V2EX euglena

Euglena

定义 Definition

眼虫(属):一种常见的单细胞真核微生物,多生活在淡水中,兼具类似植物的叶绿体光合作用能力与类似动物的运动/摄食特征(常用鞭毛游动)。在生物学中常被用作研究原生生物与细胞结构的示例。(该词也常被用来泛指“眼虫类生物”。)

发音 Pronunciation

/julin/

例句 Examples

Euglena can swim using a flagellum.
眼虫可以用鞭毛游动。

In a drop of pond water, Euglena may photosynthesize in sunlight but switch to absorbing nutrients when light is limited.
在一滴池塘水里,眼虫在阳光下可能进行光合作用,但当光照不足时会转而吸收营养物质。

词源 Etymology

Euglena 来自新拉丁语,源头可追溯到希腊语:eu-(“好、真、良”)+ glēnē(与“眼球/眼窝”相关的词根)。之所以与“眼”有关,是因为眼虫具有对光敏感的眼点(stigma),能帮助它感知光线方向。

相关词 Related Words

文学与著作 Literary Works

  • Campbell Biology(《坎贝尔生物学》):常以 Euglena 作为原生生物与混合营养(mixotrophy)的代表例。
  • Brock Biology of Microorganisms(《布洛克微生物学》):在微生物多样性与真核微生物章节中常出现。
  • Microbiology: An Introduction(Tortora 等):在基础微生物学与原生生物概述中常提及 Euglena
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