【编辑推荐】为解决传统显微镜检测法(FMM)在蚕业检疫中效率低、主观性强的问题,研究人员开发了靶向N. bombycis SSU rRNA基因的探针qPCR技术,灵敏度达15 fg基因组DNA,可提前13-14天检出病原体,在3616份母蛾样本中阳性符合率达93.82%,显著提升蚕种检疫效率。
家蚕感染微孢子虫N. bombycis后,Bmupp1基因通过替代剪接调控宿主抗性。研究发现Bmupp1-X2和X4在胞质中具有尿苷磷酸化酶活性,并抑制病原体增殖,而X1和X3无此功能。通过mini-gene和RNA干扰实验证实,剪接因子SC35剂量依赖性调控Bmupp1的剪接模式,其作用在感染早期和 ...
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