Modifications of photochemical efficiency, cellular viability and total phenolic content of<i>Prosopis glandulosa</i>leaves exposed to copper

Michel-López, Claudia Yared; González-Mendoza, Daniel; Ruíz-Sánchez, Esaú; Zamora-Bustillos, Roberto

doi:10.1080/02757540.2013.851194

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Excess Cu causes alterations in photochemical efficiency, cellular viability and total phenolic content of Prosopis glandulosa leaves. [14] Activities of enzymes associated with N metabolism are altered during Cu stress in Luffa cylindrica, enabling the plant to monitor and adapt to changes in its N status and supply, thus minimising the harmful effects of the stress. [15] Absence of nitrate in the culture solution decreases Cu uptake while amounts of free amino acids and phenolic metabolites are strongly accumulated in Matricaria chamomilla.…”

Section: Introductionmentioning

confidence: 99%

Variation in trace element mobility and nitrogen metabolism ofVerbascum olympicum Boiss. under copper stress

Guleryuz

Erdemir

Arslan

et al. 2015

Chemistry and Ecology

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The aim of this study was to evaluate the effects of copper (Cu) stress on accumulation and transport of trace elements, nitrogen assimilation, and growth parameters of Verbascum olympicum. Eight-week-old seedlings were grown in Hoagland's solution and exposed to 0, 50, 250, or 500 µM CuSO 4 for seven days in laboratory conditions. Bioaccumulation of trace elements (boron, bismuth, cobalt, Cu, iron, lithium, manganese, molybdenum, nickel, lead, zinc) in the roots and leaves was determined by inductively coupled plasma-mass spectrometry after one, three, and seven days. Chlorophyll content, nitrate reductase, and glutamine synthetase activities, soluble protein content, and biomass were determined. Copper accumulated in the roots and leaves (up to 19609.8 and 256.2 mg kg −1 dry weight, respectively). Other trace elements accumulated to higher levels in the roots of Cu-treated plants compared with those of control plants. High Cu concentrations decreased nitrogen-assimilatory enzyme activities. Compared with control plants, those treated with high Cu concentrations showed lower chlorophyll contents, total protein contents, and biomass. Nitrogen assimilation and growth parameters of V. olympicum were negatively affected by Cu treatment but mineral nutrition was not severely disrupted. The results support the suitability of V. olympicum as a candidate for phytoremediation of Cu-contaminated soils.

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Section: Introductionmentioning

confidence: 99%

Variation in trace element mobility and nitrogen metabolism ofVerbascum olympicum Boiss. under copper stress

Guleryuz

Erdemir

Arslan

et al. 2015

Chemistry and Ecology

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“…The few previous studies of P. juliflora have focused mainly on the evaluation of ability of these plants to germinate in different copper concentrations (Victor et al, 2007). However, previous studies using P. juliflora foliar disc have demonstrated that the uptake of copper in excess by plants can initiate a disorder of numerous physiological functions causing damage at the cellular level (Michel-López et al, 2014). Therefore a better understanding of the strategies that are used by individuals of P. juliflora for copper tolerance will help researchers to develop biotechnological alternatives as the phytoremediation in northwest of Mexico.…”

Section: Bioacumulación Y Cambios En Aparato Fotosintético De Prosopimentioning

confidence: 99%

Bioaccumulation and changes in the photosynthetic apparatus of Prosopis juliflora exposed to copper

et al. 2016

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The effect of copper toxicity on the photosynthetic activities and bioaccumulation in different tissues of Prosopis juliflora was investigated using three CuSO 4 concentrations (10, 50 and 100 mM) added under hydroponic conditions. Copper concentration and chlorophyll fluorescence were measured after 48 h of copper stress. The results obtained in this study show that increasing levels of 50 and 100 mM Cu 2+ resulted in a significant accumulation of this metal mainly in roots compared with control roots. On the other hand, our result showed a significant reduction of maximum photochemical efficiency of photosystem II (Fv/Fm) and the activity of photosystem II (F v /F 0 ) ratios in P. juliflora leaf treated with 100 mM Cu 2+ with respect to control after 4h of exposure. These changes suggested that the photosynthetic apparatus of P. juliflora was the primary target of the Cu 2+ action. Therefore the information provided by this short-term (48 h) experiment in P. juliflora showed that several physiological processes are activated, in which the copper uptake by roots and their accumulation in tissues play a central role. In conclusion, the chlorophyll fluorescence parameters can be used as a useful physiological tool to assess early changes in photosynthetic performance of P. juliflora in response to copper pollution in short-term. Finally, the present study showed that P. juliflora is a promising prospect for heavy metals phytoremediation purposes occurring in arid and semi-arid climates in the northwest Mexico.

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Bioaccumulation and effect of cadmium in the photosynthetic apparatus of Prosopis juliflora

Michel-López

Gil²,

Ortiz³

et al. 2016

Chemical Speciation & Bioavailability

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Modifications of photochemical efficiency, cellular viability and total phenolic content ofProsopis glandulosaleaves exposed to copper

Cited by 3 publications

References 14 publications

Variation in trace element mobility and nitrogen metabolism ofVerbascum olympicum Boiss. under copper stress

Variation in trace element mobility and nitrogen metabolism ofVerbascum olympicum Boiss. under copper stress

Bioaccumulation and changes in the photosynthetic apparatus of Prosopis juliflora exposed to copper

Bioaccumulation and effect of cadmium in the photosynthetic apparatus of Prosopis juliflora

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