 50 ppm) was used as seed presoaked for 8 h.The interactiveeffects were recorded on plant biomass, biosynthesis of photosynthetic pigments, proline, oil contents and flavonidsin Carum carvi plant. From our present results, itcouldbe concluded thatseed presoaked applications of ascorbic acid orα tocopherol could play a role to alleviate the harmful effect of lead stress on some metabolic and physiological processes of Carum carvi that reflected in, increasing fresh-dry matter of different organs, inducing a significant stimulatory effect of carotenoid contents, increasing oil, proline and flavonoid contents.

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Ultrastructural deformation of plant cell under heavy metal stress in Gram seedlings

Cited by 28 publications

References 51 publications

Effect of Hexavalent Chromium [Cr(VI)] on Phytoremediation Potential and Biochemical Response of Hybrid Napier Grass with and without EDTA Application

Effect of Hexavalent Chromium [Cr(VI)] on Phytoremediation Potential and Biochemical Response of Hybrid Napier Grass with and without EDTA Application

Successful Outcome of Phytostabilization in Cr(VI) Contaminated Soils Amended with Alkalizing Additives

Physiological Studies on the Interactive Effects of Lead and Antioxidants on Carum carvi Plant

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