1887

Abstract

Vegetative cells of were induced to encyst in the presence of β-hydroxybutyrate. Although modal cell volume fluctuated (2.7 to 4 μ;m) markedly during exponential growth, the final modal volume attained by mature cysts (1.13 to 1.3 μ;m) was relatively constant. Respiratory activity of encysting cultures fell rapidly 3 h after initiation of encystment. This was accompanied by decreased inhibition of respiration by KCN. NADH oxidase activity of membrane preparations fell from approximately 450 to 50 nmol O consumed min (mg protein) during differentiation and was also less sensitive to KCN. Difference spectra of cytochromes in membrane preparations revealed a number of changes. Amounts of cytochromes and all fell during encystment; cytochrome levels increased whilst cytochrome oxidase was gradually lost from the membrane during the first 22 h of morphogenesis.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-131-6-1403
1985-06-01
2019-10-18
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-131-6-1403
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