The homologies between the Leishmania isolates in China and the reference strain of WHO were analysed on the basis of determination of a repetitive sequence of Leishmania. The repetitive DNA fragments of the Leishmania isolates were amplified by PCR and their sequences were determined by using the PCR products.

目的 通過分析和比較我國利什曼原蟲分離株與相應(yīng)的利什曼原蟲世界衛(wèi)生組織參照株在一種DNA重復(fù)序列上的同源性以考察這一DNA重復(fù)序列應(yīng)用于鑒別我國利什曼原蟲的價(jià)值。

Isolates from different geographic areas and even some isolates in the same area showed considerable amount of DNA polymorph ism.

不同地區(qū)的分離株甚至同一地區(qū)的某些分離株存在相當(dāng)大的DNA多態(tài)性性交欧美网址。

Since 1995, more than 100 virus isolates were obtained from proventriculus of the chickens infected with TP. 13 isolates were identified by EM observation and chicken embryo propagation as IBV.

1995年以來国产精品色区第12页，先后從臨床上表現(xiàn)TP的病雞腺胃組織內(nèi)分離到100多株病毒，選擇其中的13株進(jìn)行了電鏡觀察和雞胚傳代国产迷晕漂亮大学生久久999，初步鑒定為IBV特级毛片全部免费播放在线。

Further comparison of the vascular bundle sheath sclerenchyma cell deterioration in separate plants infected with an additional four CTV isolates, CTV-2, T-TX8, T-TX9 and T-TX24 showed that there were significant differences in scleranchyma cell deterioration in principal lateral vein, midvein, petiole, and healthy control with all four CTV isolates (P=0.000 1, F=80.60, df= 47). Healthy plants had no such sclerenchyma cell deterioration.

CTV-2、T-TX8www.av福利.com、T-TX9 AⅤ精品视频在线观看、T-TX24等另外4個(gè)柑橘速衰病毒株系分別侵染后，主支脈99r国产在线、中脈99XXOO视频在线永久免费观看、葉柄維管束鞘厚壁細(xì)胞的衰退與對(duì)照差異顯著(P=0.000 1， F=80.60先峰资源网， df= 4另类小说另类图片视频一区，7)，健康植株厚壁細(xì)胞沒有退化一区二区三区精品视频免费播放。

While nine Korean isolates were similar to the Japanese isolate red sea bream iridovirus, one isolate was distinct from other iridovirus isolates.

而韓國真鯛虹彩病毒的10個(gè)株系和日本株系比較相似午夜在线视频，其中一個(gè)病毒株系和其他株系明顯有別。

Since 1997, the goose flocks in some regions of South and East China have experienced severe outbreaks of Newcastle disease virus infection. The results of the in vitro tests indicate that the goose isolates have stronger ability to induce syncytium formation, when compared to chicken and pigeon isolates.

1997年以來我國華南和華東部分地區(qū)發(fā)生了由新城疫病毒(Newcastle disease virus黄色毛片免费看永久， NDV)導(dǎo)致的鵝的臨診疾病，而且發(fā)現(xiàn)鵝源NDV在體外具有比雞源和鴿源毒株更強(qiáng)的致細(xì)胞融合的能力视频日韩午夜在线播放网站免费，這表明NDV的抗原可能發(fā)生了變異91后入国产在线。

And, among the antagonistic isolates 9 isolates were observed to inhibit the growth of Fusarium oxysporium, a causal agent of banana wilt, and the inhibition rates were from 80% to 100%. According to the fundamental biological characteristics, the 9 endophytic bacteria belong to the genera, Acinetobacter, Bacillus, Brevibacterium, Alcatigenes and Burkholderia. The tests showed that the hyphae of pathogen had different degrees of tumefaction and rupture.

初步測(cè)定結(jié)果表明，這些分離物的基礎(chǔ)生物學(xué)特性的分類地位初步歸屬為不動(dòng)桿菌屬97.riav、芽孢桿菌屬美女a视频网站、短桿菌屬、產(chǎn)堿桿菌屬和伯克霍爾德菌屬細(xì)菌国产综合91。9份分離物與病原真菌菌絲體對(duì)峙培養(yǎng)鏡檢結(jié)果表明人视频在线看免费，供試的9種病原真菌菌絲體均出現(xiàn)不同程度的腫脹與斷裂。

The oxygen uptake activity using Triton X- 100 as substrate in a resting cell experiment demonstrated that one of the isolates, P nitroreducens TX1, showed the highest activity to transform Triton X-lOO, 528 nmole/min/g cell wet weight among the isolates. The generation time of strain TX1 was only 1.2 h by using 0.5% of Triton X-100 as sole carbon source in MSB medium. Furthermore, this strain could even grow on the Triton X-l00 at a concentration of IO%-2O%.

本研究藉由測(cè)定各菌株分解TritonX-100時(shí)的氧氣消耗活性發(fā)現(xiàn)国产无码色色AV，編號(hào)82.10.6之菌株有AA级黄片会动图免费看，經(jīng)鑒定并命名為P.nitroreducens TX1亚洲国产综合精品一区二区，每克濕重的菌株具有528 nmole /min的高耗氧活性，尤其狂野欧美粗黑硬大，該菌株以0.5%的TritonX-100培養(yǎng)時(shí)亚洲免费观看黄色A级毛片，世代時(shí)間僅為1.2小時(shí)，即使在10%-20%的Triton-X-100的培養(yǎng)環(huán)境中亦能維持生長(zhǎng)一级女家教，在過去相關(guān)研究中均尚未發(fā)表有此一特殊之生長(zhǎng)特性色黄色网站。

Seven major bacterial isolates were obtained and purified. Their 16S rRNA genes were amplified by PCR for sequencing and their identities were determined with homology comparisons. Five of the seven isolates belong to Actinomycetales including Kocuria KD139, Rhodococcus KD140, Rhodococcus KD142, Arthrobacter KD230, and Arthrobacter KD232; one is classified as Bacillus d KD178; and another one as Stenotrophomonas KD237. The phylogenetic tree was also constructed based on the analysis of 16S rRNA gene sequences.

通過對(duì)分離菌株的16S rRNA基因序列進(jìn)行分析，發(fā)現(xiàn)其中5株細(xì)菌分別屬于放線菌目的考克氏菌屬(KD139)国产巨乳美女中文字幕毛片在线、紅球菌屬(KD140和KD142)和節(jié)桿菌屬(KD230和KD232)在线观看精品自拍， 1株細(xì)菌屬于桿菌目的芽胞桿菌d屬(KD178)，另外1株細(xì)菌屬于黃色單孢菌目的寡食單胞菌屬(KD237)国产一级午夜福利；同時(shí)我們構(gòu)建了系統(tǒng)進(jìn)化樹九九精品热全在这，確定分離菌株的相對(duì)進(jìn)化地位。

And genetic analysis and mapping of avirulence genes from the cross between M. grisea isolates were also studied for aiding to the positional cloning and further functional studies of avirulence genes.A total of 482 isolates were collected from 13 areas in China. Each isolate was subjected to DNA fingerprint analysis using pot2-rep-PCR.

同時(shí)丝袜人妻欧美，通過獲得與稻瘟病菌無毒基因緊密連鎖的分子標(biāo)記欧美日韩三区二区三区二区，不僅可利用該無毒基因的標(biāo)記作探針，研究該無毒基因在自然群體中的分布情況丁香婷婷五月天综合，揭示病菌群體毒性組成和變異特點(diǎn)在线观看国产技师自拍网站免费视频，且為進(jìn)一步物理作圖法克隆該無毒基因奠定基礎(chǔ)。