1887

Abstract

SUMMARY: mutant 5·6 which produces phytoene, β- and γ-carotene, neolycopene A, lycopene and neurosporaxanthin was subjected to the effect of the following inhibitors of carotenoid synthesis: diphenylamine, 2-hydroxydiphenyl, β-ionone, methylheptenone. Certain intermediates in the Porter-Anderson (1962) pathway for carotenoid biosynthesis not previously present were then observed, namely: phytofluene, β-zeacarotene, ζ-carotene, neurosporene. When the mutant was grown in the presence of diphenylamine, washed free from it and then grown again in 1 % glucose in /15 KHPO, the more unsaturated polyenes seem to be formed at the expense of the more saturated ones. There was also evidence that γ-carotene was formed via β-zeacarotene and the sequence of carotenoid formation seems to agree very closely to that suggested by Porter&Anderson (1962).

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-45-3-531
1966-12-01
2020-01-25
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-45-3-531
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