Effect of Cadmium on Distribution of Potassium, Calcium, Magnesium, and Oxalate Accumulation in Amaranthus cruentus L. Plants

Osmolovskaya, Natalia; Dung, Vu Viet; Kudryashova, Z. K.; Kuchaeva, Ludmila; Popova, N. F.

doi:10.1134/s1021443718040076

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…One of the most severe anthropogenic environmental stressors is soil pollution with heavy metals, which causes plant growth inhibition and has negative effects on productivity. In addition, heavy metals can cause long-term toxic effects on the health of the ecosystem as they are non-degradable [2,3].…”

Section: Introductionmentioning

confidence: 99%

Determination of Physiochemical Characteristics Associated with Various Degrees of Cadmium Tolerance in Barley Accessions

et al. 2023

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Soil contamination by heavy metals such as cadmium (Cd), which is present as a result of agricultural and industrial practices, is a critical problem in many countries around the world. High Cd concentrations in crops during the seedling stage can have a negative impact on performance and growth. The aim of the present study, which involved 59 barley accessions, was to investigate the effects of different Cd concentrations (125, 250, and 500 µM) on the responses of the barley accessions and to identify the biomarker parameters that would aid in the early growth stage selection of the best-performing accession. Barley accessions differed significantly in their morphological and physiochemical characteristics. Compared to the untreated plants, treatments with Cd lowered germination percentages by 1.75–64.28%, 1.67–46.62%, and 1.66–61.90% for concentrations of 125, 250, and 500 μM, respectively. The average of all genotypes showed significant reductions in root length, shoot length, and fresh weight of seedlings, ranging from 37.08% to 77.88%, 18.70% to 44.10%, and 7.69% to 35.87%, respectively. In comparison to untreated plants, the average seed water absorption (WU) increased across all accessions by 42.21% and 20.74%, respectively, under Cd-125 and Cd-250 stress conditions. In contrast, all biochemical measurements increased when Cd concentrations were elevated, with the exception of guaiacol peroxidase (GPA) and catalase (CAT). Across all genotypes, the mean of proline (PC) and sugar (SSC) contents showed the largest increases (123% for PC and 98.63% for SSC) under the Cd-500 stress condition. Three barley accessions: Acsad-14, ABN, and Arabi Aswad, were found to be the most tolerant accessions under all cadmium exposure, whereas the performance of the other tested accessions: Black-Kalar, Bujayl 1-Shaqlawa, and Black-Chiman was inferior. The OMIC analysis identified the biomarker parameters for differentiating the high, moderate, and low tolerant groups as the WU for Cd-125 stress, GPA, WU, CAT, total phenolic content for Cd-250 stress, and all physiochemical traits, with the exception of the CAT feature for Cd-500 treatment. The majority of trait pairings showed significant correlations. Hence, Acsad-14, ABN, and Arabi Aswad barley accessions that had great performance under cadmium conditions can be candidates for selection in a breeding program to improve the growth of plants and output in lands infected by cadmium. It can be concluded that seed water uptake, guaiacol peroxidase, and proline content were biomarker traits that would aid in the early growth stage selection of the best-performing accession under Cd stress conditions.

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Section: Introductionmentioning

confidence: 99%

Determination of Physiochemical Characteristics Associated with Various Degrees of Cadmium Tolerance in Barley Accessions

et al. 2023

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“…Amaranthus species attract a special interest in the context of Zn stress due to their importance as a source for valuable nutrient-rich foods and fodder crops (Achigan-Dako et al, 2014) with pronounced stress tolerance and well-characterized potential for HM phytoremediation (Watanabe et al, 2009;Bosiacki et al, 2013;Ko et al, 2014). From the point of primary metabolism, this genus is featured with C4 type of photosynthesis (Ludwig, 2016) and elevated production of oxalic acid (Gélinas and Seguin, 2007;Osmolovskaya et al, 2018a). On the other hand, its bioactive secondary compounds were extensively explored (Ragasa et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Metabolic responses to zinc stress in Amaranthus caudatus roots and leaves

Osmolovskaya

Bilova

et al. 2022

Preprint

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During the last decades, pollution with heavy metals (HM) became an important stress factor for plants. However, due to their biochemical plasticity, plants can adjust their metabolism to ensure survival under changing environmental conditions. In the most comprehensive and straightforward way these metabolic shifts can be addressed by the untargeted mass spectrometry-based metabolomics approach. However, although this methodology is well-established for cadmium-related responses, comprehensive metabolomics studies of Zn-induced metabolic shifts are still missing. Therefore, here we propose, to the best of our knowledge, the first gas chromatography-mass spectrometry (GC-MS)-based metabolomics study of Zn2+-induced stress responses in amaranth. Thereby, 419 metabolites could be annotated and 144 of them were unambiguously identified. The metabolic shifts were organ-specific and more pronounced in roots. The most of the responsive metabolites were up-regulated and dominated with sugars and, to a lesser extent, TCA-related organic acids (a total of 51 and 41, respectively) that could be attributed to their involvement in osmoregulation, ROS scavenging and complexation of Zn2+ ions. Galactose was the most Zn2+-responsive root sugar that indicated its possible role in Zn2+ ion binding to the root cell walls. A 59-fold increase of gluconate content in roots clearly indicated its involvement in Zn2+ chelation. A high Zn2+–induced up-regulation of salicylic acid in roots and shoots suggested a key role of this hormone in the activation of Zn2+ stress tolerance mechanisms. Thus, our study provides the first insight in the general trends in Zn-induced biochemical rearrangements and main adaptive metabolic shifts in A. caudatus plants.

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“…Plant Cd accumulation and the subsequent trophic transfer in the food chain pose a serious threat to ecosystems and human health [2,3]. Cd affects the growth and development of plants, inhibits photosynthesis and respiration, imbalances water and nutrient absorption [4][5][6][7], and ultimately results in reduced biomass, leading to leaf yellowing, inhibited root growth and even plant death [8][9][10]. Therefore, it is of great importance to better our understanding of the Cd toxicity mechanism in plants [11,12].…”

Section: Introductionmentioning

confidence: 99%

Ca alleviated Cd-induced toxicity in Salix matsudana by affecting Cd absorption, translocation, subcellular distribution, and chemical forms

Shang

Xue

Jiang

2020

Preprint

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Background: Cadmium (Cd), a ubiquitous and highly toxic heavy metal pollutant, is toxic to animals and plants. Calcium (Ca) is an essential component for plant growth and reduces plant Cd adsorption by competing with Cd. To gain deeper insight into the effects of Ca on Cd absorption, translocation, subcellular distribution, and chemical forms in S. matsudana seedlings under Cd stress, an investigation was conducted on these properties. Results: Adding Ca alleviated Cd physiological toxicity in S. matsudana, reduced Cd adsorption, increased the translocation from roots to shoots, lead to subcellular redistribution of Cd by increasing the proportion of Cd in soluble fractions but decreasing Cd in the cell wall and changed the chemical forms of Cd from 0.6 M HCl- and 2% HAc-extracted Cd to 1 M NaCl-extracted Cd. The energy dispersive X-ray analyses (EDXA) results revealed that after adding Ca, Cd was transferred through the root epidermis, cortex, endodermis, and vascular cylinder, transported to the shoots, and was highly accumulated in leaf epidermal and mesophyll cells, but less in leaf vein and guard cells. The genes involved in Cd uptake and xylem loading included NRAMP1, ZIP8, HMA2, and HMA4, which were up-regulated significantly (p < 0.05) in the Cd and Cd + Ca treatments compared to the control. Conclusions: The findings of this study provide new insight into the mechanism that Ca alleviates Cd toxicity in woody tree species, as well as propose an important prospect of Ca addition for improving the phytoremediation of Cd contamination.

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Effect of Cadmium on Distribution of Potassium, Calcium, Magnesium, and Oxalate Accumulation in Amaranthus cruentus L. Plants

Cited by 10 publications

References 26 publications

Determination of Physiochemical Characteristics Associated with Various Degrees of Cadmium Tolerance in Barley Accessions

Determination of Physiochemical Characteristics Associated with Various Degrees of Cadmium Tolerance in Barley Accessions

Metabolic responses to zinc stress in Amaranthus caudatus roots and leaves

Ca alleviated Cd-induced toxicity in Salix matsudana by affecting Cd absorption, translocation, subcellular distribution, and chemical forms

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