Bacterial morphology: why have different shapes?
Bacterial morphology: why have different shapes?
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DOI：
10.1016/j.mib.2007.09.009
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发表时间：
2007-12
影响因子：
5.4
通讯作者：
K. Young
中科院分区：
文献类型：
--
作者：
K. Young
细菌具有不同形状的事实并不令人惊讶；毕竟，我们很早就经常教授这个概念，并在识别和分类中使用它。然而，为什么细菌应该有特定的形状是一个很少受到关注的问题。答案是，形态只是微生物应对环境的另一种方式，是获得竞争优势的另一种工具。最近的研究表明，细菌形态具有进化史，并强调了不同形状的细菌在获取营养、从一个地方移动到另一个地方以及躲避捕食者方面的生存价值。在这些努力中，形状可能非常重要，以至于生物体可能会改变其形态以适应环境。简而言之，如果一个细菌需要进食、分裂或生存，或者它需要附着、移动或分化，那么它可以从采取适当的形状中受益。
The fact that bacteria have different shapes is not surprising; after all, we teach the concept early and often and use it in identification and classification. However, why bacteria should have a particular shape is a question that receives much less attention. The answer is that morphology is just another way microorganisms cope with their environment, another tool for gaining a competitive advantage. Recent work has established that bacterial morphology has an evolutionary history and has highlighted the survival value of different shapes for accessing nutrients, moving from one place to another, and escaping predators. Shape may be so important in some of these endeavors that an organism may change its morphology to fit the circumstances. In short, if a bacterium needs to eat, divide or survive, or if it needs to attach, move or differentiate, then it can benefit from adopting an appropriate shape.