Effect of lead on phytotoxicity, growth, biochemical alterations and its role on genomic template stability in Sesbania grandiflora: A potential plant for phytoremediation

Malar, Srinivasan; Manikandan, R.; Favas, Paulo J.C.; Sahi, Shivendra V.; Venkatachalam, P.

doi:10.1016/j.ecoenv.2014.05.018

Cited by 105 publications

(27 citation statements)

References 44 publications

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“…Pb has no metabolic role in the growth of plants (Herbette et al 2006); however, various adverse effects, such as the inhibition of seed germination, chlorosis, and stunted plant growth, have been reported in Pb-stressed plants (Ghelich et al 2014;Jiang et al 2014). Adverse effects were also detected at the molecular level (Ghelich et al 2014;Jiang et al 2014;Malar et al 2014;Wang et al 2013) where they caused the homeostasis of the inner and outer environments of a cell to be broken, leading to cellular dysfunction (Sharma et al 2014;Xu et al 2014). Even a small amount of Pb can be toxic or lethal to plants (Islam et al 2008;Shu et al 2014).…”

Section: Introductionmentioning

confidence: 90%

Detoxification strategies and regulation of oxygen production and flowering of Platanus acerifolia under lead (Pb) stress by transcriptome analysis

Wang

Yang²,

Liu³

et al. 2015

Environ Sci Pollut Res

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Toxic metal pollution is a major environmental problem that has received wide attention. Platanus acerifolia (London plane tree) is an important greening tree species that can adapt to environmental pollution. The genetic basis and molecular mechanisms associated with the ability of P. acerifolia to respond lead (Pb) stress have not been reported so far. In this study, 16,246 unigenes differentially expressed unigenes that were obtained from P. acerifolia under Pb stress using next-generation sequencing. Essential pathways such as photosynthesis, and gibberellins and glutathione metabolism were enriched among the differentially expressed unigenes. Furthermore, many important unigenes, including antioxidant enzymes, plants chelate compounds, and metal transporters involved in defense and detoxification mechanisms, were differentially expressed in response to Pb stress. The unigenes encoding the oxygen-evolving enhancer Psb and OEE protein families were downregulated in Pb-stressed plants, implying that oxygen production might decrease in plants under Pb stress. The relationship between gibberellin and P. acerifolia flowering is also discussed. The information and new insights obtained in this study will contribute to further investigations into the molecular regulation mechanisms of Pb accumulation and tolerance in greening tree species.

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Section: Introductionmentioning

confidence: 90%

Detoxification strategies and regulation of oxygen production and flowering of Platanus acerifolia under lead (Pb) stress by transcriptome analysis

Wang

Yang²,

Liu³

et al. 2015

Environ Sci Pollut Res

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“…Although some of them are known to be as important signaling molecules that have the potential to modulate the activity of specific defense proteins. ROS are highly unstable and reactive molecules having a very short life (Wang et al, 2010) that can oxidize proteins, lipids, and nucleic acids leading to cell structure alteration and mutagenesis (Malar et al, 2014;Manikandan et al, 2015Manikandan et al, , 2016Venkatachalam et al, 2017). In photosynthetic organism's organelles like chloroplast, mitochondria, and peroxisomes are considered to be the centers of ROS production (Pinto et al, 2003;Pucciariello et al, 2012).…”

Section: Oxidative Stress and Rosmentioning

confidence: 99%

Agroecological Responses of Heavy Metal Pollution with Special Emphasis on Soil Health and Plant Performances

Srivastava

Sarkar

Singh

et al. 2017

Front. Environ. Sci.

287

100

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With modern day urbanization and industrialization, heavy metal (HM) contamination has become a prime concern for today's society. The impacts of metal contamination on agriculture range from the agricultural soil to the produce in our food basket. The heavy metals (HMs) and metalloids, including Cr, Mn, Co, Ni, Cu, Zn, Cd, Sn, Hg, Pb, among others, can result in significant toxic impacts. The intensification of agricultural land use and changes in farming practices along with technological advancement have led to heavy metal pollution in soil. Metals/metalloids concentrations in the soil are increasing at alarming rate and affect plant growth, food safety, and soil microflora. The biological and geological reorganization of heavy metal depends chiefly on green plants and their metabolism. Metal toxicity has direct effects to flora that forms an integral component of ecosystems. Altered biochemical, physiological, and metabolic processes are found in plants growing in regions of high metal pollution. However, metals like Cu, Mn, Co, Zn, and Cr are required in trace amounts by plants for their metabolic activities. The present review aims to catalog major published works related to heavy metal contamination in modern day agriculture, and draw a possible road map toward future research in this domain.

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“…The excessive amount of superoxide radical could lead to an interaction between the cell compound and the HMs so that it impairs the transmission of signals to the gene used for antioxidants. This interdiction can occur by replacing [27]; and 4) CAT activity under Pb stress in Sesbania grandiflora [28]. Overall, the present study's antioxidant enzymatic activities have shown an arc-shaped response to different levels of HMs in which antioxidant enzymes first increased at low concentrations of HM and then decreased with an excess of heavy metal.…”

Section: Determining Antioxidant Activitymentioning

confidence: 73%

HMs Induced Changes on Growth, Antioxidant Enzyme’s Activity, gas Exchange Parameters and Protein Structures in Sasa Kongosanensis f. Aureo – Striatus

Emamverdian¹,

Ding²

2017

Pol. J. Environ. Stud.

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Nowadays, the contaminations generated by anthropogenic activities have had damaging effects on the life cycle of plants, particularly on the plants living in the vicinity of urban areas that are more associated with the life of people. Bamboo, as a local plant, is one of the most widely used plants in China. So, a pot experiment was conducted to investigate the effects of three HMs (Cu, Pb, and Zn) in four different concentrations (0 (for control), 500 mg/kg, 1000 mg/kg, and 200 mg/kg), with complete randomized design (CRD) by five replications for each treatment to measure the antioxidant enzymes, lipid per oxidation (LP), soluble protein (SP), gas exchange parameters, and morphological indexes in Sasa kongosanensis f. aureostriatus. The results indicated that the antioxidant responses had an arc-shaped trend with various alterations in which POD and CAT first increase with low concentration of HMs (500 mg/kg) and then decrease with the increase of heavy metal (1000 mg/kg and 2000 mg/kg). Additionally, measuring of MDA content and soluble protein illustrated that MDA content and soluble protein increase with excess of HMs in different levels, and also the excess of HMs significantly decreases the photosynthesis properties. Moreover, the results obtained by morphological indices showed that low concentration of HMs increases both percentage of shoot length and percentage of emerge plants at all three kinds of HMs, but observe a downward trend with excess of heavy metal in 1000 mg/kg and 2000 mg/kg. Overall, in "Sasa kongosanensis f. aureo -striatus, results indicated that low concentration of HMs (500 mg/kg) can help the plant growth, while excess of HMs (1000-2000 mg/kg) alleviates the plant growth. On the other hand, Pb revealed the lowest antioxidant

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Effect of lead on phytotoxicity, growth, biochemical alterations and its role on genomic template stability in Sesbania grandiflora: A potential plant for phytoremediation

Cited by 105 publications

References 44 publications

Detoxification strategies and regulation of oxygen production and flowering of Platanus acerifolia under lead (Pb) stress by transcriptome analysis

Detoxification strategies and regulation of oxygen production and flowering of Platanus acerifolia under lead (Pb) stress by transcriptome analysis

Agroecological Responses of Heavy Metal Pollution with Special Emphasis on Soil Health and Plant Performances

HMs Induced Changes on Growth, Antioxidant Enzyme’s Activity, gas Exchange Parameters and Protein Structures in Sasa Kongosanensis f. Aureo – Striatus

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