›› 2006, Vol. 49 ›› Issue (5): 719-725.

• 研究论文 •    下一篇

家蚕胚胎细胞系BmE-SWU2的建立及其生物学特性研究

潘敏慧,陈敏,丁裕斌,洪锡钧,鲁成*   

  1. (西南大学蚕学与生物技术学院,农业部蚕桑学重点实验室,重庆400716)
  • 出版日期:2006-11-08 发布日期:2006-10-20
  • 通讯作者: 鲁成

Establishment and characterization of an embryo cell line of Bombyx mori, BmE-SWU2

PAN Min-Hui, CHEN Min, DING Yu-Bin, HONG Xi-Jun, LU Cheng   

  1. (Key Sericultural Laboratory of Agriculture Ministry, College of Sericulture and Biotechnology, Southwest University, Chongqing 400716, China)
  • Online:2006-11-08 Published:2006-10-20
  • Contact: LU Cheng

摘要:

家蚕反转期胚胎组织经过一年多的原代培养,建立了BmE-SWU2细胞系。该细胞系细胞呈短梭形或圆形,细胞较小,属上皮型贴壁生长细胞系;细胞生长速度快,铺平率高于80%,繁殖力强,细胞群体倍增时间为51.8 h。BmE-SWU2细胞系的二倍体细胞(2n=56)比例达到89.76%,属二倍体细胞系,其染色体具有鳞翅目昆虫染色体的典型特征,中期染色体呈短杆状或颗粒状。BmE-SWU2细胞系对BmNPV高度敏感,TCID50为1.581×10-7

关键词: 家蚕, 胚胎细胞系, 核型, 生长曲线, 病毒敏感性

Abstract:

An embryo cell line of Bombyx mori, named BmE-SWU2, was established after one year primary culture. The cells are relatively single, short shuttle-like or round, and very small in shape. The cell line belongs to adhesive-type epithelium. The cell doubling time was 51.8 h. The ratio of duple cells was 89.76%. Thus, the cell line belongs to duple cell line. The chromosomes of BmE-SWU2 was typical of Lepidoptera, namely the chromosomes in metaphase were short pole-like or granule-like and the centromeres dispersed-type. BmE-SWU2 was more sensitive to BmNPV. The 50% tissue culture infection dose (TCID50) was 1.581×10-7.

Key words: Bombyx mori, embryo cell line, karyotype, growth curve, virus susceptivity