They were sequenced and compared with other isolates from different areas of the world and constructed the phylogenetic tree.

用PCR的方法擴增福建 5株樣品的Env及LTR區(qū)基因黄色网站欧美内射，測序后與來自世界各地的代表株進行比較免费美女黄片、分析chengren视频在线观看，構建進化樹国产伦精品一区二区三区视频女。

In addition, the 8 genes in every strain of isolates were not the same sub-lineague in the phylogenic trees, indicating that they might be the products of natural reassortment occurring among different sub-lineages.

所分離毒株中每個毒株的8個基因国产男女超爽视频免费播放，在遺傳進化樹上的分支不具有統(tǒng)一性久久综激情丁香开心婷婷，說明此3個毒株可能為不同基因亞系間發(fā)生自然重排的產物。

Based on P1 amino acid sequence, the PVY phylogenic tree was established and the isolates of PVY were clustered into many branches.

依據P1蛋白氨基酸序列建立了PVY系統(tǒng)關系樹并對PVY進行了類型分析国产羞羞视频一区免费看。

Over the first 4 years of PROTEKT US, penicillin and erythromycin resistance among pneumococcal isolates has remained high.

PROTEKT頭4年的研究中久草2，青霉素和紅霉素的耐藥率仍然很高。

Three infectious bronchitis virus isolates named as Q1, J2 and T3 were isolated from proventricular tissue taken from vaccinated chicken flocks in China.

從我國接種過傳染性支氣管炎疫苗的幼雞群的腺胃組織中分離得到三個傳染性支氣管炎毒株Q1AA不卡免费视频、J2和T3性欧美激情在线观看，并對它們的部分生物學特性進行研究。

7Kb of these isolates were amplified by using RT-PCR The amplified DNA were then cloned and sequenced The analysis of the sequence data further confirmed that IBV was the pathogenic agent of the infectious disease associated with proventricular lesion

利用擴增片段兩端的EcoRⅠ和BamHⅠ位點將擴增片段克隆進pBluescripⅡKS載體日韩电影成人免费观看网站在线观看，轉化大腸桿菌JM10997干最新网址，挑選白色菌落并用PCR方法對插入片段進行鑒定。用雙脫氧終止法對擴增的片段進行測序并與GenBank公開的序列進行比較分析91艹在线视频网。結果進一步證實IBV是導致此種野外發(fā)生的腺胃相關疾病的病原人人操人人揉人人爽。

Genes for resistance to leaf rust in twenty-four important wheat cultivars from six wheat breeding institutes or companies were analyzed using fourteen isolates of Puccinia triticina.

選用14個具有不同毒性基因組合的葉銹菌系，推導分析了來自山西省6個育種單位和種子部門的24個重要小麥品種所攜帶的抗葉銹病基因狀況日韩欧美一区中文字母视频。

Strain LT6 exhibited significantly different antagonistic activities against different species of Pythium or different isolates of the same species.

腐霉菌株對由LT6產生的抗生素吩嗪-1-羧酸的敏感性存在變異超碰人人操干，被測的54株腐霉，當PCA濃度為7.0μg/mL時在线看羞羞视频，敏感的為28株A片免费视频在线观看大全，高抗的為15株。

It showed the widest inhibition zone against Pythium ultimum (7.5mm),while it was lest effective to unknown species. The size of inhibition zones on those eleven tested isolates were all less than 3.0 mm.

用不同的培養(yǎng)液培養(yǎng)LT6所得的代謝物久久久久久免费大片，在相同濃度下欧美久久迷奸网站视频最新，對同一腐霉菌菌絲體生長的抑制效果不同，培養(yǎng)液1/5 TSB和NB明顯強于KMB国内大量愉拍人妻精品视频。

To understand whether there is gene reassortment recently, we also analyzed the evolutionary relationship of these isolates. It appears that no HA/NA reassortment was found.

想了解這段時間內是否出現基因重組精品三级无码一区，我們也分析了這些分離株NA及HA基因的演化關系，結果顯示這段時間內的A型流感病毒在HA及NA基因之間沒有出現互換的現象。