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Light microscopic observation of L. multiflorum root hairs after 7 days exposure of DI (a); 23.8 mg/L KNO3 (b); 40 mg/L Ag content of AgNO3 (c); 40 mg/L Ag content of AgNPs (d); 40 mg/L Ag content of Ag@PDS (e); photo of fibrous root of L. multiflorum in 40 mg/L Ag content of Ag@PDS (f).
