Proteomics

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Nanoceria modulates kidney bean proteomic response and compromises its seed quality


ABSTRACT: There is inadequate understanding of the environmental fate and effects of engineered nanoparticles, including nanoceria. Also, knowledge about the influence of environmental factors on the bioavailability of these particles and resulting impacts on the nutritional quality of crops is limited. Alterations in mineral and macromolecular composition of some grains and fruits under nanoceria exposure have been reported recently; however, the cellular mechanisms associated with the effects are unknown. Here, we show that the impact of nanoceria at 62.5 to 500 mg/kg soil on kidney bean (Phaseolus vulgaris) productivity and seed quality are influenced by soil organic matter content. Seeds obtained from plants exposed to nanoceria at 125 mg/kg showed unique and contrasting response in terms of nutritional quality under varying soil organic matter content. Additionally, quantitative proteomic analysis provides evidence for dose-dependent down-regulation of some major proteins associated with nutrient storage and carbohydrate metabolism, including phaseolin and lectins in the exposed seeds. This study suggests that nCeO2 exposure negatively impacts the nutritional quality of kidney beans. This altered seed quality may have significant implications for food production and human health.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Phaseolus Vulgaris (kidney Bean) (french Bean)

TISSUE(S): Plant Cell, Seed

SUBMITTER: Sanghamitra Majumdar  

LAB HEAD: Sanghamitra Majumdar

PROVIDER: PXD002407 | Pride | 2019-02-21

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
EAA20140526_101.raw Raw
EAA20140526_103.raw Raw
EAA20140526_105.raw Raw
EAA20140526_107.raw Raw
EAA20140526_19.raw Raw
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Publications

Environmental Effects of Nanoceria on Seed Production of Common Bean (Phaseolus vulgaris): A Proteomic Analysis.

Majumdar Sanghamitra S   Almeida Igor C IC   Arigi Emma A EA   Choi Hyungwon H   VerBerkmoes Nathan C NC   Trujillo-Reyes Jesica J   Flores-Margez Juan P JP   White Jason C JC   Peralta-Videa Jose R JR   Gardea-Torresdey Jorge L JL  

Environmental science & technology 20151104 22


The rapidly growing literature on the response of edible plants to nanoceria has provided evidence of its uptake and bioaccumulation, which delineates a possible route of entry into the food chain. However, little is known about how the residing organic matter in soil may affect the bioavailability and resulting impacts of nanoceria on plants. Here, we examined the effect of nanoceria exposure (62.5-500 mg/kg) on kidney bean (Phaseolus vulgaris) productivity and seed quality as a function of soi  ...[more]

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