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Tea (Camellia sinensis (L.) O. Kuntze) hyper-accumulates fluoride (F), mainly in the leaves. To understand how tea copes with the stress caused by F, we tracked photosynthesis, antioxidant defense, and cell ultrastructure under different F concentrations (0–50 mg L−1). High F (≥5 mg L−1) caused decreases in photosynthetic and chlorophyll fluorescence(More)
This study investigated the fluoride present in tea plants (Camellia sinensis (L.) O. Kuntze) and its relationship to soils, varieties, seasons and tea leaf maturity. The study also explored how different manufacturing processes affect the leaching of fluoride into tea beverages. The fluoride concentration in the tea leaves was significantly correlate to(More)
Experiments were performed to study the effects of different fluoride ion (F) concentrations (0, 1, 5, 10, 20, and 50 mg/L) on the chlorophyll content and the antioxidant system (enzymatic and non-enzymatic antioxidants) in tea leaves. The chlorophyll content in the tea leaves remained relatively stable when the concentrations of F were within 1–10 mg/L but(More)
The uptake, translocation, metabolism, and distribution behavior of glyphosate in nontarget tea plant were investigated. The negative effects appeared to grown tea saplings when the nutrient solution contained glyphosate above 200 mg L-1. Glyphosate was highest in the roots of the tea plant, where it was also metabolized to aminomethyl phosphonic acid(More)
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