Responses of maize (Zea mays L.) plants to copper stress—I. Growth, mineral content and ultrastructure of roots

Ouzounidou, Georgia; Čiamporová, Milada; Moustakas, Michael; Karataglis, S.

doi:10.1016/0098-8472(94)00049-b

Cited by 189 publications

(84 citation statements)

References 27 publications

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“…It is a commonly observed phenomenon that plants can restrict heavy metal translocation from roots to shoots. In the present work roots usually showed higher Cu concentrations than shoots and the role of the roots may be very important in acting as a site for metal deposition and inactivation (Ouzounidou et al, 1995). As for the increase in root-to-shoot ratio with Cu addition, it is possible that a more rapid increase in the biomass of roots than of shoots may be one strategy leading to increased tolerance to Cu in E. splendens.…”

Section: Cu Uptake By Elsholtzia Plantsmentioning

confidence: 90%

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Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture

Gao-yi

Wang

et al. 2005

Environment International

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The effects of copper (Cu) on the yield and Cu uptake of three ecotypes of Elsholtzia splendens and one of Elsholtzia argyi were studied using solution culture. Three Cu concentrations were compared: 0.31 (control), 50 and 100 Amol L . In contrast, plants from all three populations of E. splendens showed high Cu tolerance and substantial shoot Cu accumulation of 58 -144 mg kg À 1 . Shoot Cu concentrations were about 16 -27 times higher than root Cu concentrations. Root-to-shoot ratio of the E. argyi ecotype was halved when Cu was supplied at a level of 100 mg L À 1 compared to the control (0.31 mg L À 1 ) but the ratio increased by 6 -47% in the three E. splendens ecotypes. The increase in root-to-shoot ratio in E. splendens may be a mechanism by which the plants can tolerate high Cu concentrations. There were few differences in morphology among the three E. splendens ecotypes in response to added Cu. The results are discussed in relation to the possible use of E. splendens as a pioneer species in the phytostabilization of Cu-contaminated soils. D

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Section: Cu Uptake By Elsholtzia Plantsmentioning

confidence: 90%

“…It is a component of several enzymes, including some that participate in electron flow and catalysis of redox reactions in plant cells (Ouzounidou et al, 1995). However, excessive Cu can lead to inhibition of root elongation and damage to root epidermal cells and root cell membranes (Lin et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture

Gao-yi

Wang

et al. 2005

Environment International

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“…Biomass reduction due to Cu 2þ excess is a common feature in most plant species [1,48,76]. Cu 2þ excess applied at a moderate concentration (2.5 mM) reduces more drastically the root biomass than the shoot biomass, which is related to the very large proportion of the absorbed Cu retained in the roots (Table 1).…”

Section: Effect Of Cu 2þ Excess On Plant Growth and Mineral Statusmentioning

confidence: 99%

Response to copper excess in Arabidopsis thaliana: Impact on the root system architecture, hormone distribution, lignin accumulation and mineral profile

Lequeux

Hermans

Lutts

et al. 2010

Plant Physiology and Biochemistry

343

196

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“…Ultrastructural alterations in leaves and roots promoted by excess Cu have been reported in broad beans (Kasim, 2005), maize (Ouzounidou et al, 1995) and oregano (PanouFiltheou and Bosabalidis, 2004), as has the response to oxidative stress in these organs (Srivastava et al 2006;Mashhadi-Akbar-Boojar 2011). However, the literature contains little information on such Cu-induced ultrastructural alterations, the microlocalisation of Cu, or the anti-oxidative response to Cu in root nodules.…”

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confidence: 99%

Copper microlocalisation, ultrastructural alterations and antioxidant responses in the nodules of white lupin and soybean plants grown under conditions of copper excess

Sánchez-Pardo

Fernández‐Pascual

Zornoza

2012

Environmental and Experimental Botany

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Esta es la versión de autor del artículo publicado en:This is an author produced version of a paper published in: sensitive to Cu excess than those of soybean, with the nodulation process, N 2 fixation, and the ultrastructure of bacteroids more strongly affected. A less effective antioxidative stress response against Cu was also seen in white lupin than in soybean nodules: the excess copper treatment induced a smaller increase in the total thiol content and ascorbate peroxidase activity in white lupin nodules than in soybean nodules, and promoted a greater reduction in catalase activity.

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Responses of maize (Zea mays L.) plants to copper stress—I. Growth, mineral content and ultrastructure of roots

Cited by 189 publications

References 27 publications

Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture

Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture

Response to copper excess in Arabidopsis thaliana: Impact on the root system architecture, hormone distribution, lignin accumulation and mineral profile

Copper microlocalisation, ultrastructural alterations and antioxidant responses in the nodules of white lupin and soybean plants grown under conditions of copper excess

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