Abstract
Young Brassicaceae plants grown on solidified nutrient solutions were exposed to erythromycin in their growth media at concentrations ranging from 10 to 40 mmol×L-1. At 7 days from the onset of the experiment, the plants were harvested, their growth parameters were evaluated, and the leaves were assayed for chlorophyll and carotenoids contents. The obtained results pointed out a dose dependent decrease of both chlorophyll and carotenoids contents in plants’ leaves. The plants exposed to erythromycin also had shorter stems and roots compared to control plants. A negative effect of erythromycin on photosynthesis, by inhibiting chloroplast protein biosynthesis, chloroplast assembly and function is discussed.
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