Genotypic variation in safflower (Carthamus spp.) cadmium accumulation and tolerance affected by temperature and cadmium levels

Pourghasemian, Nasibeh; Ehsanzadeh, Parviz; Greger, Maria

doi:10.1016/j.envexpbot.2012.12.003

Cited by 36 publications

(10 citation statements)

References 32 publications

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“…They suggested that Cd translocation pathways may vary for different ecotypes of S. alfredii, and that low temperature mainly decreased Cd translocation through the symplastic pathway, but not much for the apoplastic pathway. Similar observation was recently reported by Pourghasemian et al (2013).…”

Section: Climatesupporting

confidence: 88%

“…L.) (Pourghasemian et al, 2013). Besides, a positive effect of high temperature on Cd translocation from roots to the shoots has been reported in plants such as Salix (Landberg and Greger, 1996), scotch pine (Pinus sylvestris) (Ekvall and Greger, 2003), S. alfredii , and sunflower (Pourghasemian et al, 2013). Ekvall and Greger (2003) suggested that when plants are grown at a higher temperature, their Cd translocation increases as a consequence of an enhanced transpiration stream.…”

Section: Climatementioning

confidence: 94%

“…(Moreno et al, 2002), pondweed (Elodea canadensis) (Fritioff et al, 2005), and safflower (Carthamus spp. L.) (Pourghasemian et al, 2013). Besides, a positive effect of high temperature on Cd translocation from roots to the shoots has been reported in plants such as Salix (Landberg and Greger, 1996), scotch pine (Pinus sylvestris) (Ekvall and Greger, 2003), S. alfredii , and sunflower (Pourghasemian et al, 2013).…”

Section: Climatementioning

confidence: 96%

“…Lynch and Steponkus (1987) speculated that high temperatures could alter the cell membrane's lipid composition, and therefore decrease its fluidity, which in turn may facilitate both passive and active metal fluxes through the membrane. Higher temperatures may also increase Cd accumulation in cultivated safflower because of a higher proportion of extracellular binding sites for Cd (Pourghasemian et al, 2013).…”

Section: Climatementioning

confidence: 99%

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Soil Biogeochemistry, Plant Physiology, and Phytoremediation of Cadmium-Contaminated Soils

Yang

et al. 2015

Advances in Agronomy

172

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Section: Climatesupporting

confidence: 88%

Section: Climatementioning

confidence: 94%

Section: Climatementioning

confidence: 96%

Section: Climatementioning

confidence: 99%

See 2 more Smart Citations

Soil Biogeochemistry, Plant Physiology, and Phytoremediation of Cadmium-Contaminated Soils

Yang

et al. 2015

Advances in Agronomy

172

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“…Little scientific data exists on the response of this oilseed crop to Cd stress, though there are some reports that it may be used as a hyper-accumulator crop for Cd-polluted soils (Sayyad et al 2010, Shi et al 2010. A recent study (Pourghasemian et al 2013) has showed that there are genotypic differences in Cd translocation, uptake, and sensitivity in safflower. No further physiological details including photosynthetic performance and cell membrane stability in response to Cd has been provided in the latter study.…”

Section: Introductionmentioning

confidence: 97%

Effects of Cd on photosynthesis and growth of safflower (Carthamus tinctorius L.) genotypes

Ehsanzadeh¹

2015

Photosynt.

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Heavy metals such as cadmium (Cd) may affect different physiological plant functions. We carried out a hydroponic experiment under green house conditions in order to evaluate the effect of Cd on photosynthetic and physiological parameters of safflower. The responses of six safflower genotypes ('Nebraska-10', '2811', 'Kouseh', 'S149', 'C111', and 'K12') to four concentrations of CdCl 2 (0, 1.5, 3, and 4.5 mg L -1 ) were examined. Mean shoot and root dry masses of safflower plants were reduced by nearly 57% after treatment by 4.5 mg L -1 of CdCl 2 . Contrary to the mean proline content which increased by 121%, the mean total leaf area per plant, net photosynthetic rate, stomatal conductance to the CO 2 , leaf chlorophyll a, b, and a+b, carotenoid content, and quantum efficiency of PSII decreased by 84.4, 50.5, 50.0, 31.6, 32.2, 31.8, 32.9, and 11.2%, respectively, at the presence of 4.5 mg L -1 of CdCl 2 . The mean Cd concentration in shoots and roots of safflower genotypes exhibited 52-and 157-fold increase, respectively, due to the addition of 4.5 mg L -1 of CdCl 2 to the growing media. The mean malondialdehyde content was enhanced by 110% with the increasing CdCl 2 concentration, indicating the occurrence of a considerable lipid peroxidation in the plant tissues. Even though the membrane stability index was adversely affected by the application of 1.5 mg L -1 of CdCl 2 , the decrease ranged from 45 to 62% when safflower genotypes were treated with 4.5 mg L -1 of CdCl 2 . Genotype 'Nebraska-10' seemed to be different from the remaining genotypes in response to the 4.5 mg L -1 concentration of CdCl 2 ; its net photosynthetic rate tended to be the greatest and the Cd concentration in shoots and roots was the lowest among genotypes studied. This study proved Cd-induced decline in growth, photosynthesis and physiological functions of safflower.

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Elucidating the physiological and biochemical responses of different tobacco (Nicotiana tabacum) genotypes to lead toxicity

Maodzeka

Hussain

Wei

et al. 2016

Enviro Toxic and Chemistry

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In the present study, the effects of lead (Pb) uptake and toxicity were investigated in a hydroponic culture using 7 tobacco (Nicotiana tabacum L.) genotypes (Bina 1 [B1], Kutsaga Mammoth 10 [KM10], Nanjing 3 [N3], Kutsaga 35 [K35], Kutsaga E1 [KE1], Cocker 176 [C176], and Kutsaga RK6 [KRK6]) that differed in Pb tolerance. Lead was applied as a solution of Pb nitrate at concentrations of 0 μM, 10 μM, 250 μM, and 500 μM. After 4 wk of Pb treatment, tissue biomass and photosynthetic parameters were measured and elemental analysis was performed. The results showed decreases in growth and photosynthetic parameters with increases in Pb concentration compared with the control. The least reduction in the recorded physiological parameters was noted in K35, whereas the greatest reduction was observed in N3, which is an obvious indication of genotypic differences. Activities of peroxidase, catalase, and malondialdehyde increased significantly with increases in Pb concentration, with genotypes K35 and N3 showing the least and the greatest reduction, respectively. The results demonstrate the phototoxic nature of Pb on plants, and it can be concluded that in Pb-prone areas genotypes K35 and B1 can be used for cultivation because they can grow efficiently in the presence of high Pb concentrations while restricting Pb uptake in the aboveground parts, as seen by the higher Pb tolerance index. Environ Toxicol Chem 2017;36:175-181. © 2016 SETAC.

show abstract

Genotypic variation in safflower (Carthamus spp.) cadmium accumulation and tolerance affected by temperature and cadmium levels

Cited by 36 publications

References 32 publications

Soil Biogeochemistry, Plant Physiology, and Phytoremediation of Cadmium-Contaminated Soils

Soil Biogeochemistry, Plant Physiology, and Phytoremediation of Cadmium-Contaminated Soils

Effects of Cd on photosynthesis and growth of safflower (Carthamus tinctorius L.) genotypes

Elucidating the physiological and biochemical responses of different tobacco (Nicotiana tabacum) genotypes to lead toxicity

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