germ layer

1. Germ layer& One of three distinct layers of cells that arise in the inner cell mass, the ectoderm, mesoderm, and endoderm, each of which develops into a distinctly different tissue in the embryo.
   胚胎发育到原肠胚时的细胞层，分为内胚层、中胚层、外胚层，各胚层将发育成一定的组织器官。
2. This suggests germ layer boundaries are less absolute than previously thought.
   这表明胚层之间的界限并不是我们胰腺想想的那样严格。
3. On about 8th day after oviposition the embryo is at the germ layer stage; Stabilization of Wheat Germ
   卵产后8天，囊胚层形成。小麦胚的稳定化
4. Maize immature embryo, mature embryo, radicel, germ layer, hypocotyl are served as explants to research their regeneration abilities.
   选用玉米幼胚、成熟胚、胚叶、胚轴、胚根作为外植体，研究不同外植体诱导愈伤及再生能力情况。
5. Objective: To investigate the isolation, purification and culture methods of chicken embryonic germ cells ( EGCs) on feeder layer cells of mice embryonic fibroblasts ( MEFs).
   目的：探讨以鼠胚成纤维细胞为饲养层分离、培养鸡胚胎生殖细胞的方法和条件。
6. It is concluded that the action is mainly carried out by the cupric ion, and amino-acid can enhance the penetration of the cupric ion into the germ membrane and plant skin. Within the layer the copper?
   在混合氨基酸铜络合物中，起杀菌作用的主要是铜离子，氨基酸可以增加铜离子对植物病菌细胞膜的通透性。
7. The ability of multiple lineage differentiation and long term self-renewal make stemcells to be the most important seed cells in future regenerative medicine and the best tool for the research inhuman early germ layer specification and organogenesis, drug screen and gene therapy.
   干细胞具有的多向分化潜能和自我更新能力使其成为未来再生医学的重要种子细胞，并成为研究人类早期胚层特化和器官形成、药物筛选以及基因治疗的最佳工具。
8. HAFS cells that express embryonic and adult stem cell markers can differentiate into cell types of three embryonic germ layer and display specialized functions.
   这种细胞表达ES细胞和成体干细胞标志基因，体外诱导可分化为包括三个胚层的细胞，且通过了功能测试。
9. Objectives: 1. To establish a cultivation method for more efficient growth and amplification of human embryonic germ cells ( hEGCs) in vitro using human embryonic fibroblasts as feeder layer. 2.
   目的：1.建立以人胚胎成纤维细胞为饲养层体外培养、扩增人胚胎生殖细胞（humanembryonicgermcells，hEGCs，人EG细胞）的方法。

noun

1. (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation