查询词典 sterile

MATERIALS: The postembryonic pluripotent stem cells were extracted from thighbone and shinbone of 22-week old fetuses under sterile circumstance.

材料：取22周龄左右胎儿股骨和胫骨骨髓分离出胚胎后亚全能干细胞。以雌性成年SCID鼠作为干细胞移植的受体。

Methods A strain of Propionibacterium acnes from rumen fluid of health cow with permanent rumen fistula under sterile condition was isolated by segregation procedure of anaerobic bacterium and specific medium SLB, and identified by extraction of the genome DNA of isolation bacterium, clone of the 16S rRNA gene, and sequencing of the strain.

无菌采取装有瘤胃瘘奶牛的瘤胃液，按照厌氧菌分离步骤，通过丙酸生成菌株的特异性培养基SLB进行筛选，提取分离菌的基因组DNA，克隆其16S rRNA基因，进行序列测定，分离出一株痤疮丙酸杆菌。

In our laboratory a chemically regulatable male sterile expression system had been constructed based on the antisense actin strategy and putatively transgenic tobacco plants with Kan-resistance had been obtained.

本实验室在自行研究成功的反义肌动蛋白雄性不育策略的基础上，构建成由铜调控的在绒毡层细胞特异表达anti-actin基因的植物表达系统，转化烟草获得由kan抗性筛选的烟草植株。

Spikelets pendulous on long, wiry inflorescence branches and curved pedicels, 2–7 flowered, followed by a sterile floret; rachilla internodes disarticulating, ca. 1/2 as long as florets.

小穗在长，象金属丝的花序分部并且弄弯的花梗，2-7花下垂，随后有一不育的小花；节间脱节的小穗轴，大约1/2的倍于小花。

Spikelets with 2–7 florets, terminal sterile. Glumes absent to 1(–3). Rachilla extending beyond uppermost floret, disarticulating just below fertile florets.

颖片无到1(-3)。 Rachilla在最重要的小花以外延长，只在肥沃的小花下脱节。

Inflorescence a racemose panicle, initially terminal to leafy shoot; spikelets 3–7, 2.5–4.3 cm, rachilla internodes 3–4 mm, white-gray setose, apex densely white-gray ciliate; florets 3–7, terminal one sterile.

花序一种总状的圆锥花序，对叶状枝最初顶生；小穗3-7，2.5-4.3厘米，小穗轴节间3-4毫米，白色灰色具刚毛，浓密白色灰色具缘毛的先端；小花3-7，顶生的那个不育。

Female flowers: perianth tube base adnate to ovary; staminode-body cupular, inconspicuously radiately 6-ribbed; anthers sterile; ovary inferior; placentas 10-12, irregular; integument 1; gynostegium robust.

雌花： 花被筒基部贴生于子房；退化雄蕊身体杯状，难以觉察辐射状6肋；花药不育；子房下位胎座10-12，不规则；珠被1；合蕊冠坚固。

Objective To study the socially productive behaviour on sterile male of Rattus norvegicus.

目的研究褐家鼠不育雄性的社群生殖行为。

Meilan also is attempting to find ways to produce trees that are reproductively sterile so they are unable to transfer introduced traits to wild trees.

米兰同时也在试图寻找方法培育无繁殖能力的树以阻止它们将引入的特性传给野生树木。

It is shown that the two strains are gramnegative bacteria, which are short rhabditiform, of sterile gemma, and have a layer of viscous capsule.

结果表明：这两菌株均为革兰氏阴性菌，短杆状，不产芽孢，有一层粘的荚膜。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。