V2EX saprophyte

Saprophyte

定义 Definition

saprophyte(名词):腐生生物;指以死亡或腐烂的有机物为营养来源的生物(常见于真菌、部分细菌)。在现代生物学里更常用 saprotroph 来强调“腐生取食/分解”的方式;saprophyte 仍常见于较旧或通俗的表述中。

发音 Pronunciation (IPA)

/sprfat/

例句 Examples

Many fungi are saprophytes that help recycle nutrients in soil.
许多真菌是腐生生物,能帮助土壤中养分循环。

As a saprophyte, the organism secretes enzymes to break down dead plant matter and absorb the dissolved nutrients.
作为腐生生物,这种生物会分泌酶分解死亡的植物物质,并吸收溶解出的养分。

词源 Etymology

来自希腊语词根:**sapro-**(“腐烂的”)+ -phyte(“植物/生物”)。早期人们把许多不进行光合作用、靠分解获取营养的生物笼统地归为“植物”,因此形成该词;随着分类学发展,现代更倾向用 saprotroph 描述其营养方式。

相关词 Related Words

文学与著作 Literary Works

  • Introductory Mycology(C. J. Alexopoulos 等):讨论真菌营养方式时常使用/对比 saprophyte 与相关术语。
  • The Fungi(Webster & Weber):介绍真菌生态角色(含腐生生活史)时出现该词。
  • Botany: An Introduction to Plant Biology(James D. Mauseth):在植物与真菌、分解者生态内容中提及 saprophyte(并常与现代术语对照)。
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