Chitosan Nanoparticles as Biostimulant in Lettuce (Lactuca sativa L.) Plants  

作　　者：Silvia C.Ramírez-Rodríguez Pablo Preciado-Rangel Marcelino Cabrera-De La Fuente Susana González-Morales Hortensia Ortega-Ortiz 

机构地区：[1]Tecnológico Nacional de México,Instituto Tecnológico de Torreón,Ejido Ana,Torreón,Coahuila,27170,México [2]Departamento de Horticultura,Universidad Autónoma Agraria Antonio Narro,Saltillo,25315,México [3]Departamento de Materiales Avanzados,Centro de Investigación en Química Aplicada,Saltillo,Coahuila,25294,México

出　　处：《Phyton-International Journal of Experimental Botany》2024年第4期777-787,共11页国际实验植物学杂志（英文）

基　　金：through Project A-1-S-20923 and Grant No.725753 from S.C.Ramírez Rodríguez.

摘　　要：Biodegradable nanoparticles such as chitosan nanoparticles (CSNPs) are used in sustainable agriculture since theyavoid damage to the environment;CSNPs have positive effects such as the accumulation of bioactive compoundsand increased productivity in plants. This study aimed to investigate the impact of applying CSNPs on lettuce,specifically focusing on enzymatic activity, bioactive compounds, and yield. The trial was conducted using a completelyrandomized design, incorporating CSNPs: 0, 0.05, 0.1, 0.2, 0.4, and 0.8 mg mL−1. The doses of 0.4 mg mL−1improve yields up to 24.6% increases and 0.1 mg mL−1 of CSNPs increases total phenols by 31.2% and antioxidantcapacity by 34.6%. In addition, when low concentrations of CSNPs (0.05 and 0.1 mg L−1) were applied, anincrease in catalase was determined. The CSNPs represent a good alternative to be used as a biostimulant in sustainableagriculture because they improve the yield and quality of lettuce by increasing the bioactive compounds.

关 键 词：Biostimulant bioactive compounds enzymatic activity 

分 类 号：Q94[生物学—植物学]