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Abscisic acid-generating bacteria can reduce Cd concentration in pakchoi grown in Cd-contaminated soil.

08:00 EDT 8th April 2019 | BioPortfolio

Summary of "Abscisic acid-generating bacteria can reduce Cd concentration in pakchoi grown in Cd-contaminated soil."

Contamination of vegetable plants with cadmium (Cd) has become a serious issue in recent years. In the present study, pakchoi (Brassica chinensis L.) grown in Cd-contaminated soil inoculated with abscisic acid (ABA)-generating bacteria, Azospirillum brasilense and Bacillus subtilis, showed 28%-281% and 26%-255% greater biomass, and 40%-79% and 43%-77% lower Cd concentrations, respectively, than those of the control plants. These treatments also alleviated the Cd-induced photosynthesis inhibition and oxidative damage (indicated by malondialdehyde [MDA], HO, and O). Furthermore, the application of bacteria also remarkably improved the levels of antioxidant-related compounds (total phenolics, total flavonoids, ascorbate, and 2,2-diphenyl-1-picrylhydrazyl [DPPH] activity) and nutritional quality (soluble sugar and soluble protein) in the Cd-supplied plants. Based on these results, we conclude that the application of ABA-generating bacteria might be an alternative strategy for improving the biomass production and quality of vegetable plants grown in Cd-contaminated soil.

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This article was published in the following journal.

Name: Ecotoxicology and environmental safety
ISSN: 1090-2414
Pages: 100-107

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