Essential and nonessential elements in the red-crowned crane<i>Grus japonensis</i>of Zhalong Wetland, northeastern China

Luo, Jinming; Ye, Yajie; Gao, Zhongyan; Wang, Wenfeng

doi:10.1080/02772248.2015.1007989

Cited by 30 publications

(9 citation statements)

References 20 publications

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“…Bioaccumulation of toxic heavy metals in biota of the riverine ecosystems may have adverse effects on animals and humans [9]. Higher levels of heavy metals in biota can have negative effects on the ecological health of aquatic animal species and may contribute to declines in their populations [10]. Heavy metals are strong neurotoxins in fish species.…”

Section: Introductionmentioning

confidence: 99%

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Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity, and Bioaccumulation

Ali

Khan

Ilahi

2019

Journal of Chemistry

1,719

832

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Heavy metals are well-known environmental pollutants due to their toxicity, persistence in the environment, and bioaccumulative nature. Their natural sources include weathering of metal-bearing rocks and volcanic eruptions, while anthropogenic sources include mining and various industrial and agricultural activities. Mining and industrial processing for extraction of mineral resources and their subsequent applications for industrial, agricultural, and economic development has led to an increase in the mobilization of these elements in the environment and disturbance of their biogeochemical cycles. Contamination of aquatic and terrestrial ecosystems with toxic heavy metals is an environmental problem of public health concern. Being persistent pollutants, heavy metals accumulate in the environment and consequently contaminate the food chains. Accumulation of potentially toxic heavy metals in biota causes a potential health threat to their consumers including humans. This article comprehensively reviews the different aspects of heavy metals as hazardous materials with special focus on their environmental persistence, toxicity for living organisms, and bioaccumulative potential. The bioaccumulation of these elements and its implications for human health are discussed with a special coverage on fish, rice, and tobacco. The article will serve as a valuable educational resource for both undergraduate and graduate students and for researchers in environmental sciences. Environmentally relevant most hazardous heavy metals and metalloids include Cr, Ni, Cu, Zn, Cd, Pb, Hg, and As. The trophic transfer of these elements in aquatic and terrestrial food chains/webs has important implications for wildlife and human health. It is very important to assess and monitor the concentrations of potentially toxic heavy metals and metalloids in different environmental segments and in the resident biota. A comprehensive study of the environmental chemistry and ecotoxicology of hazardous heavy metals and metalloids shows that steps should be taken to minimize the impact of these elements on human health and the environment.

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Section: Introductionmentioning

confidence: 99%

“…Reaction of a metal with glutathione (adapted from[107]). 10 Journal of Chemistry (iv) Efforts should be made to minimize heavy metal contamination in aquatic and terrestrial ecosystems to safeguard the biota and the health of their consumers. (v) e public should be educated about the harmful effects of toxic heavy metals on human health and the environment.…”

mentioning

confidence: 99%

Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity, and Bioaccumulation

Ali

Khan

Ilahi

2019

Journal of Chemistry

1,719

832

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“…Although the resident population of these cranes in Japan remains stable (Teraoka et al 2007), their population in mainland Asia continues to decline because of wetland degradation and loss to agricultural and industrial development (Cao & Liu 2008). Since the 1980s, the red-crowned crane has been intensively studied in China, more so than any other crane species (Wang & Ma 1987;Ma & Li 2002;Li et al 2012;Luo et al 2013Luo et al , 2014Luo et al , 2015. Despite long-standing interest in the food preferences of the red-crowned crane, however, to the best of our knowledge, documentation related to its gizzard content and fecal analysis has never been published.…”

Section: Introductionmentioning

confidence: 92%

Stomach content and faecal analysis of red-crowned crane (Grus japonensis) in Zhalong Wetland, Northeastern China

Luo

Gao

et al. 2015

Biologia

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The discovery of eight dead red-crowned cranes in Zhalong Wetland, northeastern China, allowed us to examine their digestive tracts for identifiable prey in this study. Stomach content and fecal analyses were used to determine the foraging ecology of this crane species. The stomach content mass of the red-crowned crane carcasses varied according to body size and ranged from 10.62 g to 26.32 g. Grit particles prevailed in the stomach of the birds and accounted for approximately 87% of the mass of the stomach contents by weight (mainly gravel with particle sizes of 2-10 cm). Gizzard contents included plant and aquatic animals, which made up 63% and 37%, respectively, of the weight. Maize, seed, and fish were the most common residues in the gastric content; and zoobenthic debris, seeds, and reed organs were markedly present in the crane feces. The combined use of stomach content and fecal analyses is recommended for future studies on the food habits of this rare bird species.

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“…Heavy metals are naturally occurring elements with high‐atomic weight and high density compared to water. They are classified as essential and nonessential 1 . The first category plays a role in biochemical and physiological functions in animals, plants, and microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Molecular cloning and oxidative‐stress responses of a novel Phi class glutathione S‐transferase (GSTF) gene in the freshwater algae Closterium ehrenbergii

Abassi

Wang

Kim

et al. 2021

Environmental Toxicology

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Glutathione S‐transferases (GSTs) belong to a family of enzymes involved in diverse biological processes, including detoxification and protection against oxidative damage. Here, we determined the full‐length sequence (915 bp) of a novel Phi class cytosolic glutathione S‐transferase (GSTF) gene from the green algae Closterium ehrenbergii. We examined the gene structure and expression patterns in response to metals and endocrine disrupting chemicals (EDCs). It was significantly upregulated by metals, but responded differently to EDCs. The highest up‐regulation of CeGSTF was registered under 0.1 mg/L CuCl2 and 0.01 mg/L CuSO4 treatments. In a 72‐h course experiment with treatment of 0.1 mg/L CuCl2, CeGSTF was dramatically induced at 6 h, and then gradually decreased with increasing exposure time. This was consistent with the increase in both GST activity and ROS production in copper‐treated cells. These results suggest that CeGSTF may be involved in detoxification mechanisms associated with oxidative stress in green algae.

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Essential and nonessential elements in the red-crowned craneGrus japonensisof Zhalong Wetland, northeastern China

Cited by 30 publications

References 20 publications

Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity, and Bioaccumulation

Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity, and Bioaccumulation

Stomach content and faecal analysis of red-crowned crane (Grus japonensis) in Zhalong Wetland, Northeastern China

Molecular cloning and oxidative‐stress responses of a novel Phi class glutathione S‐transferase (GSTF) gene in the freshwater algae Closterium ehrenbergii

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