AI Article Synopsis
- Pesticides like imidacloprid and phosalone significantly alter the biochemistry of pistachio plants, affecting various enzymatic activities compared to untreated plants.
- Treated pistachio plants showed increased levels of certain enzymes, total phenols, proteins, and carbohydrates, indicating a physiological response to the pesticides.
- Despite some changes, there were no notable effects on hydrogen peroxide, malondialdehyde, total chlorophyll, or electrolyte leakage, suggesting that while the pesticides impact plant physiology, some aspects remain unchanged.
Article Abstract
Pesticides may manipulate plant physiology as non-target organisms. In this study, we examined biochemical responses of pistachio plants (Pistacia vera L.) to imidacloprid and phosalone as common pesticides used to control pistachio psyllids. Enzymatic characterization in treated plants with pesticides showed greater specific activities of superoxide dismutase, catalase, ascorbate peroxidase, guaiacol peroxidase, phenylalanine ammonia-lyase, glutathione reductase, and glutathione S-transferase compared with untreated plants during 14 days after treatment. Further experiments displayed elevated levels of total phenols and total proteins coupled with significant increases in proline and total soluble carbohydrate contents in treated plants in comparison to untreated plants. Moreover, pesticide treatment leads to a significant decrease in polyphenol oxidase activity. Nevertheless, no significant changes in contents of hydrogen peroxide, malondialdehyde, total chlorophyll, and electrolyte leakage index were obtained in treated plants. Pesticides' impacts on host plant physiology resulted in similar responses between two pesticides with differences in peak days. Overall, the findings of this study provide an insight into the side effects of phosalone and imidacloprid, chemicals with no specific target site in plants, on the physiology and biochemistry of pistachio plants at recommended rates.
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| http://dx.doi.org/10.1007/s10646-021-02434-1 | DOI Listing |
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