lemna minor/prolīns

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Ecotoxicological effects of aluminum and zinc on growth and antioxidants in Lemna minor L.

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Ielogoties Reģistrēties

The present study aimed at investigating effects of zinc and aluminum (0.15 and 0.3mM) in duckweed (Lemna minor L.) over a 15-day period. High bioaccumulation of both metals was accompanied by an increase in dry weight under higher metal treatments. Antioxidant response was observed under both metal

Mercury induced oxidative stress, DNA damage, and activation of antioxidative system and Hsp70 induction in duckweed (Lemna minor).

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Ielogoties Reģistrēties

Mercury uptake and its effects on physiology, biochemistry and genomic stability were investigated in Lemna minor after 2 and 6d of exposure to 0-30μM Hg. The accumulation of Hg increased in a concentration- and duration-dependent manner, and was positively correlated with the leaf damage. Oxidative

Amino Acid Metabolism of Lemna minor L. : I. Responses to Methionine Sulfoximine.

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Ielogoties Reģistrēties

When Lemna minor L. is supplied with the potent inhibitor of glutamine synthetase, methionine sulfoximine, rapid changes in free amino acid levels occur. Glutamine, glutamate, asparagine, aspartate, alanine, and serine levels decline concomitantly with ammonia accumulation. However, not all free

Biochemical and standard toxic effects of acetaminophen on the macrophyte species Lemna minor and Lemna gibba.

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Ielogoties Reģistrēties

Acetaminophen is globally one of the most prescribed drugs due to its antipyretic and analgesic properties. However, it is highly toxic when the dosage surpasses the detoxification capability of an exposed organism, with involvement of an already described oxidative stress pathway. To address the

Amino Acid Metabolism of Lemna minor L. : III. Responses to Aminooxyacetate.

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Aminooxyacetate, a known inhibitor of transaminase reactions and glycine decarboxylase, promotes rapid depletion of the free pools of serine and aspartate in nitrate grown Lemna minor L. This compound markedly inhibits the methionine sulfoximine-induced accumulation of free ammonium ions and greatly

Alleviation of cadmium toxicity in Lemna minor by exogenous salicylic acid.

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Ielogoties Reģistrēties

Cadmium (Cd) is a significant environmental pollutant in the aquatic environment. Salicylic acid (SA) is a ubiquitous phenolic compound. The goal of this study was to assess the morphological, physiological and biochemical changes in duckweed (L. minor) upon exposure to 10μM CdCl2, 10μM CdCl2 plus

Can physiological endpoints improve the sensitivity of assays with plants in the risk assessment of contaminated soils?

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Ielogoties Reģistrēties

Site-specific risk assessment of contaminated areas indicates prior areas for intervention, and provides helpful information for risk managers. This study was conducted in the Ervedosa mine area (Bragança, Portugal), where both underground and open pit exploration of tin and arsenic minerals were

Response of antioxidant defences to Zn stress in three duckweed species.

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Ielogoties Reģistrēties

In the plants, Lemna gibba, Lemna minor and Spirodela polyrrhiza L., the effect of different concentrations of zinc (0.01, 0.05, 0.1, 0.5 and 1.5mgL(-1) Zn) applied for four day was assessed by measuring changes in the chlorophyll, protein, malondialdehyde (MDA), catalase (CAT), superoxide dismutase

Metabolic modifications to Ni excess in L. minor: Role of organic-, amino- and fatty acid profiles.

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Ielogoties Reģistrēties

In this study, the effects of excess nickel (Ni) (100 μM and 200 μM) on growth, antioxidant production, fatty acid, organic and amino acids profiles were examined in Lemna minor L. After 7 days of Ni treatment, chlorosis, growth inhibition and ROS overproduction were observed, accompanied by Ni

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