Field study of the effects of excess copper on wheat photosynthesis and productivity

Moustakas, Michael; Ouzounidou, Georgia; Symeonidis, L.; Karataglis, S.

doi:10.1080/00380768.1997.10414780

Cited by 55 publications

(28 citation statements)

References 34 publications

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“…On the other hand, it has also been reported that soil metal stress did not influence WUE although reducing growth. For example in the study of Maustakas et al (1997), aluminium toxicity reduced transpiration and net CO 2 assimilation to a similar extent in Thiopyrum bessarabicum. Becerril et al (1989) found that different metals may have different effects on transpiration and growth in the same plant: At similar leaf metal concentrations, Pb caused a drastic reduction of water use efficiency, while Cd inhibited transpiration and carbon assimilation to a similar degree and thus did not change WUE.…”

Section: Discussionmentioning

confidence: 88%

“…Water use efficiency decreased in the metal treatments as expected and in agreement with findings of other studies. Maustakas et al (1997) found that wheat plants grown on Cu-rich soil exhibited considerable less water use efficiency than plants grown on fertile soil. A copper-induced decrease of water use efficiency was also observed in solution-cultured pea plants (Angelov et al 1993).…”

Section: Discussionmentioning

confidence: 98%

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Effects of heavy metal soil pollution and acid rain on growth and water use efficiency of a young model forest ecosystem

et al. 2007

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In a 4-year lysimeter experiment, we investigated the effects of topsoil heavy metal pollution (3,000 mg kg −1 Zn, 640 mg kg −1 Cu, 90 mg kg −1 Pb and 10 mg kg −1 Cd) and (synthetic) acid rain (pH 3.5) on tree growth and water use efficiency of young forest ecosystems consisting of Norway spruce (Picea abies), willow (Salix viminalis), poplar (Populus tremula) and birch (Betula pendula) trees and a variety of understorey plants. The treatments were applied in a Latin square factorial design (contaminated vs uncontaminated topsoil, acidified rain vs ambient rain) to 16 open-top chambers, with 4 replicates each. Each opentop chamber contained two lysimeters, one with a calcareous, and the other with acidic subsoil. The four tree species responded quite differently to heavy metal pollution and type of subsoil. The fine root mass, which was only sampled at the end of the experiment in 2003, was significantly reduced by heavy metal pollution in P. abies, P. tremula and B. pendula, but not in S. viminalis. The metal treatment responses of above-ground biomass and leaf area varied between years. In 2002, the heavy metal treatment reduced above-ground biomass and leaf area in P. tremula, but not in the other species. In 2003, metals did not reduce above-ground growth in P. tremula, but did so in the other species. It appears that the responses in aboveground biomass and leaf area, which paralleled each other, were related to changes in the relative competitive strength of the various species in the two experimental years. S. viminalis gained relative to P. tremula in absence of metal stress, in particular on calcareous subsoil, while P. abies showed the largest increases in growth rates in all treatments. Above-and below-ground growth was strongly inhibited by acidic subsoil in S. viminalis and to a lesser degree also in P. abies. In P. abies, this subsoil effect was enhanced by metal stress. Acid rain was not found to have any substantial effect. Whole-system water use efficiency was reduced by metal stress and higher on calcareous than on acidic subsoil.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 98%

Effects of heavy metal soil pollution and acid rain on growth and water use efficiency of a young model forest ecosystem

et al. 2007

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“…Synthetic was generated via a wide cross of the diploid Aegilops tauschii (DD genome) with the tetraploid wheat Altar 84 (AABB genome). The population contains 114 RILs, which were mapped with 332 RFLP markers, on average 15.8 marker for each chromosome (Nelson et al 1995a,b,c, Marino et al 1996.…”

Section: Methodsmentioning

confidence: 99%

“…The toxic effect of the excess copper is often studied (recently, e.g., Ilias 2005, Agrawal andSarma 2006), however, there is a little information about the genetic background of the copper tolerance in the economically important plants. The cereals are sensitive to the high soil copper concentration: the phytotoxic effect could result in reduced fertility and in yield loss of field-cultivated wheat (Moustakas et al 1997). Selection of more resistant genotypes could provide gene sources for breeding Cu-tolerant wheat, and tolerant cultivars, which can accumulate high concentration of Cu in their shoots, could be directly used for the extraction of the metals from the polluted soils.…”

Section: Introductionmentioning

confidence: 99%

Mapping of QTLs affecting copper tolerance and the Cu, Fe, Mn and Zn contents in the shoots of wheat seedlings

Bálint¹,

Röder²,

Hell³

et al. 2007

Biologia plant.

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Quantitative trait loci (QTLs) for Cu-tolerance were determined in wheat grown in control and Cu-treated soil in greenhouse. In addition, loci having an influence on the shoot Cu-, Fe-, Mn-and Zn-contents under non-stressed and Cu-stressed environments were mapped. One major QTL for Cu-tolerance was found on chromosome 5DL, while slighter effects were determined on the chromosomes 1AL, 2DS, 4AL, 5BL and 7DS. QTLs affecting the shoot Mn-and Zn-contents were found on the chromosomes 3BL and 3AL, respectively. The centromeric region on the chromosome 3B plays a role in the regulation of the shoot Fe-contents in the stressed plants. Under Cu-stress QTL affecting shoot Cu-content was found on chromosome 1BL, while on the chromosome 5AL a QTL influencing the Cu-accumulation ability of wheat from Cu-polluted soil was determined.Additional key words: micronutrients, phytoremediation, shoot heavy metal content, Triticum aestivum L.

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“…However, before visible changes take place in the plants, at lower concentrations of the element, they respond to environmental stress by synthesizing ethylene (Abeles et al 1992;Hyudo 1991;Rodriguez et al 1999). Cell processes take place, including a change in enzyme activities (Van Assche and Clijsters 1990; Chen et al 2000;Cuypers et al 2002), changes in the photosynthesis (Ciscato et al 1996;Moustakas et al 1997) and of chloroplast pigments (Mocquot et al 1996).…”

Section: Introductionmentioning

confidence: 97%

Excess copper in soil as a factor affecting bacterial spots caused by Xanthomonas vesicatoria in tomato plants; bio-interaction between two stress factors and their influence on plants

2008

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The investigations presented in this paper focus on studying the influence of excess soil copper levels in young tomato plants and their relationship to bacterial spot severity caused by Xanthomonas vesicatoria race T3. The plants were grown under greenhouse conditions in pots containing soil artificially contaminated with copper in concentrations of 250 and 400 mg kg -1 . Both stress factors were applied individually and in combination. Soil copper levels did influence bacterial spot severity. The copper doses applied restricted bacterial spot growth. Strongest responses were observed when the pathogen was infiltrated into seeds. Deformations of plant, as well as increased plastid synthesis inhibition occurred when the plants were exposed to copper and X. vesicatoria. The applicability of the investigation is related to the fight against bacterial spot caused by X. vesicatoria in tomatoes grown on copperpolluted soils. In this case, the remedial action should be carried out very carefully in order to avoid additional damage to plants.

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Field study of the effects of excess copper on wheat photosynthesis and productivity

Cited by 55 publications

References 34 publications

Effects of heavy metal soil pollution and acid rain on growth and water use efficiency of a young model forest ecosystem

Effects of heavy metal soil pollution and acid rain on growth and water use efficiency of a young model forest ecosystem

Mapping of QTLs affecting copper tolerance and the Cu, Fe, Mn and Zn contents in the shoots of wheat seedlings

Excess copper in soil as a factor affecting bacterial spots caused by Xanthomonas vesicatoria in tomato plants; bio-interaction between two stress factors and their influence on plants

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