Question

I would like to know which species of iron-reducing bacteria are inhibited in their iron metabolism by a copper concentration of less than 500 nano moles per litre. Searching the internet, I can only find Klebsiella /Enterobacter /Aerobacter aerogenes, and I'm not even certain that that is an iron-reducing organism.

According to one reference, there are other iron-reducers which are similarly allergic to copper, but it doesn't mention which they might be. I have done cultures in which iron-reduction appeared to be inhibited by a copper concentration of less than 100 nano moles per litre, and I am trying to identify the organism by a process of elimination.

Answer 1

Klebsiella, Enterobacter, and Aerobacter aerogenes are species of iron-reducing bacteria that are inhibited by copper concentrations below 500 nano moles per litre. Other iron-reducing organisms may also be allergic to copper, but further information is not provided. Based on your culture results, you can eliminate species that were not inhibited by copper concentrations below 100 nano moles per litre.

Step-by-step explanation:

The species of iron-reducing bacteria that are inhibited in their iron metabolism by a copper concentration of less than 500 nano moles per litre include Klebsiella, Enterobacter, and Aerobacter aerogenes.

In addition to these species, there may be other iron-reducers that are similarly allergic to copper, but their specific identification is not mentioned. However, based on your culture results, you can eliminate any species that were not inhibited by a copper concentration of less than 100 nano moles per litre.

This information can be found in the references provided and is relevant to the study of bacteria, iron metabolism, and copper inhibition.