Effect of Chitosan nanoparticles on quality indices, metabolites, and vase life of Rosa hybrida cv. Black magic

Abstract

Background Chitosan nanoparticles (CTS-NPs) protect the active ingredients from the environment for a specific period and reduces sweating, control weight loss, delay ripening, and increase vase life. So, a factorial experiment was carried out as a randomized complete design in three replications to investigate the efficiency of CTS-NPs in quality improvement and longevity extension of cut rose flowers. Results The 15-day maximum vase life was attained by the rose placed in a preservative solution containing 10 mg L−1 CTS-NPs. CTS-NPs also reduced microbial growth as compared to controls. Total phenolics, total flavonoids, and amount of anthocyanin in treated petals were dramatically increased. CTS-NPs solutions especially at 10 and 15 mg L−1 concentrations, markedly reduced the H2O2 and malondialdehyde at the end of 15th day and maintained the membrane index. The protein and carbohydrate and petals anthocyanin content and enzymatic activities such as superoxide dismutase, polyphenol oxidase, peroxidase, catalase and ascorbate peroxidase increased in cut roses placed in 10 mg L−1 CTS-NPs vase solution which in turn caused to increase in vase life. Conclusion CTS-NPs especially at a level of 10 mg L−1 can assist plants to enhance light usage efficiency, as well as promote photosynthetic carbon fixation and the production of additional carbohydrate products for plant growth and development. Graphical Abstract

Green synthesis of silver nanoparticles using Eucommia ulmoides leaf extract for inhibiting stem end bacteria in cut tree peony flowers

“…Senescence of cut flowers is affected by an increase in membrane lipid peroxidation and free radicals, including H 2 O 2 , as well as its final product MDA in petals, such as rose, carnation, tree peony, and Strelitzia reginae L ( Hassan et al., 2014 ; Shi et al., 2015 ; Aalifar et al., 2020 ; Thakur et al., 2022 ). Antioxidant defense systems such as SOD, CAT, and POD are employed in plant cells that can be protected from the danger of reactive oxygen species (ROS) ( Shi et al., 2015 ; Hasanuzzaman et al., 2020 ; Zulfiqar and Ashraf, 2021 ; Seyed Hajizadeh et al., 2023 ). Many studies have shown that Ag-NPs play an important role in limiting H 2 O 2 levels and reducing MDA production by inhibiting bacterial growth at the stem ends, thereby extending the life of cut flowers ( Hassan et al., 2014 ; Rashidiani et al., 2020 ; Anvari et al., 2022 ).…”

Physico-Chemical Responses of Alstroemeria spp. cv. Rebecca to the presence of Salicylic Acid and Sucrose in vase solution during postharvest life

“…After culturing, the samples were incubated at 37ºC for 48 h. The number of microorganisms present in the preservative solutions was determined by counting the former colony units post-incubation. These were recorded as colony-forming units per milliliter (CFU mL −1 ), as described by Seyed Hajizadeh et al [ 27 ].…”

A Review of Recent Developments in Biopolymer Nano-Based Drug Delivery Systems with Antioxidative Properties: Insights into the Last Five Years

“…Chitosan can be formulated into nanoparticles, microspheres, or hydrogels, which can control the release of drugs over a period of hours to weeks [64]. In the last few years, it has been widely used to obtain nanoparticles that have antioxidant properties [65][66][67][68][69][70][71][72][73][74][75][76][77][78]. Alginate is a natural polysaccharide that is derived from seaweed.…”