Effect of heavy metals Co2+, Ni2+ and Cd2+ on growth and metabolism of cabbage

Pandey, Nalini; Sharma, Chandra P.

doi:10.1016/s0168-9452(02)00210-8

Cited by 424 publications

(251 citation statements)

References 29 publications

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“…A decrease was observed in catalase activity under Cd stress in the present study. Similar declines in catalase activity were reported under under Cd stress in rice, cabbage, bean, carrot, radish and pea (Chaoui et al 1997, Sandalio et al 2001, Shah et al 2001, Pandey and Sharma 2002. However, unlike our study, increased catalase activity was also observed in sunflower cotyledons and barley (Patra andPanda 1998, Gallego et al 1999) under Cd stress.…”

Section: Discussionsupporting

confidence: 82%

Physiological responses of maize to elemental sulphur and cadmium stress

Cui¹,

Wang²

2006

Plant Soil Environ.

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The physiological response to application of elemental sulphur (S) and cadmium (Cd) of maize (Zea mays L.) grown for 60 days in pot soil was studied. The S was added into the soil with 2 rates (0 and 50 mmol/kg) and Cd was added in solution in 4 rates (0, 20, 50, 100 mg/kg). All the S and Cd were added before planting. Shoot biomass decreased with the application of Cd to the soil whether S was applied or not. The application of S and Cd to soil led to an increasing accumulation of Cd in the shoots of maize. The concentration of chlorophyll was reduced significantly in Cd-treated plants with or without supplementary S. The content of malondialdehyde (MDA) was increased significantly in treatments with S and Cd, compared to the control. The activity of peroxidases (POD) was increased but catalase (CAT) was decreased in plants treated with Cd, again with or without S, in comparison with control. POD and CAT activities decreased in all the Cd treated plants with S, as compared to the plants without S. The results suggest that Cd reduces the crop growth, concentration of chlorophyll and activity of CAT, but increases the content of MDA and activity of POD. S supplies decrease the content of MDA, activities of POD and CAT, as compared to zero S supplies at the same rate of Cd application.

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Section: Discussionsupporting

confidence: 82%

Physiological responses of maize to elemental sulphur and cadmium stress

Cui¹,

Wang²

2006

Plant Soil Environ.

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“…In contrast to metal excluders whose strategy is to control the uptake of metals into the root and prevent metal translocation to aerial organs, hyperaccumulators accumulate metals in the shoot to levels toxic to most other plants (Baker, 1981;Baker and Brooks, 1989;Baker et al, 2000;Pollard et al, 2002;Krämer, 2010;Rascio and Navari-Izzo, 2011). This is remarkable as the photosynthetic apparatus is one of the major targets of metal phytotoxicity, typically resulting in severe symptoms such as chlorosis and necrosis, wilting, abnormal development and reduced growth (Pandey and Sharma, 2002;Rahman et al, 2005;Marschner and Marschner, 2012). These toxic effects are a product of numerous harmful interactions at the cellular level (Haydon and Cobbett, 2007), including nonspecific binding of metals to enzyme functional groups and displacement of other metals from their binding sites, generation of reactive oxygen species by redox-active metals that can lead to disruption of the electrontransport chain (Qadir et al, 2004), lipid peroxidation and subsequent impairment of membrane integrity (Pandolfini et al, 1992;Ros et al, 1992;Gonnelli et al, 2001;Haydon and Cobbett, 2007;Krämer, 2010;Hanikenne and Nouet, 2011).…”

Section: Metal Hyperaccumulation In Plantsmentioning

confidence: 99%

Evolution of nickel hyperaccumulation and serpentine adaptation in the Alyssum serpyllifolium species complex

et al. 2016

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Metal hyperaccumulation is an uncommon but highly distinctive adaptation found in certain plants that can grow on metalliferous soils. Here we review what is known about evolution of metal hyperaccumulation in plants and describe a population-genetic analysis of the Alyssum serpyllifolium (Brassicaceae) species complex that includes populations of nickelhyperaccumulating as well as non-accumulating plants growing on serpentine (S) and non-serpentine (NS) soils, respectively. To test whether the S and NS populations belong to the same or separate closely related species, we analysed genetic variation within and between four S and four NS populations from across the Iberian peninsula. Based on microsatellites, genetic variation was similar in S and NS populations (average H o = 0.48). The populations were significantly differentiated from each other (overall F ST = 0.23), and the degree of differentiation between S and NS populations was similar to that within these two groups. However, high S versus NS differentiation was observed in DNA polymorphism of two genes putatively involved in adaptation to serpentine environments, IREG1 and NRAMP4, whereas no such differentiation was found in a gene (ASIL1) not expected to play a specific role in ecological adaptation in A. serpyllifolium. These results indicate that S and NS populations belong to the same species and that nickel hyperaccumulation in A. serpyllifolium appears to represent a case of adaptation to growth on serpentine soils. Further functional and evolutionary genetic work in this system has the potential to significantly advance our understanding of the evolution of metal hyperaccumulation in plants.

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“…Decrease of phosphorus content in investigated willows exposed to elevated concentrations of Cd and Ni determined in leaves, was in specific relation to genotype, with only few exceptions. Decrease of phosphorus in plants influenced by heavy metals is usually expected (12,13,17). However, some researchers report an increase in P content in plants influenced by Cd and Ni, depending on the plant species and ecological conditions (16,25).…”

Section: Resultsmentioning

confidence: 99%