排序方式： 共有5条查询结果，搜索用时 379 毫秒
1
1.
为研究布鲁氏菌LPS对巨噬细胞中NLRP3炎症小体的影响,本试验提取布鲁氏菌2308、RB51和△WbkA的LPS,以不同浓度与小鼠巨噬细胞相互作用,荧光定量PCR检测其对NLRP3、ASC、Caspase1、IL1-β、IL18转录水平的影响。结果显示RB51LPS和△WbkA LPS上调NLRP3炎症小体相关基因的转录水平,且呈浓度依赖性,而浓度对2308LPS调节NLRP3炎症小体相关基因转录的作用不大;且同一浓度下,RB51LPS和2308LPS比△WbkA LPS更好的调节Caspase1、IL1-β、IL18的转录水平。 相似文献
2.
为挖掘“商薯19”的增产潜力,以商洛市农户常用的竖插法为对照,采用单株水平扦插法、双株水平扦插法栽培“商薯19”。结果发现双株水平扦插法总产量最高(3 037.81 kg/667 m2),与竖插法产量(1 838.7 kg/667 m2)差异显著(P<0.05)。进一步统计不同扦插方式的大、中薯数量、产量及大、中薯率发现,双株水平扦插法主要通过增加大薯产量和中薯数量来达到增产效果。双株水平扦插法能够同时适应生产淀粉和鲜食的需求,有必要进一步试验、示范和推广。 相似文献
3.
首次在商洛市3个田块中调查发现甘薯腐烂茎线虫病感染,感染率分别为5.80%、5.93%和4.98%,病情指数分别为2.72、3.28和2.74。实验室形态学观察和病原线虫,rDNA-ITS区PCR检测进一步确认了甘薯腐烂茎线虫的存在。跨地区购买易感作物种苗、易感作物轮作、种薯带病原线虫可能是商洛市发生甘薯腐烂茎线虫病的主要原因。生产中应提高认识,调整茬口;选择抗病品种,提倡高剪苗技术;加强检疫,严禁从疫区购买种苗;合理使用杀线虫农药。积极采取预防措施来遏制甘薯腐烂茎线虫病在商洛市的传播和蔓延。 相似文献
4.
In order to study the defensive role and action mechanism of antibacterial peptide NK-Lysin during body reaction, when pathogen infect animal body. This study detected the expression of NK-Lysin induced by different concentrations of lipopolysaccharide(LPS) and in different immune organs by Real-time fluorescence quantitative PCR, and explored the generation and response of sheep antimicrobial peptide NK-Lysin in immune organs. The cloning vector of target gene NK-Lysin and reference gene GAPDH were constructed, drew the standard curve and detected the expression of NK-Lysin. The results showed that inducing with the LPS concentrations of 0.01, 0.1, 1 and 10 μg/mL, respectively,the expression of NK-Lysin reached the maximum within 8 h. There was no positive correlation between the expression of NK-Lysin and concentration of LPS. The expression of NK-Lysin mRNA had varying degrees in pre-shoulder lymph, spleen and blood. The expression in spleen was extremely significantly different compared with other organs(P＜0.01). Immune organs could express the antimicrobial peptide NK-Lysin in a relatively short time, and NK-Lysin participated in the body’s innate immunes responses. 相似文献
5.
以商洛市主栽品种黑威15为对照,分离鉴定两株秦岭野生黑木耳菌株,并进行出耳试验,考察两株秦岭野生黑木耳菌株特性,为商洛市黑木耳品种选育、改良提供新的种质资源。结果：经分子生物学鉴定,采集的两株秦岭野生黑木耳菌株均为木耳属,黑木耳;出耳试验结果,丹凤野生黑木耳菌株比对照黑威15早熟、产量高、抗杂抗逆性强、耐高温,有望成为优良黑木耳菌株,缺点是颜色偏黄;山阳野生黑木耳菌株比对照黑威15产量低、抗杂抗逆性弱、不耐大水和高温,但其具有耳芽形成快、早、整齐,早熟,颜色黑的优点,可以用来作为杂交选育亲本。 相似文献
1