Assessment of cadmium and lead contamination in rice farming soils and rice (Oryza sativa L.) from Guayas province in Ecuador

Ochoa, Martín; Tierra, W; Tupuna‐Yerovi, Diego Santiago; Guanoluisa, D; Otero, Xosé Luís; Ruales, Jenny

doi:10.1016/j.envpol.2020.114050

Cited by 34 publications

(11 citation statements)

References 29 publications

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“…Pollution from sewage and agriculture, changes in land use, and two hydro-electrical power dams are the main environmental pressures on the freshwater ecosystems of the Guayas basin [10,40,86]. For example, Cd is known to occur in soils in Ecuador and to accumulate in significant amounts in certain crops such as cacao and rice [13,87]. This phenomenon was not observed in the case of the red mangrove crab and its ecosystem.…”

Section: Metal Distribution In the Mangrove Wetlandsmentioning

confidence: 99%

“…For instance, many developing countries lack the technology and financial resources to establish municipal wastewater collection and treatment [8], causing the direct discharge of untreated domestic wastewater into the environment. In South America, various anthropogenic activities such as intensive agricultural practices, oil refineries, and metal mining are reported to be important pollution sources of water-related ecosystems [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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From Mangrove to Fork: Metal Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs

Cock

Troyer

Forio

et al. 2021

Foods

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Mangrove wetlands provide essential ecosystem services such as coastal protection and fisheries. Metal pollution due to industrial and agricultural activities represents an issue of growing concern for the Guayas River Basin and related mangroves in Ecuador. Fisheries and the related human consumption of mangrove crabs are in need of scientific support. In order to protect human health and aid river management, we analyzed several elements in the Guayas Estuary. Zn, Cu, Ni, Cr, As, Pb, Cd, and Hg accumulation were assessed in different compartments of the commercial red mangrove crab Ucides occidentalis (hepatopancreas, carapax, and white meat) and the environment (sediment, leaves, and water), sampled at fifteen sites over five stations. Consistent spatial distribution of metals in the Guayas estuary was found. Nickel levels in the sediment warn for ecological caution. The presence of As in the crabs generated potential concerns on the consumers’ health, and a maximum intake of eight crabs per month for adults is advised. The research outcomes are of global importance for at least nine Sustainable Development Goals (SDGs). The results presented can support raising awareness about the ongoing contamination of food and their related ecosystems and the corresponding consequences for environmental and human health worldwide.

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Section: Metal Distribution In the Mangrove Wetlandsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

From Mangrove to Fork: Metal Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs

Cock

Troyer

Forio

et al. 2021

Foods

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“…To validate the method of extracting total metals, standards with six different concentrations were prepared from a stock solution of lead (Merck, Germany) and cadmium (Merck, Germany) with a concentration of 1,000 mgL ‐1 , and the corresponding standard curve was drawn. The rate of recovery of Cd and Pb was greater than 95% (Chang et al., 2016 ; Ochoa et al., 2020 ).…”

Section: Methodsmentioning

confidence: 99%

The effect of chelating agents including potassium tartrate and citrate on the maximum reduction of lead and cadmium during soaking and cooking from some different varieties of rice available in Iran

Karimi

Goli

2021

Food Science & Nutrition

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“…Rice ( O. sativa L.) is one of the most important consumed grains worldwide and feeds more than half of the global population [ 19 ]. Among model plant species, rice has a relatively small genome, which makes it especially ideal for mutagenesis research.…”

Section: Introductionmentioning

confidence: 99%

Time Course Analysis of Genome-Wide Identification of Mutations Induced by and Genes Expressed in Response to Carbon Ion Beam Irradiation in Rice (Oryza sativa L.)

Zhang

Peng

Liu

et al. 2021

Genes

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Heavy-ion irradiation is a powerful mutagen and is widely used for mutation breeding. In this study, using whole-genome sequencing (WGS) and RNA sequencing (RNA-seq) techniques, we comprehensively characterized these dynamic changes caused by mutations at three time points (48, 96, and 144 h after irradiation) and the expression profiles of rice seeds irradiated with C ions at two doses. Subsequent WGS analysis revealed that more mutations were detected in response to 40 Gy carbon ion beam (CIB) irradiation than 80 Gy of CIB irradiation at the initial stage (48 h post-irradiation). In the mutants generated from both irradiation doses, single-base substitutions (SBSs) were the most frequent type of mutation induced by CIB irradiation. Among the mutations, the predominant ones were C:T and A:G transitions. CIB irradiation also induced many short InDel mutations. RNA-seq analysis at the three time points showed that the number of differentially expressed genes (DEGs) was highest at 48 h post-irradiation. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis of the DEGs showed that the “replication and repair” pathway was enriched specifically 48 h post-irradiation. These results indicate that the DNA damage response (DDR) and the mechanism of DNA repair tend to quickly start within the initial stage (48 h) after irradiation.

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Assessment of cadmium and lead contamination in rice farming soils and rice (Oryza sativa L.) from Guayas province in Ecuador

Cited by 34 publications

References 29 publications

From Mangrove to Fork: Metal Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs

From Mangrove to Fork: Metal Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs

The effect of chelating agents including potassium tartrate and citrate on the maximum reduction of lead and cadmium during soaking and cooking from some different varieties of rice available in Iran

Time Course Analysis of Genome-Wide Identification of Mutations Induced by and Genes Expressed in Response to Carbon Ion Beam Irradiation in Rice (Oryza sativa L.)

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