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The smell of the sea

机译：海的味道

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The chances a cloud will remind you of the ocean are slim. Yet without oceans, there would be fewer clouds drifting above our heads. This is because these huge stretches of sea are full of tiny creatures that produce a gas known as dimethyl sulphide, or DMS, which under certain circumstances has the faculty of initiating the beginnings of a cloud. These creatures - algae or bacteria - do not synthesize DMS for sculpting clouds; DMS happens to be the side product of a metabolite known as dimethylsulfoniopropionate, or DMSP, that phytoplankton probably require for buoyancy or protection, or perhaps even both. The air-borne DMS is responsible for the sometimes unpleasant pungent smell that is characteristic of the sea. The enzyme that is at the heart of this distinct sea scent was recently discovered in the marine phytoplankton Emiliania huxleyi and baptised DMSP lyase 1 - an algal enzyme that cleaves DMSP and in so doing releases the perfumed DMS into the earth's atmosphere.
机译：乌云使您想起海洋的机会微乎其微。但是如果没有海洋，云层就会越少越过我们的头顶。这是因为这些巨大的海域到处都是微小的生物，它们产生的气体称为二甲基硫醚，即DMS，在某些情况下具有启动云团起源的能力。这些生物-藻类或细菌-不会合成DMS来雕刻云。 DMS恰好是一种被称为浮游植物可能需要浮力或保护或什至两者兼有的代谢产物，称为二甲基磺丙酸二甲酯（DMSP）的副产物。空气中的DMS有时会造成令人不快的刺鼻气味，这是海洋的特征。最近，在海洋浮游植物Emiliania huxleyi和受浸的DMSP裂解酶1中发现了这种独特的海洋气味的核心酶，该酶是一种能裂解DMSP的藻类酶，通过这种酶将散发香味的DMS释放到地球大气中。

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