Species of bacteria or bacterium?

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Discussion Overview

The discussion revolves around the correct usage of the terms "species of bacteria" versus "species of bacterium" in the context of English language conventions and biological terminology. Participants explore the implications of singular and plural forms in both casual and scientific contexts.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant notes the inconsistency in using "species of cat" versus "species of bacteria" and questions the correct form.
  • Another participant suggests that "bacteria" is often treated as a plural term in scientific contexts, similar to how "Felidae" is used for cats.
  • There is a mention that "bacteria" can also be used in a singular sense in everyday language, highlighting the ambiguity in English.
  • A participant points out that "species" can function as both singular and plural, depending on the context of the question being asked.
  • Some participants express frustration with the perceived lack of rules in the English language regarding these terms.
  • Confusion is reiterated by a participant who cites examples of "e coli bacteria species" and "gram (+) bacterium species," indicating the complexity of the terminology.

Areas of Agreement / Disagreement

Participants express differing views on the usage of "bacteria" and "bacterium," indicating that there is no consensus on which term is more appropriate in specific contexts.

Contextual Notes

The discussion reflects the complexities and nuances of English language usage in scientific terminology, with no clear resolution on the preferred terms.

nobahar
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When you say species of cat, you say exactly that, cat, not cats, the singular, don't you? There seems to be a mixture when it comes to bacteria. Some sources say species of bacteria, others speices of bacterium. Would you say "How many species of cats are there?" or "How many species of cat are there?". It seems, when it comes to bacteria, the plural is used in this case...
Peculiar!
Any body got any ideas?
 
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I suppose it's because Bacteria is the name of the family (or in this case domain) which is normally given as a plural.
So you would say - how many species of the family Felidae are there.

But bacteria is also used as a singular in everyday speech anyway.
Plus this is English - there aren't any rules, well there are but you are allowed to make up your own anyway.
 
Last edited:


Thanks mgb phys!
Damn the English language and its crazy rulelessness!
 
Species is both singular and plural, so it depends. :biggrin: If you are asking about a species of cat, then you're talking about one species. If you ask about species of cats, then you're asking about more than one species. Though, biologists are more typically going to ask about species of felids. :wink:
 
:smile:
Thanks moonbear!
 
e coli bacteria species

gram (+) bacterium species
 
LebLlama said:
e coli bacteria species

gram (+) bacterium species

You see, it is confusing!
 

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