Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

The wild‐type of the filamentous fungus Mucor circinelloides accumulates the yellow pigment β‐carotene. At a continuous blue‐light fluence rate of 0.1 W/m2 the β‐carotene content increases about eight fold over the dark controls. Among the mutants isolated after exposure of spores to either N‐methyl‐N'‐nitro‐N‐nitrosoguanidine or ICR‐170, a red mutant accumulating lycopene, white mutants accumulating phytoene and white mutants without carotenoids were found. The biosynthesis of carotenoids in M. circinelloides shows similarities with that of the fungus Phycomyces blakesleeanus such as the presence of mutants in the same structural genes and the induction by light of the pathway. However, negative end‐product regulation by β‐carotene on the biosynthetic pathway, as in Phycomyces, is absent in M. circinelloides. In contrast to Phycomyces carB and carR mutants, carotenoids in corresponding mutants of M. circinelloides are photoinduced. 1995 Deutsche Botanische Gesellschaft/German Botanical Society

Original publication

DOI

10.1111/j.1438-8677.1995.tb00511.x

Type

Journal article

Journal

Botanica Acta

Publication Date

01/01/1995

Volume

108

Pages

396 - 400