Determination of Optimal Hormone and Mineral Salts Levels in Tissue Culture Media for Callus Induction and Growth of Industrial Hemp (<i>Cannabis sativa</i>L.)

• 作者: John DuBois Kayla Thomas Matthew Fuller Shannon Smith Xoe Thacker
• 来源期刊: 农业科学(英文)
• 学科: 医学
• 关键词: Industrial Hemp CANNABIS Sativa TISSUE Culture Hormones MINERAL SALTS Callus
• 年，卷（期）: 2018,（10）
• 页码范围: 1250-1268
• 页数: 19页
• 分类号: R73

摘要

Historically, industrial hemp (Cannabis sativa L.) has been a valuable source of metabolites and compounds, such as cannabidiols. There is a need for large amounts of plant tissue to be grown under controlled environments, and plant tissue culture is one unique way to yield this tissue. The purposes of this study were to determine: 1) the optimal concentrations (μM)/ratios of auxin:cytokinin in media and;2) the optimal mineral salts formulation for callus induction and callus growth in select hemp cultivars. To find the optimal concentration/ratios, 16 different combinations of auxin:cytokinin and three different mineral salts formulations were evaluated. The three mineral salts formulations tested were MS salts, MB5D1K and an MTSU formulation. The top performing hormone formulations were determined to be equal concentrations (1:1, 2:2, 3:3 μM) of auxin and cytokinin. The top performing media hormone formulations for callus induction were determined to be 2:1, 2:2, 2:3, and 3:2 μM (auxin:cytokinin). The optimal mineral salts formulation was determined to be MD5D1K. Therefore, the overall optimal media formulation for hemp callus production would be MB5D1K salts with the concentration/ratio of 2:2 μM (auxin:cytokinin).