Cadmium tolerance of carbon assimilation enzymes and chloroplast in Zn/Cd hyperaccumulator Picris divaricata

Ying, Ruifeng; Qiu, Rongliang; Tang, Yetao; Hu, Pengjie; Qiu, Hao; Chen, Hong-Ru; Shi, Taihong; Morel, Jean-Louis

doi:10.1016/j.jplph.2009.07.005

Cited by 137 publications

(54 citation statements)

References 50 publications

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“…The reduction in the rate of photosynthesis indicates that in addition to depressed growth, the heavy metal impedes the photosynthetic activity by directly interfering in the process of photosynthesis. Previous studies have shown that the decrease in stomatal conductance is a common response to heavy metals stress (Ying et al 2010;Gajewska et al 2013). The reduction may be attributed to the reduced stomatal pore size, induced lower CO 2 assimilation and lowered photosynthetic rate under the condition of stress (Ali et al 1999).…”

Section: Discussionmentioning

confidence: 96%

Ecophysiological responses of almond (Prunus dulcis) seedlings to cadmium stress

Elloumi¹,

Zouari

Chaâri

et al. 2014

Biologia

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Almond (Prunus dulcis L.) seedlings were exposed to 0, 25, 50, 100 and 150 µM of CdCl2 in a solution culture under controlled conditions. The effects of cadmium (Cd) exposure on almond seedlings growth, stomatal architecture, gas exchange and physiological parameters were investigated. Under cadmium stress conditions, significant decrease in fresh and dry weight, length of shoot and chlorophyll content were observed. Stomatal conductance, transpiration and net photosynthetic rates were generally depressed by Cd stress, despite stomatal frequency values and stomatal pore size remained unchanged. Exposure to Cd severely restricted the starch content and increased soluble sugars.

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Section: Discussionmentioning

confidence: 96%

Ecophysiological responses of almond (Prunus dulcis) seedlings to cadmium stress

Elloumi¹,

Zouari

Chaâri

et al. 2014

Biologia

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“…It is supposed that the closure of stomata reduced the photosynthesis (Turner et al, 2007). Ying et al (2010) indicated that the decrease of photosynthetic and gas exchange parameters, especially intercellular CO 2 concentration, stomatal conductance and transpiration rate, could be ascribed to the abnormality of stomata, like stomatal closure, less stoma density and high stomatal resistance, in high cadmium-exposed Picris divaricata. The parallel changes of photosynthetic rate, stomatal conductance, intercellular CO 2 concentration and transpiration rate provide evidence that maintenance of photosynthetic rate mainly was attributed to the stomatal conductance, which later controls the transpiration.…”

Section: Discussionmentioning

confidence: 99%

“…Cadmium has been shown to be one of the most effective inhibitors of photosynthetic activity. It can enter chloroplasts and disturb chloroplast function by inhibiting the enzymatic activities of chlorophyll biosynthesis and chloroplast structure (Ying et al, 2010). Stomatal opening, a transpiration, photosynthesis and antioxidant metabolism have been reported to be affected by cadmium (Feng et al, 2010;Shi et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Cadmium effects on mineral accumulation, antioxidant defence system and gas exchange in cucumber

Sun

Zuo

et al. 2015

Zemdirbyste-Agriculture

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The effects of different concentrations (10, 50, 100 and 500 μM) of cadmium (Cd) on manganese (Mn) and iron (Fe), lipid peroxidation, activities of antioxidant enzymes and photosynthetic function were investigated in hydroponically grown cucumber (Cucumis sativus L.). Results indicated that cadmium was accumulated primarily in roots. In the roots and shoots, the cadmium content increased with the increasing cadmium concentrations, and induced decrease of manganese significantly (P < 0.005). The levels of iron had an increasing trend with increasing cadmium concentration and duration of treatment. Cadmium-induced oxidation stress and lipid peroxidation in C. sativus showed by the increased concentration of MDA (malondialdehyde). Cadmium induced higher SOD (superoxide dismutase) and POD (peroxidase) activities than CAT (catalase) activity, suggesting that SOD and POD provided a better defence mechanism against cadmium-induced oxidative damage in C. sativus. The net photosynthetic rate, transpiration rate, stomatal conductance and intercellular CO 2 concentration were reduced in the presence of cadmium.

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“…Cd convincingly resulted in marked distortion of chloroplast ultrastructure leading to disturbed shape and inflated thylakoids [14]. Once Cd enters chloroplasts, it can disturb chloroplast function by inhibiting the enzymatic activities of chlorophyll biosynthesis, pigment -protein complexes, O 2 -evolving reactions of photosystem II (PSII), electron flow around photosystem I (PSI), and chloroplast structure [15][16][17][18].…”

mentioning

confidence: 99%

Ultrastructural and Photosynthetic Response of Populus 107 Leaves to Cadmium Stress

Ge¹,

Jiao²,

Jiang³

et al. 2015

Pol. J. Environ. Stud.

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Cadmium tolerance of carbon assimilation enzymes and chloroplast in Zn/Cd hyperaccumulator Picris divaricata

Cited by 137 publications

References 50 publications

Ecophysiological responses of almond (Prunus dulcis) seedlings to cadmium stress

Ecophysiological responses of almond (Prunus dulcis) seedlings to cadmium stress

Cadmium effects on mineral accumulation, antioxidant defence system and gas exchange in cucumber

Ultrastructural and Photosynthetic Response of Populus 107 Leaves to Cadmium Stress

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