Effects of copper on growth and on photosynthesis of mature and expanding leaves in cucumber plants

Vinit-Dunand, Florence; Epron, Daniel; Alaoui-Sossé, Badr; Badot, Pierre‐Marie

doi:10.1016/s0168-9452(02)00060-2

Cited by 155 publications

(56 citation statements)

References 42 publications

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“…The photosynthesis in the leaves exhibited age-dependent susceptibility to Cu, i.e. young leaves were less sensitive to Cu than mature ones (Vinit-Dunand et al 2002). Furthermore, the level of JA was also age-dependent, i.e.…”

Section: Discussionmentioning

confidence: 99%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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Phaseolus coccineus plants in the early growth stage were preincubated with 10 -5 M methyl jasmonate (MJ) for 1 or 24 h and subsequently transferred to a Hoagland solution or treated with 50 or 100 lM copper (Cu). After 6-day exposure to the metal, plant growth, relative water content, electrolyte leakage, the content of Cu and photosynthetic pigments, and chlorophyll fluorescence parameters were assayed. Generally, under Cu excess, MJ did not modulate growth parameters such as leaf area, root growth, shoot and root fresh weight, and the shoot/root fresh weight ratio. The content of chlorophyll a, b, and carotenoids increased with the increasing Cu content in the leaves. However, a correlation between the reduction of the leaf area and the lower content of the three photosynthetic pigments for 24-h MJ ? 100-lM Cu treatment compared with metal alone was noted. The decrease in the Cu concentration was MJ-dependent only after 1-h MJ ? 50-lM Cu treatment in leaves and after 24-h MJ ? 100-lM Cu treatment in roots. Chlorophyll fluorescence was a weak indicator of the effect induced by MJ in Cu excess, and the most spectacular increase was observed for 1-h and 24-h MJ ? 50 lM Cu in the LNU and for 1-h MJ ? 50 lM Cu in the NPQ parameter. These results suggested a lack of a clear pattern for MJ altering the Cu stress in the runner bean plants. The most important finding was that photosynthesis seemed to be quite resistant to Cu stress and slight modifications in chlorophyll fluorescence were accompanied by significant changes in growth parameters, photosynthetic pigment content, and metal content in the plant. The results obtained may have been strongly related to the plant growth stage, as the measured parameters transform greatly during plant growth and development.

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Section: Discussionmentioning

confidence: 99%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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“…Furthermore, high copper concentrations can affect growth, nutrition, root morphology, and distribution of Cu in roots of other grass plant as Sabi grass (Urochloa mosambicensis) [29]. Normally, Brachiaria decumbens shows a high biomass production and a remarkable resistance to high levels of aluminum in the soils [30]. Also, this specie can support extremely hard conditions such as high heavy metals concentrations into soils and still shows a substantial growth [12].…”

Section: Discussionmentioning

confidence: 99%

“…High copper concentrations can produce different effects on plants growth [31,32]. For example, cucumber leaves showed a reduction in leaf area, while mature leaves exhibited a significant decline in photosynthesis after Cu addition in nutrient solution, also the sucrose and starch content were rose in both mature and immature leaves [31].…”

Section: Discussionmentioning

confidence: 99%

“…For example, cucumber leaves showed a reduction in leaf area, while mature leaves exhibited a significant decline in photosynthesis after Cu addition in nutrient solution, also the sucrose and starch content were rose in both mature and immature leaves [31]. The Sabi grass, after 10 days of growth in diluted nutrient solutions in the two lowest Cu treatments (0.12 and 0.28 μM of Cu(II), or 0.0076 and 0.0178 mg·L −1 of Cu(II), respectively), plants were healthy in appearance and grew vigorously producing approximately 3 g of the shoots and roots (fresh mass) during 10 days of experimental period [29].…”

Section: Discussionmentioning

confidence: 99%

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Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Andreazza¹,

Bortolon²,

Pieniz³

et al. 2013

OJSS

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Brachiaria decumbens is a high biomass plant with great potential for phytoremediation of copper-polluted soils. The current study aimed to evaluate B. decumbens plants for phytoextraction and phytostabilization use in two different copper contaminated vineyard soils and a copper mining waste. Also, the macro and micronutrients uptake were evaluated after plants growth in copper contaminated soils. B. decumbens was cultivated in two vineyard soils (Inceptisol and Mollisol) and a copper mining waste for 47 days of growth in greenhouse. Then, B. decumbens's nutrient uptake was evaluated, and it's potential application in phytoremediation techniques for the phytoextraction and phytostabilization of copper contamination. B. decumbens exhibited high levels of biomass production at contaminated soils and no negative effect on macronutrients uptake was found. Copper contaminated soils affected micronutrients uptake by Brachiaria plants. This Brachiaria specie showed high potential on copper phytoextraction with accumulation of copper concentrations in the shoots and roots of 70 and 585 mg·kg −1 of dry mass, respectively, in the vineyard Inceptisol soil, after 47 days of growth. Mollisol soil and copper mining waste also exhibited high copper concentration in the biomass in the entire plant with 371 and 466 mg·kg −1 , respectively. Although Brachiaria exhibited low levels of translocation factor for copper, this specie showed high potential for copper phytoextraction on Inceptisol, Mollisol and copper mining waste with 1900, 1156 and 1363 g·ha −1 of copper, respectively. In summary, B. decumbens plants showed high potential for copper phytoextraction and phytostabilization of copper on contaminated vineyard soils and copper mining waste.

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“…In lettuce, the potassium content can be partially reduced through boiling or soaking in water. Unfortunately, other nutrients, such as ascorbic acid and minerals, also lose their nutritional net assimilation rate (NAR), and leaf area ratio (LAR), are used to understand inherent differences in a plant's response to environmental stresses such as nutrient deficiency in groundsel (Paul and Ayres, 1986), heavy metal toxicity in cucumber (Vinit-Dunand et al, 2002), and low temperature in rice (Yamori et al, 2011). Ogawa et al (2007Ogawa et al ( , 2012 have studied the effects of potassium restriction on the plant yield of lettuce and spinach.…”

Section: Introductionmentioning

confidence: 99%

Plant Growth and Photosynthesis Response to Low Potassium Conditions in Three Lettuce (<i>Lactuca sativa</i>) Types

Zhong¹,

Johkan²,

Hohjo³

et al. 2017

The Hortic J

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Chronic kidney disease has become a major public health problem worldwide. The aim of this study was to investigate the differences in plant growth and photosynthesis among three lettuce (Lactuca sativa) types with different morphological characteristics under low potassium conditions, providing information for improving the method of low-potassium lettuce culture. Lettuce was hydroponically grown in half-strength Enshi formula nutrient solution containing 4, 2, or 1 me·L In green leaf lettuce, reductions in both the net assimilate rate (NAR) and leaf area ratio (LAR) led to a decline in RGR. In Boston lettuce and romaine lettuce, the reduction of RGR was mainly due to a reduction in LAR, and to a lesser extent caused by NAR. Reduced potassium in the nutrient solution had a greater effect on mature leaves than on newly expanded leaves for all three lettuce types. In green leaf lettuce and Boston lettuce, photosynthetic rates of mature leaves significantly decreased under reduced potassium treatments, with a steady or gradually increased intercellular CO 2 concentration; this indicated that non-stomatal factors suppressed photosynthesis. In romaine lettuce, the photosynthetic rate was less influenced by reduced potassium levels in the nutrient solution, and the significant increase observed in leaf mass per area might contribute to maintaining photosynthesis in the leaf. The decrease in photosynthesis in mature leaves exhibited a similar trend to the decreased potassium content in the leaves within the three lettuce types, but the factor related to the reduction of photosynthesis was different.

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Effects of copper on growth and on photosynthesis of mature and expanding leaves in cucumber plants

Cited by 155 publications

References 42 publications

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste

Plant Growth and Photosynthesis Response to Low Potassium Conditions in Three Lettuce (<i>Lactuca sativa</i>) Types

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Effects of copper on growth and on photosynthesis of mature and expanding leaves in cucumber plants

Cited by 155 publications

References 42 publications

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

Copper Phytoextraction and Phytostabilization by &lt;i&gt;Brachiaria decumbens&lt;/i&gt; Stapf. in Vineyard Soils and a Copper Mining Waste

Plant Growth and Photosynthesis Response to Low Potassium Conditions in Three Lettuce (<i>Lactuca sativa</i>) Types

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Copper Phytoextraction and Phytostabilization by <i>Brachiaria decumbens</i> Stapf. in Vineyard Soils and a Copper Mining Waste