Antioxidative system response of pedunculate oak (Quercus robur L.) seedlings to Cd exposure

Sozoniuk, Magdalena; Nowak, Michał; Dudziak, Karolina; Bulak, Piotr; Leśniowska-Nowak, Justyna; Kowalczyk, Krzysztof

doi:10.1007/s12298-019-00712-1

Cited by 4 publications

(1 citation statement)

References 44 publications

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“…Cd is known to elicit a variable response from plants [ 6 , 14 , 29 , 30 ] and different plants are known to utilise different mechanisms of tolerance [ 2 , 16 , 29 ]. The effective Cd tolerance of a variety of species, including the invasive perennial Phragmites australis and the Cd hyperaccumulator Arabidopsis thaliana , has been associated with the prompt activation of antioxidant enzymes and vacuolar sequestration of Cd via GST to alleviate the negative effects of Cd [ 6 , [31] , [32] , [33] ]. Our results suggest that I. glandulifera employs a similar strategy to achieve Cd-tolerance.…”

Section: Discussionmentioning

confidence: 99%

Enzymatic response to cadmium by Impatiens glandulifera: A preliminary investigation

Coakley

Cahill

Enright

et al. 2021

Biochemistry and Biophysics Reports

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This paper aims to develop our understanding of the effect of cadmium (Cd) on Impatiens glandulifera , a recently identified potential Cd hyperaccumulator. Impatiens glandulifera plants were exposed to three concentrations of Cd (20, 60 and 90 mg/kg) and were sampled at two timepoints (one and seven days) to investigate the stress response of I. glandulifera to Cd. Cd can induce oxidative stress in plants, triggering overproduction of reactive oxygen species (ROS). The level of activity of catalase (CAT) and ascorbate peroxidase (APX), two crucial antioxidant enzymes responsible for detoxifying ROS, were found to increase in a concentration dependent manner. Though there was no change observed in the level of superoxide dismutase (SOD) activity, the activity of glutathione S-transferase (GST), involved in detoxifying and sequestering Cd, increased after exposure to Cd. Cd did not appear to impact the levels of proline and photosynthetic pigments, indicating the plants weren't stressed by the presence of Cd. These results suggest that the rapid response observed in enzyme activity aid the efficacious mitigation of the toxic effects of Cd, preventing significant physiological stress in I. glandulifera .

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Section: Discussionmentioning

confidence: 99%

Enzymatic response to cadmium by Impatiens glandulifera: A preliminary investigation

Coakley

Cahill

Enright

et al. 2021

Biochemistry and Biophysics Reports

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Integrated metabolomic and transcriptomic profiling revealed coping mechanisms of the edible and medicinal homologous plant Plantago asiatica L. cadmium resistance

et al. 2022

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Rapidly increasing cadmium (Cd) pollution led to the increase in contamination in farmland. The study explained the Cd resistance mechanisms of Plantago asiatica L. via physiological, metabolomic, and transcriptomic analyses. The results showed that as soil Cd level increased, proline content declined and then increased significantly. In contrast to the H2O2 content change trend, contents of soluble protein and malondialdehyde (MDA) first decreased, then increased, and finally, declined. Leaf Cd concentration was positively related to soluble protein content and negatively to both MDA content and activities of superoxide dismutase (SOD) and catalase (CAT). Most of the top 50 differential metabolites belonged to organic acids and sugars. Besides combining metabolome and transcriptome data, in the metabolic network involving the target metabolic pathways (e.g., ascorbate and aldarate metabolism, glutathione metabolism, galactose metabolism, and glyoxylate and dicarboxylate metabolism), dehydroascorbate (DHA), regulated by l-ascorbate peroxidase (APX) and l-gulonolactone oxidase (GULO), was significantly up-regulated. This illuminated that, in P. asiatica, CAT and SOD played vital roles in Cd resistance, and soluble protein and MDA acted as the main indexes to characterize Cd damage. It also suggested that DHA functioned effectively in Cd resistance, and the function was regulated by APX and GULO.

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Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

Raza

Habib

Najafi-Kakavand

et al. 2020

Biology

168

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Cadmium (Cd) is one of the most toxic metals in the environment, and has noxious effects on plant growth and production. Cd-accumulating plants showed reduced growth and productivity. Therefore, remediation of this non-essential and toxic pollutant is a prerequisite. Plant-based phytoremediation methodology is considered as one a secure, environmentally friendly, and cost-effective approach for toxic metal remediation. Phytoremediating plants transport and accumulate Cd inside their roots, shoots, leaves, and vacuoles. Phytoremediation of Cd-contaminated sites through hyperaccumulator plants proves a ground-breaking and profitable choice to combat the contaminants. Moreover, the efficiency of Cd phytoremediation and Cd bioavailability can be improved by using plant growth-promoting bacteria (PGPB). Emerging modern molecular technologies have augmented our insight into the metabolic processes involved in Cd tolerance in regular cultivated crops and hyperaccumulator plants. Plants’ development via genetic engineering tools, like enhanced metal uptake, metal transport, Cd accumulation, and the overall Cd tolerance, unlocks new directions for phytoremediation. In this review, we outline the physiological, biochemical, and molecular mechanisms involved in Cd phytoremediation. Further, a focus on the potential of omics and genetic engineering strategies has been documented for the efficient remediation of a Cd-contaminated environment.

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Antioxidative system response of pedunculate oak (Quercus robur L.) seedlings to Cd exposure

Cited by 4 publications

References 44 publications

Enzymatic response to cadmium by Impatiens glandulifera: A preliminary investigation

Enzymatic response to cadmium by Impatiens glandulifera: A preliminary investigation

Integrated metabolomic and transcriptomic profiling revealed coping mechanisms of the edible and medicinal homologous plant Plantago asiatica L. cadmium resistance

Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

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