簇

The cloning of corresponding biosynthetic gene clusters is essential for new drug discovery and yield improvement by metabolic engineering.

微生物产生众多结构和生物活性多样的次级代谢产物，其生物合成基因簇的克隆是药物创新和产量提高的必要前提。

Cloning of corresponding biosynthetic gene clusters is essential for new drug discovery and yield improvement by metabolic engineering.

微生物产生众多结构和生物活性多样的次级代谢产物，其生物合成基因簇的克隆是药物创新和产量提高的必要前提。

All the results were essential for the cloning of cytosinpeptidemycin biosynthetic genes and illustrating the total biosynthesis.

以上工作对克隆获得完整的嘧肽霉素生物合成基因簇、研究嘧肽霉素的生物合成途径具有重要意义。

Female flowers solitary or several and male mixed in axillary cluster; pedicels 2-6 cm; calyx yellow-green, 6-lobed; sepals slightly thick, biseriate, outer obovate or subspatulate, ovate-elliptic, 6-7 × 3-4 mm, inner shorter, obovate, ca. 5 mm, with purple stripes; disk absent; pistil depressed globose, ca. 2 × 2.7 mm, 3-locular; styles 3, bifid at apex, arms recurved.

雌花单生或数个雌花和雄花在腋生簇束里混生；花梗2-6厘米；花萼黄绿色，6裂；萼片稍厚， 2列，外部倒卵形或近匙形，卵状椭圆形， 6-7 * 3-4 毫米，内部的短，倒卵形，长约5毫米，有紫色条纹；花盘无；雌蕊扁球形，约2×2.7毫米，3室；花柱3，在先端2裂，裂片下弯。

Flowers bisexual or seldom unisexual, solitary or several in axillary clusters, usually bracteate,(4- or)5(or 6)-merous.

很少单性的花两性或，在腋生簇束内单生或数个，通常具苞片，4-或(或6)瓣的5。

Leaf venation usually longitudinal, sometimes pinnate and inflorescences then brushlike; floral units sessile, variously arranged in spikes or clusters.

叶脉通常纵裂，有时羽状和花序然后刷子状；花单位无梗，各式地排列在穗状花序或簇生族。 2 Melaleuca 白千层属

Type genus of the Bryaceae: mosses distinguished by mostly erect and tufted gametophytes and symmetrical short-necked capsules.

真藓科的模式属；一种以其大多数直且成簇状的配偶体和对称的短颈蒴果为特征的苔藓。

Bananas, for example, are subject to two diseases—bunchy top disease and bacterial wilt disease—which can ruin 80% of a harvest.

以香蕉为例，它正遭受两种疾病的折磨——蕉麻簇顶病和细菌性枯萎病，这会毁掉80%的收成。

In chapter 1, the basic characters of cagelike...

第一章简单介绍了笼状纳米结构的基本知识，包括碳团簇、碳纳米管、BN纳米管等笼状物的结构、性能、制备及有关的应用。

Inflorescences, calyces, petals, ovary, and other parts usually with stellate, squamate, fascicled or free-standing hairs.

花序，花萼，花瓣，子房，和其它部位通常有星状，鳞片状，簇生或直立的毛花两性，辐射对称，旋转。

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。