Whether with the natural infection method or the injection infection method,Sl infected significantly more Galleria hosts than Hb or Sc,and Sc caused higher larval mortality than Hb.
结果表明,无论是注射侵染还是自然侵染法,对大蜡螟幼虫个体的致死竞争能力最强的是长尾斯氏线虫,其次是小卷蛾斯氏线虫,嗜菌异小杆线虫的致死能力最弱。
Effects of ionizing irradiation of γ ray on mortality and growth of one year-old Pacific oysters (Crassotrea gigas) were studied.
电离辐射的生物学效应包括高剂量条件下的致死、致突、致畸效应和低剂量条件下的刺激效应。
Expression of lethal gene mRNA on placenta villi in patients with spontaneous abortion;
自然流产患者绒毛组织中致死基因mRNA的表达
Research on the lethal reason of radiation to Escherichia coli and Lactobacillus;
大肠杆菌及乳酸杆菌的辐射致死机理初探
In order to solve this problem,Saccharomyces cerevisiae was chosen as the object to reveal the effects of three ultrasonic parameters on the inactivation of yeast cells.
文中以酿酒酵母为对象,考察超声杀菌处理效果的三个主要影响因素(即超声功率、时间和脉冲占空比)对细胞致死作用的影响规律,并采用选择性平板法对超声引起的细胞亚致死效应进行检测,采用TEM对细胞超微结构变化进行检测。
The process can be divided into two stages based on the rate of inactivation: the rate of inactivation was slow at the early stage and increased sharply at the latter stage.
coli有明显的致死作用,按照致死速率的快慢,整个过程可分为两个阶段:缓慢死亡期和迅速死亡期。
Study on the lethality rate of yeast 1254 and screening for high producing chromium-riched yeast strain by ultraviolet radiation;
紫外线诱变酵母1254的致死率及高产富铬酵母菌选育研究
The mutagen amount used is 1%, when the mutafacient time is 50 minutes, this strain lethality rate is 75%.
以其作为出发株,得出了以硫酸二乙酯(DES)诱变该株的致死率曲线,诱变剂用量为1%、诱变时间为50min时,该株的致死率达到75%。
Result proves that ultrasound frequency is higher in the same time, lethality rate increases with the increase of radialization time on the same frequency, at the same time, its physiological character changes.
试验结果表明,在相同的时间内,超声波频率越高对试验菌株的致死率越高;同一频率,超声波辐射时间增加也可使试验菌株的致死率增高,同时经过诱变处理后的菌株其生理生化特性也有变化。
coli,sterilizing mechanism of needle high voltage electrostatic field on E.
采用直流芒刺高压静电场对食品中主要致病菌大肠杆菌的菌液进行处理,测定了电导率、pH、温度变化,以及大肠杆菌细胞的蛋白质泄露和核酸溢出的情况,并根据大肠杆菌生活微环境的变化对致死机理做了初步探讨。