致死性

The pig is streptococcic is the coccus that Ge Lanyang sex holds oxygen of sexual be disgusted with concurrently, it is a kind of important person animal worries mushroom of cause of disease in all, can cause a pig meningitis, arthritis, endocarditis, septicemia, pneumonic etc, can affect specific crowd and deadly.

概要： 猪链球菌是革兰阳性兼性厌氧的球菌，是一种重要的人兽共患病原菌，可引起猪脑膜炎、关节炎、心内膜炎、败血症、肺炎等，并可感染特定人群并致死。

The recombinant vaccine strain C501 had a series of biological characteristics silimar to the parent vaccine strain C500. It is likely that C501 could be adapted to develop multivalent recombinant Salmonella vaccine against both infections with S. enterica serovar Choleraesuis and toxigenic P. multocida.

本研究利用Asd+平衡致死系统的原理构建表达T+Pm保护性抗原重组猪霍乱沙门氏菌弱毒菌株C501，为进一步开发猪萎缩性鼻炎-副伤寒的双价基因工程疫苗奠定基础。

The effects of the dynamic electron beam irradiation on insects as Sitophilas Oryzae Linnaeus, Rhizopertha dominica Fabricius and Tribolium Herbst hidden in stored bulk wheat and the quality of irradiated wheat were investigated.

利用电子束动态辐照的方法对我国南方主要储粮害虫米象、谷蠹、赤拟谷盗等的辐照感应性及致死剂量进行了研究，同时对辐照后小麦的品质进行了分析。

Most people here assume the movie would have been banned by the government five years ago because of its graphic scenes of rape and murder by Japanese soldiers, including mass executions, decapitated heads, cartloads of naked corpses and a child being thrown from a window to her death.

大多数人认为这部影片在五年之前肯定要被政府禁映，因为它对日本兵犯下的强奸屠杀暴行有写实性的描述，包括集体屠杀、砍头、整车的裸体死尸等，还有把孩子扔出窗外致死的镜头。

Biological characteristics of the pathogen and the resistance of 13 cultivars of tea plant to tea brown blight were studied by means of natural infection in the field and artificial inoculation in vitro. Resistant cultivars and susceptible cultivars of tea plant were divided. And the resistance mechanism was researched tentatively. The findings are as follows: 1 Some biological characteristics of the pathogenic fungus The experiment result showed: the optimum temperature for the growth of fungus mycelium was from 24 to 27℃, the optimum temperature for sporulation ranged 22 to 30℃. Treated at 54℃ in 10 minutes, the spores didn't germinate. The optimum pH for the growth of the mycelium was 5.1～5.9, the optimum pH for sporulation ranged 5.0～6.0. Light had no much effect on the growth of fungus mycelium, but had much effect on the reproduction of the spore.

首先，研究了茶云纹叶枯病病菌的生物学特性；其次，通过田间抗性调查和室内人工接种鉴定，对 13 个茶树品种进行了抗病性鉴定；第三，在前人研究的基础上，对茶树抗病机理作了更深入的研究，结果发现： 1 病原菌的生物学特性病原菌的分生孢子萌发的最适温度范围为 24～27℃，菌丝生长的最适温度范围为 22～30℃；致死温度为 55℃；菌丝生长的最适 pH 范围为 5.1～5.9，孢子萌发的最适 pH 范围是 5.0～6.0；光照对病菌生长速度及分生孢子萌发影响不大，但对其产孢的影响很大，特别是有光照与无光照处理之间差异显著，光照有利于分生孢子的形成。

Result The red-flowered strawberry variety Pink Panda had stronger adaptability to the low temperature range of-15~-20℃ and its LT50 was only 3.03℃ higher than that of L. perenne, so, its cold resistance was near to L. perenne and it could live through the cold winter in open field in mostly area in northern China.

结果］红花草莓品种&粉红熊猫&在-15~-20℃的低温范围内有较强的适应能力，与多年生黑麦草的半致死低温相差仅为3.03℃，说明该品种的抗寒性接近多年生黑麦草，能在北方大部分地区露地安全越冬。

With the mature leaves of red-flowered strawberry variety Pink Panda and L. perenne L. as materials, their change law of relative electrical conductivity under different low-temperature treatments was studied, their each LT50 was counted by combining the Logistic equation and the cold resistance of Pink Panda was identified.

方法］以红花草莓品种&粉红熊猫&和多年生黑麦草的成熟叶片为试验材料，研究它们在不同低温处理条件下相对电导率变化规律，并配合Logistic方程计算出各自的半致死低温，鉴定&粉红熊猫&的抗寒性。

Under high temperature stress, the former is higher than the later in the speed of leaf starch grain degradation, metabolism and transformation into carbohydrate which can be transported outside, while lower in storage starch consumption in the leaf sheath, this mechanism is important to rice to spend temporarily high temperature hurt. The cell membrane thermal stability expressed by the thermal death time at 50℃ could be used as an accurate and handy physiological index to rice breeding for heat tolerance fitting individual plant selection and identification at grain-filling stage in future.

在高温胁迫处理下，叶片中淀粉粒降解代谢转化为可外运碳水化合物形式的速度是耐热品种大于不耐热品种，而消耗叶鞘中贮藏淀粉的速度则小于不耐热品种，这种机制对于水稻度过暂时性的高温热害具有重要意义。50℃热致死时间所表示的细胞膜热稳定性可作为今后水稻灌浆期耐热性育种中适合单株选择鉴定的简便、准确的生理指标。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。