Effect of Pb toxicity on leaf growth, physiology and ultrastructure in the two ecotypes of Elsholtzia argyi

Islam, Ejazul; Liú, Dan; Li, Tingqiang; Yang, Xiaoe; Jin, Xin; Mahmood, Qaisar; Tian, Shengke; Li, Junying

doi:10.1016/j.jhazmat.2007.10.121

Cited by 253 publications

(105 citation statements)

References 42 publications

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“…This result is in agreement with a number of papers showing Pb-induced inhibition of photosynthesis accompanied by stomatal closure (Ahmad et al, 2008;Islam et al, 2008;Kosobryukhov et al, 2004;Li et al, 2012). Unlike photosynthesis, the decrease in the chlorophyll content in Plantago leaves in response to Pb treatment was not observed in the present work.…”

Section: Discussionsupporting

confidence: 94%

“…Pb-induced inhibition of photosynthesis of plant seedlings was shown to be accompanied with stomatal closure and a lowered transpiration rate, especially at higher levels of Pb (Islam et al, 2008). According to Ahmad et al (2008) and Islam et al (2008), there is a strong relationship between Pb application and a decrease in plant photosynthesis, which is believed to be a result of stomatal closure. The net photosynthetic rate in the leaves of rice Oryza sativa L. was significantly inhibited by Pb treatments with a simultaneous decrease in stomatal conductance and transpiration rate (Li et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Usually Pb is accumulated in plant roots in much higher concentrations than in stems and, especially in leaves (Islam et al, 2008;Sharma and Dubey, 2005;Xiong, 1997). However, in the red beet, field pumpkin, chicory, common bean, white cabbage, and parsnip, the maximum Pb content was found in leaves (Sêkara et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Photosynthesis is adversely affected by Pb, mostly due to the metal-induced reductions of the concentration of photosynthetic pigments (Mishra et al, 2006), inhibition of the electron transport chain (Gajic et al, 2009), and changes in the chloroplast structure and stomatal status (Islam et al, 2008). Pb-induced inhibition of photosynthesis of plant seedlings was shown to be accompanied with stomatal closure and a lowered transpiration rate, especially at higher levels of Pb (Islam et al, 2008). According to Ahmad et al (2008) and Islam et al (2008), there is a strong relationship between Pb application and a decrease in plant photosynthesis, which is believed to be a result of stomatal closure.…”

Section: Introductionmentioning

confidence: 99%

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Effect of temperature on oxidative stress induced by lead in the leaves of Plantago major L.

Balakhnina

Borkowska

Nosalewicz

et al. 2016

International Agrophysics

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A b s t r a c t. Fluctuation of the summer day-time temperatures in the mid-latitudes in a range from 16 to 30 o C should not have irreversible negative effects on plants, but may influence metabolic processes including the oxidative stress. To test the effect of moderately high temperature on oxidative stress induced by lead in the leaves of Plantago major L.; the plants were incubated in a water solution of 0, 150, 450, and 900 µM Pb(NO 3 ) 2 at 20 and 28 o C. Plant reactions were evaluated by the content of thiobarbituric acid reactive substances and ascorbate peroxidase and glutathione reductase activities in leaves after 2, 24, 48, and 72 h. The Pb concentration in the leaves rose with the increase in the Pb content and was higher at 20 o C. The increase in stomatal resistance caused by Pb was higher at 28 o C. The contents of TBARS increased after 2 h of plant exposure to Pb and the increase was the highest at 900 µM Pb, 28 o C. The AsP activity increased up to 50% after 24 h of Pb-treatment at 28 o C; the highest increase in glutathione reductase activity was observed after 72 h at 20 o C. Thus, the moderately high temperature 28 o C compared with optimal 20 o C caused a decrease in Pb accumulation in Plantago leaves but amplified the negative effects of lead, especially in the beginning of stress development.K e y w o r d s: ascorbate peroxidase, glutathione reductase, lead, heat stress, oxidative destruction, Plantago major L.

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Section: Discussionsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of temperature on oxidative stress induced by lead in the leaves of Plantago major L.

Balakhnina

Borkowska

Nosalewicz

et al. 2016

International Agrophysics

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“…Under conditions of oxidative stress, increased concentrations of H 2 O 2 and other ROS are observed, leading to lipid peroxidation, which results from the attack of the hydrogens in fatty acid chains and the consequent formation of lipid radicals and aldehydes (Apel and Hirt 2004). Lipid peroxidation, estimated by the MDA concentration, is an important parameter for assessing cell damage because of the toxic effects of heavy metals (Islam et al 2008;Yang et al 2011). In this study, the leaf blades exposed to direct insolation exhibited higher lipid peroxidation.…”

Section: Biochemical Parameters In Leaf Bladesmentioning

confidence: 99%

Copper uptake, accumulation and physiological changes in adult grapevines in response to excess copper in soil

et al. 2013

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Aims This study investigated Cu uptake and accumulation as well as physiological and biochemical changes in grapevines grown in soils containing excess Cu. Methods The grapevines were collected during two productive cycles from three vineyards with increasing concentrations of Cu in the soil and at various growth stages, before and after the application of Cu-based fungicides. The Cu concentrations in the grapevine organs and the macronutrients and biochemical parameters in the leaf blades were analyzed.Results At close to the flowering stage of the grapevines, the concentration and content of Cu in the leaves were increased. However, the Cu concentrations in the roots, stem, shoots and bunches did not correlate with the metal concentrations in the soil. The application of Cu-based fungicides to the leaves increased the Cu concentrations in the shoots, leaves and rachis; however, the effect of the fungicides on the Cu concentration in the berries was not significant. The biochemical analyses of the leaf blades demonstrated symptoms of oxidative stress that correlated with the Cu concentrations in soil. Conclusions The increased availability of Cu in soil had a slight effect on the levels and accumulation of Cu in mature grapevines during the productive season and did not alter the nutritional status of the plant. However, increased Cu concentrations were observed in the leaves. The evidence of oxidative stress in the leaves correlated with the increased levels of Cu in soil.

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Differential proteome analysis of the leaves of lead hyperaccumulator, Rhoeo discolor (L. Her.) Hance

et al. 2020

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The present study investigated Rhoeo discolor (L. Her.) Hance for its ability to accumulate Pb, which is of relevance to phytoremediation applications. Based on this analysis, plants were found to accumulate greater than 10 mg/g (0.1%) of dry weight Pb in the shoots, which classifies the plant a Pb hyperaccumulator. Further, changes in the leaf proteome profiles in response to Pb stress were investigated. Wild-type plants were subjected to a high concentration of Pb(NO 3 ) 2 , and the levels of Pb that accumulated in different plant tissues were determined using atomic absorption spectrophotometry. Using 2D-difference gel electrophoresis, 181 protein spots were detected to be differentially abundant in response to Pb stress and selected spots exhibiting the strongest differential abundance suggested an impairment of the photosynthetic apparatus of the plant under Pb stress. Subsequently, a more extensive, proteome wide analysis utilizing label-free quantitation further identified a predominant decrease in protein levels and a significant effect on the nuclear proteome, as well as photosynthesis, carbon fixation and metabolism, providing insight into the Pb tolerance of this system in a potential phytoremediation context.

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Effect of Pb toxicity on leaf growth, physiology and ultrastructure in the two ecotypes of Elsholtzia argyi

Cited by 253 publications

References 42 publications

Effect of temperature on oxidative stress induced by lead in the leaves of Plantago major L.

Effect of temperature on oxidative stress induced by lead in the leaves of Plantago major L.

Copper uptake, accumulation and physiological changes in adult grapevines in response to excess copper in soil

Differential proteome analysis of the leaves of lead hyperaccumulator, Rhoeo discolor (L. Her.) Hance

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