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After inoculation with Phytophthora parasitica Var nicotianae, the activities of these enzymes in PDJ-treated tobacco were higher than water-treated tobacco.

接种黑胫病菌后，PDJ处理的烟草PAL、CAT和POD酶活性都显著高于不处理烟草。

After inoculation with Phytophthora parasitica Var nicotianae, the activities of these enzymes in PDJ-treated tobacco were higher tha...

PDJ处理同样诱导了烟草体内某些病程相关蛋白的表达，并且在黑胫病菌侵染后表达增强，这些结果表明PDJ处理后烟草酶活性的变化和病程相关蛋白的表达可能与其诱发烟草幼苗系统获得抗性的表现有关。

The test results suggested that the metalaxyl-resistant strains of Phytophthora parasitica var. nicotianae had quite high level of fitness on their latent period, infection frequency, disease index and lesion area.

对甲霜灵敏感性不同的烟草黑胫病菌适合度测定结果表明，抗性菌株在潜伏期、侵染率、病情指数和病斑面积等方面均具有相当高的适合度水平。

To control tobacco black shank disease rationally, reduce resistance, 34 strains of Phytophthora parasitica var. nicotianae were isolated from 6 region of Yunnan province and all isolates were determined their resistance to metalaxyl. The results indicated that of all tested isolates, there were 12 high resistance, 5 middle resistance and 17 low resistance isolates respectively.

为合理防治烟草黑胫病，减少抗药性产生，从云南省6个地州分离烟草黑胫病菌菌株34个，就分离菌株对甲霜灵的抗药性进行了测定，结果表明，供试34个菌株中中高抗菌株12个，中抗菌株比例较高5个，低抗菌株17个。

In order to evaluate resistance risk of Phytophthora parasitica var. nicotianae to metalaxyl, the metalaxyl-sensitive strain 240 and metalaxyl-resistant strain191 were studied. The results showed that the mutation rate of metalaxyl-sensitive strain 240 was 7.0×10–5 on CA medium with metalaxyl concentration of 10μg/mL.

为了评估烟草黑胫病菌对甲霜灵的抗药性风险，以对甲霜灵敏感和高抗的烟草黑胫病菌240和191为出发菌株，进行了抗性突变频率测定、抗性诱变、抗性水平测定、遗传稳定性、生长速率、致病性测定和适合度等研究。

From Chuxiong Shuangbai was the highest metalaxyl resistant isolate,and the lowest resistance isolate 218# come from Weishanof Dali. The EC50 of 34 Phytophthora parasitica var. nicotianae isolates against metalaxyl was 0.0148μg/ml in average, was in the range of 0~0.053μg/ml.

分离自楚雄双柏县雨龙乡的113#菌株抗药性最强，来自大理巍山县大仓镇的218#菌株抗药性最低。34株烟草黑胫病菌菌株对甲霜灵的EC50值平均为0.0148μg/ml，范围在0~0.053μg/ml。

Harpin〓 can induce plant resistance to TMV and Phytophthora parasitica var. nicotianae.

水稻白叶枯病菌过敏性反应激发子harpin〓能够诱导Xanthi烟草抗TMV和烟草黑胫病的侵染。

Endophtic bacteria strains were isolated from healthy tobaccos from heavy disease plots in Yongzhou, Ningxiang and Liuyang. By Laboratory dual culture test, seventeen actinomycetes to Phytophthora parasitica var. nicotianae were screened.

同时在湖南永州、浏阳和宁乡等地发病重的田块采集健株共分离到内生细菌120株，经室内平皿对峙培养法测定，其中8株内生细菌菌株在室内有较强的拮抗作用。

By inoculated to tobacco plants, six strains could be re-isolated from the inoculated plants, indicating that they were endophytic bacteria in tobacco. Culture these eight bacteria and Phytophthora parasitica var. nicotianae together, the result showed four endophytic bacteria YN-55, NN-3, YN-4 and YN-10 have the best antagonistic effects.

将这8株内生细菌与烟草黑胫病菌共培，进一步测定拮抗效果结果显示YN-55、NN-3、YN-4和YN-10 4株拮抗效果最好，均在66％以上，并且这4种细菌均对孢子囊的产生有较强的抑制作用，而菌株发酵液对孢子囊的产生的抑制作用不明显。

Pediculus humanus var. corporis.

图1：体虱的显微照片。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。