A method for somatic embryogenesis of soybean, (Glycine max), Glycine soja and other Glycine species is provided using immature cotyledon tissue, preferably with the embryonic axis removed, comprising culturing said tissue on a medium containing auxin, preferably NAA at a concentration of at least about 15 mg/l. A further method for such somatic embryogenesis is provided wherein the culture medium contains a synergistically acting lowered carbohydrate and auxin concentration. Particularly embryogenic cells of such tissue are identified and improved maceration methods for contacting such cells with regeneration and transformation media are disclosed.
Methods for transforming somatic tissue from soybean and other Glycine species are also provided.
Whole, fertile, transformed plants are obtained.
提供了一种利用未成熟子叶组织(最好是去掉胚轴的子叶组织)进行大豆(Glycine max)、大豆(Glycine soja)和其他大豆品种的体细胞胚胎发生的方法,包括将所述组织培养在含有辅助素的
培养基上,最好是 NAA,浓度至少约为 15 毫克/升。 还提供了进一步的这种体细胞胚胎发生的方法,其中
培养基含有协同作用的降低
碳水化合物和辅助素浓度的物质。 确定了这种组织中特别是胚胎发生细胞,并公开了将这种细胞与再生和转化
培养基接触的改进浸渍方法。 还提供了转化大豆和其他大豆品种体细胞组织的方法。 获得了完整的、可育的转化植株。