美国科学60秒 SSS 2013-08-16
时间：2018-12-24 作者：英语课 分类：Scientific American(八)月
英语课
In labs, bacteria may swim freely, but out in the world, including our bodies, bacteria often exists packed together, dense 1 communities called biofilms, and these configurations 2 can help them cause illness.
Finding clues about how such bacteria group together could therefore lead better therapy to prevent infections and fight diseases. With that idea in mind, researchers looked at biofilms assembling bacteria notorious for causing infections in the urethra track and lungs of patients with ***. They scoured 3 the genomes of different strains of the bacteria for genes 4 that affect movement, and particular genetic 5 mutations make the bacteria super-strong swimmers. That talent enables them to easily move away from each other, a phenomenon called hyper-swimming. Mutations thus also make it harder for bacteria to stick together into the biofilms associated with illness.
The study is in the journal cell report. A better understanding of how to keep bacteria apart could lead techniques for stopping biofilm formation which could translate into treatment for those diseases that depend on bacteria really getting stuck on each other.
Finding clues about how such bacteria group together could therefore lead better therapy to prevent infections and fight diseases. With that idea in mind, researchers looked at biofilms assembling bacteria notorious for causing infections in the urethra track and lungs of patients with ***. They scoured 3 the genomes of different strains of the bacteria for genes 4 that affect movement, and particular genetic 5 mutations make the bacteria super-strong swimmers. That talent enables them to easily move away from each other, a phenomenon called hyper-swimming. Mutations thus also make it harder for bacteria to stick together into the biofilms associated with illness.
The study is in the journal cell report. A better understanding of how to keep bacteria apart could lead techniques for stopping biofilm formation which could translate into treatment for those diseases that depend on bacteria really getting stuck on each other.
1 dense
a.密集的，稠密的，浓密的；密度大的
- The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
- The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。
2 configurations
n.[化学]结构( configuration的名词复数 )；构造；（计算机的）配置；构形（原子在分子中的相对空间位置）
- Such configurations, obtained theoretically by calculation, are called models of a star. 通过理论计算得到的恒星结构称为恒星模型。 来自辞典例句
- The other two configurations have overriding advantages for special applications. 其它两种接法对特殊应用具有突出的优点。 来自辞典例句
3 scoured
走遍（某地）搜寻（人或物）( scour的过去式和过去分词 )； （用力）刷； 擦净； 擦亮
- We scoured the area for somewhere to pitch our tent. 我们四处查看，想找一个搭帐篷的地方。
- The torrents scoured out a channel down the hill side. 急流沿着山腰冲刷出一条水沟。