1887

Abstract

Summary: Eight mutants of deficient in -type cytochrome were detected by their inability to catalyse the conversion of α-naphthol plus dimethyl--phenylenediamine to indophenol. From the properties of two of these mutants which completely lacked spectrophotometrically detectable -type cytochrome, evidence was provided for the presence of a respiratory pathway which terminates in a cytochrome -like oxidase. The presence of this pathway allows mutants lacking -type cytochrome to grow aerobically, and also explains many of the non-mitochondrial features of the aerobic respiratory chain of the wild-type. None of the mutants had significantly lower levels of -type cytochromes compared with the parental strain, but two mutants were deficient in cytochrome . All of the mutants could reduce nitrate, but four of them were unable to denitrify and these showed poor growth with nitrate as added terminal electron acceptor.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-115-2-443
1979-12-01
2019-10-23
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-115-2-443
Loading
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