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Establishment of two midgut cell lines from the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae).
In Vitro Cellular & Developmental Biology - Animal ( IF 1.5 ) Pub Date : 2019-12-02 , DOI: 10.1007/s11626-019-00420-w
Kaile Zhou 1 , Cynthia L Goodman 2 , Joseph Ringbauer 2 , Qisheng Song 1 , Brenda Beerntsen 3 , David Stanley 2
Affiliation  

Two cell lines were generated from larval midguts of Spodoptera frugiperda and have been 26 passaged over 50 times. The CT/BCIRL-SfMG1-0611-KZ line was established from 27 trypsinized, minced whole midgut tissues: the CT/BCIRL-SfMG-0617-KZ line from isolated 28 midgut muscle tissue (containing some residual epithelial cells). Additional midgut cultures were 29 generated from isolated epithelial cells; some passaged not more than three times, which grew 30 very slowly and survived longer than 1 year. The continuously replicating cell lines contain 31 firmly adhering cells with different morphologies, including elongated, spherical, and/or 32 rectangular. The mean diameters of these cell lines are 9.3 ± 4.0 μm (SfMG1-0611) and 9.2 ± 3.9 33 μm (SfMG-0617). Growth curves for the two lines have relatively lengthy doubling times of 73.9 34 h and 50.4 h for SfMG1-0611 and SfMG-0617, respectively. We confirmed the identity of these 35 lines using DNA amplification fingerprinting (DAF-PCR) and noted that the DNA patterns for 36 each cell line were similar to their host tissues but distinctly different from other cell lines or 37 tissues from different insect species. Amplification of genomic DNA with species-specific 38 primers yielded DNA fragments of the expected sizes and with sequences nearly identical to 39 those from the S. frugiperda genome. Both cell lines were exposed to selected Bt Cry proteins 40 with minimal impact. These lines are currently available to researchers worldwide.

中文翻译:

从秋季粘虫Spodoptera frugiperda(鳞翅目:Noctuidae)建立了两种中肠细胞系。

从草地贪夜蛾的幼虫中肠产生了两个细胞系,并且已经传代26次,历经50次。CT / BCIRL-SfMG1-0611-KZ细胞系由27个经胰蛋白酶处理的切碎的整个中肠组织建立:CT / BCIRL-SfMG-0617-KZ细胞系来自分离的28个中肠肌肉组织(包含一些残留的上皮细胞)。另外的中肠培养物是由分离的上皮细胞产生的29种。有些人传代次数不超过3次,成长非常缓慢,只有30次,存活时间超过1年。连续复制的细胞系包含31种具有不同形态的牢固粘附细胞,包括细长,球形和/或32个矩形。这些细胞系的平均直径为9.3±4.0μm(SfMG1-0611)和9.2±3.9 33μm(SfMG-0617)。两条线的生长曲线具有相对较长的倍增时间,分别为73.9 34 h和50。SfMG1-0611和SfMG-0617分别需要4小时。我们使用DNA扩增指纹图谱(DAF-PCR)确认了这35个系的身份,并注意到每个36个细胞系的DNA模式与它们的宿主组织相似,但与其他细胞系或不同昆虫物种的37个组织明显不同。用物种特异性的38个引物扩增基因组DNA产生了预期大小的DNA片段,其序列与S. frugiperda基因组的39个序列几乎相同。两种细胞系均以最小的影响暴露于所选的Bt Cry蛋白40。这些产品线目前可供全球研究人员使用。我们使用DNA扩增指纹图谱(DAF-PCR)确认了这35个系的身份,并注意到每个36个细胞系的DNA模式与它们的宿主组织相似,但与其他细胞系或不同昆虫物种的37个组织明显不同。用物种特异性的38个引物扩增基因组DNA产生了预期大小的DNA片段,其序列与S. frugiperda基因组的39个序列几乎相同。两种细胞系均以最小的影响暴露于所选的Bt Cry蛋白40。这些产品线目前可供全球研究人员使用。我们使用DNA扩增指纹图谱(DAF-PCR)确认了这35个系的身份,并注意到每个36个细胞系的DNA模式与它们的宿主组织相似,但与其他细胞系或不同昆虫物种的37个组织明显不同。用物种特异性的38个引物扩增基因组DNA产生了预期大小的DNA片段,其序列与S. frugiperda基因组的39个序列几乎相同。两种细胞系均以最小的影响暴露于所选的Bt Cry蛋白40。这些产品线目前可供全球研究人员使用。用物种特异性的38个引物扩增基因组DNA产生了预期大小的DNA片段,其序列与S. frugiperda基因组的39个序列几乎相同。两种细胞系均以最小的影响暴露于所选的Bt Cry蛋白40。这些产品线目前可供全球研究人员使用。用物种特异性的38个引物扩增基因组DNA产生了预期大小的DNA片段,其序列与S. frugiperda基因组的39个序列几乎相同。两种细胞系均以最小的影响暴露于所选的Bt Cry蛋白40。这些产品线目前可供全球研究人员使用。
更新日期:2019-11-01
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