Salachna Piotr, Mizielińska Małgorzata, Płoszaj-Witkowska Beata, Jaszczak Agnieszka
Department of Horticulture, West Pomeranian University of Technology in Szczecin, Papieża Pawła VI 3, 71-459 Szczecin, Poland.
Center of Bioimmobilisation and Innovative Packaging Materials, West Pomeranian University of Technology in Szczecin, Janickiego 35, 71-270 Szczecin, Poland.
Materials (Basel). 2021 Oct 18;14(20):6182. doi: 10.3390/ma14206182.
The above-ground parts of plants, including leaves, constitute an important part of a human diet. Their mineral and biological composition can be modified by proper preparation of the soil substrate, i.e., supplying it with nutrients. The objective of this study was to assess the influence of zinc oxide nanoparticles (ZnO NPs) at 0, 50, 100 and 200 mg L concentrations on red perilla ( var. f. ) leaf yield and quality. Plants were grown in 2 L pot under a plastic greenhouse condition. The exposure to ZnO NPs increased leaf fresh and dry weight and leaf Zn content as compared with untreated control. Fresh weight boost was the most pronounced at 50 mg L ZnO NPs. The lowest concentration of ZnO NPs also enhanced the content of total polyphenols, antioxidant activity, and antiradical activity. Treatments with 50 or 100 mg L ZnO NPs boosted the level of total anthocyanins and bacteriostatic activity of 25% extracts. Overall, this study demonstrated that ZnO NPs at low rates is useful as a biostimulant and nanofertilizer for red perilla production.
植物的地上部分，包括叶子，是人类饮食的重要组成部分。其矿物质和生物成分可通过适当准备土壤基质（即向其提供养分）来改变。本研究的目的是评估浓度为0、50、100和200 mg/L的氧化锌纳米颗粒（ZnO NPs）对紫苏（变种f.）叶片产量和品质的影响。植株在塑料温室条件下种植于2 L花盆中。与未处理的对照相比，暴露于ZnO NPs增加了叶片的鲜重和干重以及叶片锌含量。在50 mg/L ZnO NPs时，鲜重增加最为明显。最低浓度的ZnO NPs还提高了总多酚含量、抗氧化活性和抗自由基活性。用50或100 mg/L ZnO NPs处理可提高总花青素水平和25%提取物的抑菌活性。总体而言，本研究表明低剂量的ZnO NPs可用作紫苏生产的生物刺激剂和纳米肥料。
