SUMMARY: The DNA base composition of 14 authentic strains of the genus , determined by caesium chloride density gradient centrifugation, was found to vary from 51 to 68 mole % guanine+cytosine (G + C). The mole % G + C values for the various species are as follows: and 51-52, and 56-57, and and 62-68. Another group of chemoautotrophic bacteria, the nitrifiers and , were found to have a G + C content of 52 and 65%, respectively. The results are compared with other types of taxonomic studies made with these and related bacteria.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error