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Unusual liaisons

机译：不寻常的债券

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Sex for procreation. It doesn't sound in the least bit eccentric. But how about sex between a flower and an insect? We all know that flowers depend very much on insects to perpetuate their species. It is their answer to a lack of legs or wings. Consequently, over the millennia, plants have devised the most creative ways of luring insects into the places where they keep pollen. Some flowers have thought up shapes that resemble an insect's mate, or places that are ideal for shelter, or they cunningly display colours that are hard for the six-legged species to ignore. Many plants give off scents to trick pollinators. One particular type of orchid has gone a step further and found out how to mimic the sex pheromones of some wasps. The poor wretches are tricked into thinking that the orchid is a potential sex mate and land on it to copulate. It's a SAD story really. Indeed, SAD - otherwise known as stearoly-acyl carrier protein desaturase - is the key enzyme in the synthesis of the fraudulent pheromone.
机译：性欲繁殖。听起来一点也不怪异。但是花和昆虫之间的性爱怎么样？我们都知道，花朵非常依赖昆虫来维持它们的物种。这是他们缺乏腿或翅膀的答案。因此，在整个千年中，植物已经设计出了最有创意的方法来吸引昆虫进入保持花粉的地方。有些花已经想到了类似于昆虫伴侣的形状，或者是理想的庇护所，或者它们狡猾地显示出难以被六足动物忽略的颜色。许多植物散发出气味来欺骗传粉者。一种特殊类型的兰花更进一步，发现了如何模仿某些黄蜂的性信息素。可怜的可怜人被骗了，以为兰花是潜在的性伴侣，落在兰花上交配。这真的是一个SAD故事。实际上，SAD（也称为硬脂酰基载体蛋白去饱和酶）是合成欺诈信息素的关键酶。

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