Possibility to Apply Strontium Aluminate to Produce Light‐Emitting Plants: Efficiency and Safety

Abstract

AbstractLight‐emitting plants (LEPs) provides light in areas without electricity. The phosphorescent compound was used as a lighting material for LEP development. However, using the phosphorescent compound for LEPs development required optimization and phytotoxicity evaluation. Strontium aluminate (SrAl2O4) is a phosphorescent compound that can glow for a long time and is easily recharged by visible light. In this study, using SrAl2O4 to develop LEPs was evaluated. Additionally, plant stress under SrAl2O4 was investigated. Metabolomic analysis can explain the possible mechanism of plants’ stress under SrAl2O4. After, injecting 3 mL of 5 % (w/v) SrAl2O4 products 1, 2, and 3 into the stem of Ipomoea aquatica, the result showed that SrAl2O4 products 2 and 3 caused oxidative stress. The metabolomic analysis also indicated that I. aquatica responded to SrAl2O4 product 1 by increasing pipecolic acid and salicylic acid, while I. aquatica injected with SrAl2O4 products 2 and 3 showed a decrease in salicylic acid around 0.005 and 0.061‐fold, respectively, compared to control plants. and an excess accumulation of MDA around 10.00–12.00 μmol g−1 FW. A 15 % concentration of SrAl2O4 can be used for LEPs development, enabling photoemission 18‐fold for 50 min. SrAl2O4 product 1 has the potential to be a material for LEPs.