Changes in Proline Content Accompanying the Uptake of Zinc and Copper by Lemna minor

Bassi, R.

doi:10.1006/anbo.1993.1093

Cited by 89 publications

(43 citation statements)

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“…Although its role in plant osmotolerance remains controversial, proline is thought to contribute to osmotic adjustment, detoxification of reactive oxygen species and protection of membrane integrity. Excess metal induced the decrease in intracellular proline content in the study, suggesting osmosis of membranes was affected by stress caused by excess iron and copper, which agreed with the reports on other plants (Alia and Pardha, 1991;Bassi and Sharma, 1993;Sinha and Saxena, 2006;Sinha et al, 2009). …”

Section: Discussionsupporting

confidence: 91%

“…High accumulation properties of duckweed for metal species have already been documented in previous studies (Bassi and Sharma, 1993;Li and Xiong, 2004a,b;Montvydiene and Marčiulioniene, 2004;Mukherjee et al, 2004;Drost et al, 2007;Horvat et al, 2007;Hou et al, 2007;Razinger et al, 2007Razinger et al, , 2008. Compared with Lemna minor Linn., S. polyrrhiza (L.) Schleid had much more capacity of metal accumulation in this study (Fig.…”

Section: Discussionsupporting

confidence: 52%

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Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Xing

Huang

Liu

2009

Environmental Toxicology

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To elucidate effect of chemical reagents addition on growth of aquatic plants in restoration of aquatic ecosystem, Spirodela polyrrhiza (L.) Schleid was used to evaluate its physiological responses to excess iron (Fe 31 ) and copper (Cu 21 ) in the study. Results showed that accumulation of iron and copper both reached maximum at 100 mg L 21 iron or copper after 24 h short-term stress, but excess iron and copper caused plants necrosis or death and colonies disintegration as well as roots abscission at excess metal concentrations except for 1 mg L 21 iron. Significant differences in chlorophyll fluorescence (Fv/Fm) were observed at 1-100 mg L 21 iron or copper. The synthesis of chlorophyll and protein as well as carbohydrate and the uptake of phosphate and nitrogen were inhibited seriously by excess iron and copper. Proline content decreased with increasing iron or copper concentration, however, MDA content increased with increasing iron or copper concentration. # 2009 Wiley Periodicals, Inc. Environ Toxicol 25: 103-112, 2010.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 52%

Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Xing

Huang

Liu

2009

Environmental Toxicology

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“…[3][4][5] These include proline, sucrose, polyols, trehalose and quaternary ammonium compounds (QACs) such as glycine betaine, alinine betaine, proline betaine and pipecolate betaine. 6,7 The phenomenon of proline accumulation is known to occur under water deficit, 8 salinity, 9,10 low temperature, 11 heavy metal exposure [12][13][14][15] UV radiations, etc. Apart from acting as an osmolyte for osmotic adjustment, proline contributes to stabilizing sub-cellular structures (e.g., membranes and proteins), scavenging free radicals and buffering cellular redox potential under stress conditions.…”

Section: A Reviewmentioning

confidence: 99%

“…Many plants have been shown to accumulate proline when exposed to heavy metal stress. 12,13,63,119,120 Besides acting as an osmoprotectant and ROS quencher, proline also acts as a heavy metal chelator, thereby alleviating heavy metal stress. 121 Proline induces the formation of phytochelatins which chelate with heavy metals like Cd thereby decreasing their toxicity.…”

Section: Effect Of Exogenous Proline On Plants Exposed To Heavy Metalmentioning

confidence: 99%

Role of proline under changing environments

Hayat

Alyemeni³

et al. 2012

Plant Signaling & Behavior

2,120

1,149

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“…Therefore, it seemed rather difficult to compare the magnitude of accumulation of free Pro in our chamomile plants with the values reported by other authors, particularly with regard to diversity of experimental conditions, plant species, type of heavy metals and their concentrations (e.g. Alia and Pardha Saradhi 1991, Bassi and Sharma 1993, Schat et al 1997.…”

Section: Content Of Free Prolinementioning

confidence: 77%

Lead uptake by Matricaria chamomilla L.

Grejtovský¹,

Markušová²,

Nováková³

2008

Plant Soil Environ.

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Investigations were carried out under laboratory conditions in a nutrient solution according to Knop to observe the influence of increasing concentrations of Pb (5, 25, 50, 75 µmol/l) on its uptake and accumulation in chamomile (Matricaria chamomilla L.), diploid cv. Novbona. The essential part of Pb taken up by chamomile plants accumulated in roots; only minor portion of the metal was translocated to the above-ground part of the plant. Addition of Pb to the growth medium reduced significantly the root biomass (-46.3% at the highest supply of Pb); reduction in the above-ground dry matter (-18.3%) was insignificant. Pb treatment also reduced chlorophyll content in leaves (P < 0.01). The highest level of Pb resulted in a decrease of Chl a by 52% and of Chl b by 48%. Lead in the nutrient medium induced accumulation of free proline (Pro) in leaf rosette tissues (P < 0.01). Distribution of Pb in chamomile plants (cv. Novbona) and accumulation of Pb with focus on accumulation in inflorescences (drug Flos chamomillae) was investigated in a pot experiment with soil (Orthic Luvisol) supplemented with 50 mg Pb/kg dry soil. At this treatment, the content of Pb in chamomile inflorescences was 3-fold higher in comparison with the control (P < 0.05) but the level of accumulated Pb (2.08 mg Pb/kg dm flowers) was far below the limit (10 mg/kg) set by the WHO as the highest acceptable level of Pb in the chamomile drug.

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Changes in Proline Content Accompanying the Uptake of Zinc and Copper by Lemna minor

Cited by 89 publications

References 0 publications

Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Effect of excess iron and copper on physiology of aquatic plant Spirodela polyrrhiza (L.) Schleid

Role of proline under changing environments

Lead uptake by Matricaria chamomilla L.

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