Effect of iron on lipid peroxidation, and enzymatic and non-enzymatic antioxidants and bacoside-A content in medicinal plant Bacopa monnieri L.

Sinha, Sarita; Saxena, Ruchi

doi:10.1016/j.chemosphere.2005.07.030

Cited by 125 publications

(55 citation statements)

References 32 publications

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“…Although its role in plant osmotolerance remains controversial, proline is thought to contribute to osmotic adjustment, detoxification of reactive oxygen species and protection of membrane integrity. Excess metal induced the decrease in intracellular proline content in the study, suggesting osmosis of membranes was affected by stress caused by excess iron and copper, which agreed with the reports on other plants (Alia and Pardha, 1991;Bassi and Sharma, 1993;Sinha and Saxena, 2006;Sinha et al, 2009). …”

Section: Discussionsupporting

confidence: 91%

“…Our results showed that with the increasing metal concentration, the MDA content increased, which is similar to the effect of heavy metals on other higher plants (Sinha and Saxena, 2006;Singh et al, 2006;Zhang et al, 2007). Proline accumulates in a variety of plant species in response to stresses such as drought, salinity and extreme temperatures.…”

Section: Discussionsupporting

confidence: 79%

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Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Xing

Huang

Liu

2009

Environmental Toxicology

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To elucidate effect of chemical reagents addition on growth of aquatic plants in restoration of aquatic ecosystem, Spirodela polyrrhiza (L.) Schleid was used to evaluate its physiological responses to excess iron (Fe 31 ) and copper (Cu 21 ) in the study. Results showed that accumulation of iron and copper both reached maximum at 100 mg L 21 iron or copper after 24 h short-term stress, but excess iron and copper caused plants necrosis or death and colonies disintegration as well as roots abscission at excess metal concentrations except for 1 mg L 21 iron. Significant differences in chlorophyll fluorescence (Fv/Fm) were observed at 1-100 mg L 21 iron or copper. The synthesis of chlorophyll and protein as well as carbohydrate and the uptake of phosphate and nitrogen were inhibited seriously by excess iron and copper. Proline content decreased with increasing iron or copper concentration, however, MDA content increased with increasing iron or copper concentration. # 2009 Wiley Periodicals, Inc. Environ Toxicol 25: 103-112, 2010.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 79%

Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Xing

Huang

Liu

2009

Environmental Toxicology

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“…ROS generation in the exposed plants to some phytotoxins has been recently proposed as one of the modes of action for plant growth inhibition (Weir et al 2004). Our results in H 2 O 2 production are compatible with other phytotoxicity studies where it has been reported that phytotoxins and aqueous extracts of allelopathic plants may cause oxidative damage through the production of ROS and subsequent damage of cellular systems in target plants Sinha & Saxena 2006). The increase of ROS might be directly produced through acute damage of phytotoxins on cells of treated plants and they showed more sensitivity with increasing concentrations indicating that concentration of phytotoxins in ecosystem might be an important factor in demonstrating the allelopathic effects.…”

Section: Discussionsupporting

confidence: 81%

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Uddin

Robinson

Caridi

2013

Journal of Plant Interactions

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This study investigated the possible phytotoxicity induced by Phargmites australis on phenotypic and physiological parameters of recipient plants with identification of major inhibitors in the donor plant. This was achieved using aqueous extracts of different organs and root exudates of P. australis in laboratory and greenhouse experiments with Lactuca sativa as the model test plant. The observed reduced liquid imbibition and altered resource mobilization in seeds of L. sativa, in particular an insufficient carbohydrate supply, demonstrated that the onset of germination might be negatively affected by phytotoxicity. Dose-response studies pointed out that oxidative stress through reactive oxygen species production could potentially cause the observed germination and seedling growth reductions. The osmotic effects by mannitol solution on germination as well as growth and physiology at a level of (0.57 and (0.45 bar, respectively, demonstrated that the results from aqueous plant extracts were partially induced by the osmotic potential on and above those levels. Overall, the relative strength of inhibition on measured parameters was the highest in leaf extract, followed by rhizome, root, stem, and inflorescence. Root exudates of P. australis also had negative impacts by reducing germination and growth of plant. High-performance liquid chromatography (HPLC) analysis revealed gallic acid, a potent phytotoxin, as a major compound with an order of leaf ! inflorescence ! rhizome !root ! stem.

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“…Thus, LPI promotes free radical formation that culminates in the oxidation of biomolecules. Accordingly, iron overload in humans and in experimental animals is associated with oxidative stress (OS) [10] . Indeed, it is known that an imbalance in the oxidant/antioxidant status of the cell is associated with OS, leading to important cellular macromolecule modifications and cell damage [11] .…”

Section: Introductionmentioning

confidence: 99%

Oxidative stress and labile plasmatic iron in anemic patients following blood therapy

Fernandes

Rissi

Zuravski

et al. 2014

WJEM

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AIM:To determine the plasmatic iron content and evaluate the oxidative stress (OS) markers in subjects receiving blood therapy. METHODS:Thirty-nine individuals with unspecified anemia receiving blood transfusions and 15 healthy subjects were included in the study. Anemic subjects were divided into three subgrouP: (1) those that received up to five blood transfusions (n = 14); (2) those that received from five to ten transfusions (n = 11); and (3) those that received more than ten transfusions (n = 14). Blood samples were collected by venous arm puncture and stored in tubes containing heparin. The plasma and cells were separated by centrifugation and subsequently used for analyses. Statistical analyses were performed using Kruskal-Wallis analysis of variance followed by Dunn's multiple comparison tests when appropriate. RESULTS:The eletrophoretic hemoglobin profiles of the subjects included in this study indicated that no patients presented with hemoglobinopathy. Labile plasmatic iron, ferritin, protein carbonyl, thiobarbituric acidreactive substances (TBARS) and dichlorofluorescein diacetate oxidation were significantly higher (P < 0.05), whereas total thiol levels were significantly lower (P < 0.05) in transfused subjects compared to controls. Additionally, the activity of catalase, superoxide dismutase and glutathione peroxidase were significantly lower in the transfused subjects (P < 0.05). Antioxidant enzyme activities and total thiol levels were positively correlated (P < 0.05), and negatively correlated with the levels of protein carbonyl and TBARS (P < 0.05). In contrast, protein carbonyl and TBARS were positively correlated (P < 0.05). Altogether, these data confirm the involvement of OS in patients following therapy with repeated blood transfusions. CONCLUSION:Our data reveal that changes in OS markers are correlated with levels of labile plasmatic iron and ferritin and the number of transfusions.

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Effect of iron on lipid peroxidation, and enzymatic and non-enzymatic antioxidants and bacoside-A content in medicinal plant Bacopa monnieri L.

Cited by 125 publications

References 32 publications

Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Oxidative stress and labile plasmatic iron in anemic patients following blood therapy

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