Journal of Shaanxi Normal University(Natural Science Edition) >
Effects of exogenous elicitors and temperature on anthocyanin content in suspension cells of Lycium ruthenicum
Received date: 2023-07-11
Online published: 2024-02-28
Lycium ruthenicum, rich in anthocyanins, is a medicinal and edible plant with high development and utilization value. In this study, aseptic seedling leaves of Lycium ruthenicum were used as explants to induce callus formation and establish a cell suspension system. The impacts of different exogenous hormones and temperatures on the anthocyanin content in suspension cells were investigated. The optimal culture system for callus induction was WPM+0.5 mg/L KT+2.0 mg/L 2,4-D+20.0 g/L sucrose+6.0 g/L agar, and the optimal system for suspension cell culture was WPM+0.5 mg/L KT+2.0 mg/L 2,4-D+0.01 mg/L NAA+20.0 g/L sucrose. The growth curve exhibited an ‘S'-shaped pattern, with the number of viable cells peaking at 7.93×105 cells/mL after 18 days of suspension culture. The treatments with 30 g/L sucrose, 200 mg/L methyl jasmonate, 2 mg/L abscisic acid and 16 ℃ all can significantly enhance the production of anthocyanin in suspension cells (P<0.05). Among these treatments, the induction effect of 2 mg/L abscisic acid was the best. For the combined treatments of 16 ℃ and 3 exogenous hormones, the combined induction treatment of 200 mg/L methyl jasmonate+16 ℃ could significantly enhance the anthocyanin accumulation in suspension cells (P<0.05), resulting in 1.13 times higher anthocyanin content than that of the 16 ℃ treatment alone. The results laid a foundation for further optimizing the suspension cell culture system and promoting anthocyanin accumulation in Lycium ruthenicum.
ZENG Haitao , QIU Yingying , XU Hao , TANG Qi , CHEN Mengjiao , ZHENG Tao . Effects of exogenous elicitors and temperature on anthocyanin content in suspension cells of Lycium ruthenicum[J]. Journal of Shaanxi Normal University(Natural Science Edition), 2024 , 52(1) : 79 -89 . DOI: 10.15983/j.cnki.jsnu.2024208
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