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新型养蚕用烟熏消毒剂神农1号的研究 总被引：2，自引：1，他引：1
新型烟熏消毒剂神农１号对病毒多角体、真菌分生孢子、牙包和营养体、微孢子虫也子等蚕主要病原体具有强力的杀灭作用,并且药效稳定、消毒简便安全,腐蚀性低,对蚕体生理和茧质无不良影响。神农１号可用于蚕室蚕具,蚕体蚕座、养蚕贮桑环境和中等的消毒农村中试取得防病、增产、增收的效果,是一只符合当前养蚕生产消毒防病需求,具有应用价值的高水平养蚕用消毒药剂。 相似文献
73.
Needle drill resistance measurement devices (NDRMDs) are often used during tree hazard assessment campaigns to detect and measure the extent of wood decay and other defects of wood in trees, despite of the possibility of transmission of potentially pathogenic microbial inoculum from tree to tree through unclean needles. Here, we describe a disposable connectable to NDRMDs through an adapter and we report on its efficacy not only at disinfecting the needle, thus reducing the likelihood of disease transmission, but also at collecting wood samples for bioptic purposes, whose subsequent analysis may be pivotal for, or allow to refine, the prognosis. The complete efficacy of the disposable at disinfecting the needle was determined through three different experiments conducted under controlled conditions in vitro and in vivo using both wood decay fungi and the canker stain pathogen of plane trees, and under field conditions. The disposable combined with NDRMD proved to be as effective as state-of-the-art drilling methods at collecting wood samples for subsequent PCR-based molecular diagnosis of wood decay fungi (Fisher’s exact test for count data; P = 4.846 × 10−7) as determined through comparative sampling and diagnostic assays on 42 trees. The disposable allows not only for a routinely, complete and fully standardized disinfection of the needle, but also provides the opportunity to automatically and efficiently collect bioptic wood samples for subsequent phytopathological analyses. 相似文献
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组培实验室常见消毒方法优劣比较 总被引：2，自引：0，他引：2
通过介绍比较组培实验室环境消毒和外植体消毒几种常见方法的原理、注意事项及优缺点等,认为用中草药及新洁尔灭进行环境消毒更为低毒友好;对外植体进行消毒时,综合考量,次氯酸钠比氯化汞更为合适。 相似文献
76.
Peracetic acid (PAA) products are being introduced to aquaculture as sustainable disinfectants. Two strategies are used to apply PAA: high dose pulse applications, or low dose continuous application. In the present study, their impacts on fish health and water quality were investigated in triplicate flow-through tanks stocked with rainbow trout. The gentler and shorter water cortisol increase measured along twice-per-week pulse applications of 1 mg L−1 PAA indicated a progressive adaptation of fish. In contrast, the continuous application of 0.2 mg L−1 PAA caused no stress to fish. Meanwhile, no mortality and no impact on growth or innate cellular immunity were observed. The pulse applications restricted biofilm formation, and partially inhibited nitrification. Additionally, the highest oxygen concentration and stable pH were observed. In contrast, the continuous application promoted biofilm formation, and caused a pH increase and intermediate oxygen concentration. The contrast was probably due to different susceptibility of microbes to PAA-induced oxidative stress. To summarize, pulse PAA applications cause minor stress in fish, but have advantages over continuous application by ensuring better water quality. 相似文献
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[目的]建立小叶朴组织培养初代无菌体系。[方法]通过对不同消毒剂及消毒时间的对比,筛选出能够有效控制小叶朴初代培养的污染率,且不抑制小叶朴茎段萌发的消毒处理。[结果]小叶朴茎段经70%乙醇消毒30 s 2次,再用氯化汞消毒6 min所得茎段污染率低,萌发率高。对于后期出现的真菌污染采用多菌灵作为消毒剂和添加剂,用200 mg/L多菌灵浸泡外植体60 min能有效地控制污染,且具有较高的萌发率。在培养基中添加200 mg/L多菌灵也能抑制真菌污染,且效果优于多菌灵浸泡处理。[结论]建立了小叶朴组织培养无菌体系,为小叶朴组培苗的增殖和生根提供参考。 相似文献
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80.