Heavy Metal Induced Oxidative Damage in Terrestrial Plants

Shaw, Birendra Prasad; Sahu, Sobhan Kumar; Mishra, Rajani Kanta

doi:10.1007/978-3-662-07743-6_4

Cited by 104 publications

(54 citation statements)

References 97 publications

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“…•-leads to the formation of highly reactive hydroxyl radical ( • OH) causing peroxidative damage of biomolecules (Shaw et al 2004, Kim et al 2005. Hence, it is a requirement for plants to keep content of both H 2 O 2 and O 2…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

“…The antioxidative enzymes like superoxide dismutase (SOD), ascorbate peroxidase (APX) and catalase (CAT) play the key role in removal of reactive oxygen species (ROS) produced in plant cells as byproducts of normal cell metabolism or as a result of disturbance in the cell metabolic processes under abiotic stresses (Shaw et al 2004). Their activity, particularly of CAT and SOD, gets accelerated in plants facing abiotic stresses (Rout and Shaw 2001a, Mutlu et al 2009, Sahu and Shaw 2009a.…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

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Response of antioxidant enzymes to high NaCl concentration in different salt-tolerant plants

Mallik¹,

Nayak²,

Sahu³

et al. 2011

Biologia plant.

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The effects of NaCl on the H 2 O 2 content and the activities of catalase (CAT) and superoxide dismutase (SOD) were studied in diverse group of plants, such as a unicellular alga, Chlorella sp., an aquatic macrophyte, Najas graminea, and a mangrove plant, Suaeda maritima, all showing high tolerance to NaCl. Significant accumulation of H 2 O 2 was observed in all the tested plants upon their exposure to 255 mM NaCl. The activity of both CAT and SOD increased significantly in response to the NaCl treatment. Growing the plants in presence of 255 mM NaCl also resulted in the synthesis of new isoforms of both CAT and SOD.

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Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Response of antioxidant enzymes to high NaCl concentration in different salt-tolerant plants

Mallik¹,

Nayak²,

Sahu³

et al. 2011

Biologia plant.

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“…Plants grown on soils with parent material rich in heavy metals or polluted by industrial effluents are known to absorb heavy metals in quantities that may be toxic to plant growth and metabolism (Alloway, 1990;Prasad, 2004). Excess of heavy metals cause phytotoxic effects in several ways, one of these being the excessive production of reactive oxygen species (ROS) which disturb the cellular redox environment causing oxidative stress (Erdei et al, 2002;Shaw et al, 2004;Nada et al, 2007). While it is well established that the ROS are a major factor contributing to heavy metal toxicity (Gratão et al, 2005), there is little information on their comparative effectiveness in producing the toxic effects involving oxidative damage and effect on the antioxidant system.…”

Section: Introductionmentioning

confidence: 99%

Heavy metals, Co, Ni, Cu, Zn and Cd, produce oxidative damage and evoke differential antioxidant responses in spinach

Pandey

Pathak

Pandey³

et al. 2009

Braz. J. Plant Physiol.

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Exposure of 10-d-old spinach (Spinacea oleracea L.) plants to excess (500 µM) concentrations of Co, Ni, Cu, Zn and Cd in sand culture inhibited growth, induced toxicity symptoms, oxidative damage and changes in the antioxidant defense system. The severity of the metal-induced effects varied with the metals and the duration of exposure to excess supply of the metals. Each metal induced chlorosis. In addition, excess Co, Ni and Cd also produced metal specific toxic effects. Excess supply of each metal caused lipid peroxidation (TBARS). Their effectiveness in producing oxidative damage was in the order: Ni > Co > Cd > Cu >Zn. Of all the metals, Ni was also most effective in lowering the concentration of the chloroplast pigments (Chl, Car). While each metal increased the concentration of ascorbate and activated the key enzymes of the ascorbate-glutathione cycle, excess Cd and Zn were more effective in this regard. Each metal increased the activity of SOD and POD and decreased the activity of CAT. Enhancement in SOD activity and inhibition of CAT activity suggested high build-up of H 2 O 2 , possibly the main cause of oxidative stress, induced in response to excess supply of the heavy metals.

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“…We found no difference in the lipid peroxidation and AsA content of plants subjected to frost treatment and controls, presumably because the test we used (-12°C) was not cold enough to cause serious damage to plants. Lipid peroxidation reactions lead to loss of membrane stability, and can be stopped if the plant has sufficient levels of antioxidants (Blokhina et al 2003;Briat 2002;Shaw et al 2004). AsA is well known to play an important role in the prevention of oxidative stress (Foyer 1993;Smirnoff 1998Smirnoff , 2000.…”

Section: Discussionmentioning

confidence: 99%

Autumn fertilization with nitrogen improves nutritional status, cold hardiness and the oxidative stress response of Holm oak (Quercus ilex ssp. ballota [Desf.] Samp) nursery seedlings

Andivia

Márquez-García

Vázquez‐Piqué

et al. 2011

Trees

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Autumn fertilization with nitrogen improves nutritional status, cold hardiness and the oxidative stress response of Holm oak (Quercus ilex ssp. ballota [Desf.] Samp) nursery seedlings Abstract Holm oak (Quercus ilex ssp. ballota [Desf.] Samp) is one of the most important species in forest communities of the western Mediterranean Basin, but is very vulnerable to environmental stress during the first years of its life. In particular, summer drought and winter frosts limit the distribution, survival, and growth of Holm oak. These two stress factors can lead to plasmolysis and/or oxidative stress. We hypothesized that autumn fertilization with nitrogen (N) can improve plant tolerance to these abiotic stress factors and improve plant quality and therefore reforestation success. A 12-week autumn application of 30 or 60 mg N (plus 70 mg N applied to both treatments during the previous 28 weeks in the nursery, i.e. 100 and 130 mg N in total, respectively) improved overall growth, root growth capacity, frost tolerance, and nutritional status of plants relative to plants given 0.0 and 1.5 mg autumnal N, and had no negative effect on seedling response to water stress. A very small increment in N doses during the autumn (1.5 vs. 0.0 mg N) improved some morphological parameters, such as stem diameter (D) and shoot dry weight, and physiological parameters, such as total antioxidant activity. The highest autumnal N dose (60 mg) increased leaf nutrient content without decreasing the concentration, but had a tendency to reduce frost tolerance relative to seedlings given a lower autumnal N dose (30 mg).

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Heavy Metal Induced Oxidative Damage in Terrestrial Plants

Cited by 104 publications

References 97 publications

Response of antioxidant enzymes to high NaCl concentration in different salt-tolerant plants

Response of antioxidant enzymes to high NaCl concentration in different salt-tolerant plants

Heavy metals, Co, Ni, Cu, Zn and Cd, produce oxidative damage and evoke differential antioxidant responses in spinach

Autumn fertilization with nitrogen improves nutritional status, cold hardiness and the oxidative stress response of Holm oak (Quercus ilex ssp. ballota [Desf.] Samp) nursery seedlings

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