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Hormesis Responses of Growth and Photosynthetic Characteristics in Thunb. to Cadmium Stress: Whether Electric Field Can Improve or Not? | LitMetric

Hormesis Responses of Growth and Photosynthetic Characteristics in Thunb. to Cadmium Stress: Whether Electric Field Can Improve or Not?

Plants (Basel)

Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, College of Life Science and Engineering, Shenyang University, Shenyang 110044, China.

Published: February 2023

AI Article Synopsis

Article Abstract

"Hormesis" is considered a dose-response phenomenon mainly observed at hyperaccumulator plants under heavy metals stress. In this study, the effects of electric fields on hormesis responses in Thunb. under cadmium (Cd) treatments were investigated by assessing the plant growth and photosynthetic characteristics. Under Cd treatments without electric fields, the parameters of plant growth and photosynthetic characteristics increased significantly when exposed to 5 mg L Cd, and decreased slightly when exposed to 25 mg L Cd, showing an inverted U-shaped trend, which confirmed that low concentration Cd has a hormesis effect on . Under electric fields, different voltages significantly promoted the inverted U-shaped trend of the hormesis effect on the plant, especially by 2 V cm voltage. Under 2 V cm voltage, the dry weight of the root and leaf biomass exposed to 5 mg L Cd increased significantly by 38.38% and 42.14%, and the photosynthetic pigment contents and photosynthetic parameters were also increased significantly relative to the control, indicating that a suitable electric field provides better improvements for the hormesis responses of the plant under Cd treatments. The synergistic benefits of the 5 mg L Cd and 2 V cm electric field in terms of the enhanced hormesis responses of growth and photosynthetic characteristics could contribute to the promoted application of electro-phytotechnology.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9960363PMC
http://dx.doi.org/10.3390/plants12040933DOI Listing

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