Free amino acids, carbon and nitrogen isotopic compositions responses to cadmium stress in two castor (Ricinus communis L.) species

Zhu, Guangtian; Cheng, Dandan; Wang, Xingfeng; Guo, Qingjun; Zhang, Qian; Zhang, Jun; Tu, Qiang; Li, Wangjun

doi:10.1016/j.plaphy.2022.05.013

Cited by 7 publications

(8 citation statements)

References 53 publications

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“…13 High standard deviations within the Chinese and the USA samples (Table 1) indicated the variation in the level of synthetic fertilizer usage and availability of other primary nitrogen sources besides synthetic fertilizer, i.e., soil nitrogen. 38 δ 13 C and δ 15 N could also be influenced by cadmium exposure to plants, e.g., in castor, 39 but it was not evident in our study.…”

Section: ■ Materials and Methodscontrasting

confidence: 81%

“…Many previous studies have demonstrated that reduced δ 15 N bulk values are associated with inorganic fertilizers common to conventional agriculture, whereas higher δ 15 N bulk results from the use of organic sources of N, such as manures, in organic farming . This finding is expected, as the majority of walnuts grown in the USA are produced through conventional practice and many walnut orchards in China also rely on synthetic fertilizer . The lower δ 15 N bulk values associated with synthetic fertilizer corresponded to minimum or no isotope fractionation occurring during the production of the fertilizer via the Haber–Bosch process …”

Section: Results and Discussionmentioning

confidence: 90%

“…10 This finding is expected, as the majority of walnuts grown in the USA are produced through conventional practice 38 and many walnut orchards in China also rely on synthetic fertilizer. 39 The lower δ 15 N bulk values associated with synthetic fertilizer corresponded to minimum or no isotope fractionation occurring during the production of the fertilizer via the Haber−Bosch process. 13 High standard deviations within the Chinese and the USA samples (Table 1) indicated the variation in the level of synthetic fertilizer usage and availability of other primary nitrogen sources besides synthetic fertilizer, i.e., soil nitrogen.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Bulk and Compound-Specific Stable Isotope Analysis for the Authentication of Walnuts (Juglans regia) Origins

Athaillah,

Yarnes,

Wang

2023

J. Agric. Food Chem.

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Walnuts are grown in various countries, and as product origin information is becoming more important to consumers, new techniques to differentiate walnut geographical authenticity are needed. We conducted bulk stable isotope analysis (BSIA) and compound-specific stable isotope analysis (CSIA) on walnuts grown in seven countries. The BSIA consisted of δ 13 C bulk , δ 15 N bulk , and δ 34 S bulk , and CSIA covered δ 2 H fatty acid , δ 13 C fatty acid , δ 13 C amino acid , δ 15 N amino acid , and δ 2 H amino acid . Analysis of variance (ANOVA) and linear discriminant analysis (LDA) were used for statistical analysis to compare samples from the USA and China. Parameters that yielded significant variations are δ 2 H C18:1n−9 , δ 13 C C18:2n−6 , δ 13 C C18:3n−

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Section: ■ Materials and Methodscontrasting

confidence: 81%

Section: Results and Discussionmentioning

confidence: 90%

Section: ■ Materials and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Bulk and Compound-Specific Stable Isotope Analysis for the Authentication of Walnuts (Juglans regia) Origins

Athaillah,

Yarnes,

Wang

2023

J. Agric. Food Chem.

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“…Under high-temperature stress, plants often turn to differentially expressed amino acids as an essential osmotic regulator to resist stress. Evidence from numerous studies shows that regulating the amino acid metabolism pathway is a successful strategy to enhance plants' viability in adverse conditions [60][61][62][63][64]. Notably, amino acids in plants enhance their drought resistance by affecting enzyme activity [65], and metabolomics provides evidence that amino acids play a crucial role in salt stress in plants [66].…”

Section: Discussionmentioning

confidence: 99%

Enhancing the Adaptability of Tea Plants (Camellia sinensis L.) to High-Temperature Stress with Small Peptides and Biosurfactants

Chen,

Song,

et al. 2023

Plants

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Tea plants are highly susceptible to the adverse effects of a high-temperature climate, which can cause reduced yield and quality and even lead to plant death in severe cases. Therefore, reducing the damage caused by high-temperature stress and maintaining the photosynthetic capacity of tea plants is a critical technical challenge. In this study, we investigated the impact of small oligopeptides (small peptides) and surfactants on the high-temperature-stress tolerance of tea plants. Our findings demonstrated that the use of small peptides and surfactants enhances the antioxidant capacity of tea plants and protects their photosynthetic system. They also induce an increase in gibberellin (GA) content and a decrease in jasmonic acid (JA), strigolactone (SL), auxin (IAA), and cytokinin (CTK) content. At the same time, small peptides regulate the metabolic pathways of diterpenoid biosynthesis. Additionally, small peptides and surfactants induce an increase in L-Carnosine and N-Glycyl-L-Leucine content and a decrease in (5-L-Glutamyl)-L-Amino Acid content, and they also regulate the metabolic pathways of Beta-Alanine metabolism, Thiamine metabolism, and Glutathione metabolism. In summary, small peptides and surfactants enhance the ability of tea plants to resist high-temperature stress.

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“…He et al [13] studied drinking-water Cd exposure in mice and observed intestinal villi shedding, decreased expression of intestinal tight junction genes, and increased levels of the cytokine TNF-α. Cd exposure in mice also significantly decreases gut microbial richness and inhibits the gene pathways related to the metabolism of amino acids (AAs) [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Threonine Facilitates Cd Excretion by Increasing the Abundance of Gut Escherichia coli in Cd-Exposed Mice

Fang

Zhou

et al. 2022

Molecules

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Cadmium (Cd) can easily enter the body through the food chain and threaten health since Cd pollution is prevalent in the environment. Gut microbiota is necessary for the reduction of metal ions. To reduce Cd-induced harmful impacts and Cd accumulation in the body, we investigated the effect of amino acids on gut microbiota and Cd excretion in (fecal Cd) Cd-exposed mice. The screening of 20 amino acids showed that threonine (Thr) effectively increased fecal Cd, and reduced Cd-induced intestinal structural damage. The abundance of Escherichia-Shigella genus and KF843036_g significantly increased after the oral administration of Thr. As the type species of the Escherichia-Shigella genus, Escherichia coli exhibited high similarity to KF843036_g species and significantly decreased Cd-induced gut damage. Cd contents in the liver, kidney, and gut of Cd-exposed mice were also significantly (p < 0.05) decreased after E. coli treatment, while the contents in the feces were increased. The results demonstrated the potential roles that gut E. coli might play in Thr-mediated Cd excretion in Cd-exposed mice. The findings may provide important data for better understanding the molecular biological mechanism of Thr in reducing Cd accumulation in the body.

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Free amino acids, carbon and nitrogen isotopic compositions responses to cadmium stress in two castor (Ricinus communis L.) species

Cited by 7 publications

References 53 publications

Bulk and Compound-Specific Stable Isotope Analysis for the Authentication of Walnuts (Juglans regia) Origins

Bulk and Compound-Specific Stable Isotope Analysis for the Authentication of Walnuts (Juglans regia) Origins

Enhancing the Adaptability of Tea Plants (Camellia sinensis L.) to High-Temperature Stress with Small Peptides and Biosurfactants

Threonine Facilitates Cd Excretion by Increasing the Abundance of Gut Escherichia coli in Cd-Exposed Mice

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