The effect of arsenic contamination on amino acids metabolism in Spinacia oleracea L.

Pavlı́k, Milan; Pavlı́ková, Daniela; Staszková, L.; Neuberg, M.; Kaliszová, Regina; Száková, Jiřina; Tlustoš, Pavel

doi:10.1016/j.ecoenv.2010.07.008

Cited by 75 publications

(40 citation statements)

References 28 publications

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“…No significant differences in the biomass yields and Cd contents in plants were observed between individual experimental years. Our data correspond with those by Pavlík et al (2010), Pavlíková et al (2014a) who reported that excessive amounts of toxic elements in contaminated soil inhibited plant growth and development due to their phytotoxicity. The damage caused by Cd led to senescence and to the bleaching of chlorophylls at Cd3 treatment.…”

Section: Resultssupporting

confidence: 77%

Changes in the contents of amino acids and the profile of fatty acids in response to cadmium contamination in spinach

Zemanová¹,

Pavlı́k²,

Pavlı́ková³

et al. 2015

PLANT SOIL ENVIRON

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Section: Resultssupporting

confidence: 77%

Changes in the contents of amino acids and the profile of fatty acids in response to cadmium contamination in spinach

Zemanová¹,

Pavlı́k²,

Pavlı́ková³

et al. 2015

PLANT SOIL ENVIRON

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“…Our findings indicated the decrease of Glu concentration under Cd2 and Cd3 treatments also for AH, but declines of Glu concentrations were significantly lower compared to NC. Sharma and Dietz (2006) and Pavlík et al (2010) published opposite results for plants grown under trace elements stress -increase of Glu concentration in stressed plants. The Glu decline in AH and NC biomass can be caused by intensive syntheses of plant defence elicitors.…”

Section: Resultsmentioning

confidence: 90%

The changes of contents of selected free amino acids associated with cadmium stress in Noccaea caerulescens and Arabidopsis halleri

Zemanová¹,

Pavlı́k²,

Pavlı́ková³

et al. 2013

PLANT SOIL ENVIRON

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Changes of free amino acid (AA) contents (glutamic acid, glutamine, aspartic acid, asparagines, proline, hydroxyproline) in Noccaea caerulescens and Arabidopsis halleri under cadmium soil contamination (Cd1 = 30, Cd2 = 60, Cd3 = 90 mg/kg soil) are reported. Results of the pot experiment confirmed different effect of Cd on N. caerulescens in contrast to A. halleri and the higher stress adaptation of A. halleri. Total free AA contents in both plant species were not significantly modified by Cd contamination. The glutamic acid and glutamate contents in plant biomass were decreased under Cd2 and Cd3 stress. The declines of contents of both AA can be caused by intensive syntheses of plant defense elicitors, but declines in A. halleri were significantly lower in contrast to N. caerulescens. The content of aspartic acid was increased in N. caerulescens under Cd stress, but in A. halleri its changes were not observed. The different pathways of nitrogen utilization of tested plants were confirmed: the major AA forms used for nitrogen transport are glutamate for N. caerulescens and asparagine for A. halleri. The increase of proline content was determined only in N. caerulescens growing under Cd stress in the beginning of growing period.

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“…However, it is also known today for its participation in scavenging ROS and in assisting plants combat oxidative stress (Matysik et al 2002). An increase in proline level has been noticed upon As exposure in earlier works on H. verticillata (Srivastava and D'Souza 2010), Spinacea oleracea (Pavlik et al 2010), Vigna mungo (Srivastava and Sharma 2013), and rice (Kumar et al 2014). AsIII and AsV induced almost similar increases in proline levels and hence with respect to the response of proline, no differential pattern was found.…”

Section: Effect Of Arsenic On Oxidative Stress Parameters and Responsmentioning

confidence: 80%

Analysis of arsenic induced physiological and biochemical responses in a medicinal plant, Withania somnifera

Siddiqui

Tandon

Srivastava

2015

Physiol Mol Biol Plants

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Withania somnifera has been an important herb in the Ayurvedic and indigenous medical systems for centuries in India. However, these grow as weeds mostly in the wastelands, which receive contaminated water from municipal and industrial sources. In the present investigation, plants of Withania somnifera were exposed to various concentrations of arsenate (AsV) and arsenite (AsIII) (0, 10, 25, 50, 100 μM) for 10 days and analysed for accumulation of arsenic (As) and physiological and biochemical changes. Plants showed more As accumulation upon exposure to AsIII (320 μg g −1 DW in roots and 161 μg g −1 DW in leaves) than to AsV (173 μg g −1 DW in roots and 100 μg g −1 DW in leaves) after 10 days of treatment. Consequently, AsIII exposure caused more toxicity to plants as compared to that AsV, as evaluated in terms of the level of photosynthetic pigments and oxidative stress parameters (superoxide, hydrogen peroxide and lipid peroxidation), particularly at higher concentrations and on longer durations. Plants could tolerate low concentrations (variable for AsIII and AsV) until longer durations (10 days) and high concentrations for shorter durations (1-5 days) through increase in antioxidant enzymes and by augmented synthesis of thiols. In conclusion, As tolerance potential of Withania plants on one hand advocates its prospective use for remediation under proper supervision and on the other demonstrates possible threat of As entry into humans due to medicinal uses.

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The effect of arsenic contamination on amino acids metabolism in Spinacia oleracea L.

Cited by 75 publications

References 28 publications

Changes in the contents of amino acids and the profile of fatty acids in response to cadmium contamination in spinach

Changes in the contents of amino acids and the profile of fatty acids in response to cadmium contamination in spinach

The changes of contents of selected free amino acids associated with cadmium stress in Noccaea caerulescens and Arabidopsis halleri

Analysis of arsenic induced physiological and biochemical responses in a medicinal plant, Withania somnifera

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