In a bid to overcome the drawbacks of existing biofuels, researchers have engineered a bacterium that can convert a form of raw plant biomass directly into clean, road-ready diesel.
为了克服现有生物燃料减少所带来的威胁，科研人员已经构建了一种能够将天然植物生物量直接转变为清洁的柴油的工程菌，而他们产生的柴油可供车辆直接使用。
As potassium levels decline, a membrane protein on the bacterium stimulates a cascade of gene activity that signals neighboring cells to form a quorum.
如钾水平下降，膜蛋白在细菌刺激一连串的基因活性的子细胞信号形成的人数。
Subsequently, the blood will form a barrier to prevent invasion of other bacterium.
随后，血液就会形成一道屏障，阻止其他细菌入侵。
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