Responses of Allium cepa L. exposed to silver nanoparticles

The study was aimed to determine the gallic acid, rutin and quercetin contents and yield of Narli onion genotype insert ignore into journalissuearticles values(Allium cepa L.,); exposed to four different doses insert ignore into journalissuearticles values(0, 25, 50, 75, 100 mg L-1); of silver nanoparticles insert ignore into journalissuearticles values(AgNPs);for30 days, after planting the onion bulbs, attwo-week intervals. Quercetin, rutinand gallic acid contents in the leaves and bulbs of onion plants were determined.While the quercetin content was the highest in 25 mg L-1ofAgNPs treatment insert ignore into journalissuearticles values(575.0 ± 10.39 µg g-1);in the bulb parts, gallic acid content reachedtothe highest rate in 50 mg L-1 of AgNPsinsert ignore into journalissuearticles values(3605.8 ± 90.96µg g-1);, inthe onion bulb, compared to the control insert ignore into journalissuearticles values(2819.3 ± 65.72µg g-1);.The content of rutinwere enhanced in 25 insert ignore into journalissuearticles values(19.72 ± 0.28µg g-1);, 50 insert ignore into journalissuearticles values(21.66 ± 0.57µg g-1); and 75 mg L-1insert ignore into journalissuearticles values(31.08 ± 0.53 µg g-1); of AgNPs treatments, but it was significantly close to the control insert ignore into journalissuearticles values(7.15 ± 0.93µg g-1);, in100 mg L-1insert ignore into journalissuearticles values(10.92 ± 0.38 µg g-1);, in bulb parts.Chlorophyll content showed reducesin all doses, except for25 mg L-1 of AgNPs treatment. Total yield enhanced in treatments of AgNPs, but the highest increase was obtained in treatment of 50 mg L-1 of AgNPs insert ignore into journalissuearticles values(97.49 ± 0.92 µg g-1);. The analysis of quercetin, rutin and gallic acid contents were performed by high performance liquid chromatography insert ignore into journalissuearticles values(HPLC);, and Chlorophyll was determined by SPAD.