Viviparous-1 Mutation in Maize Conditions Pleiotropic Enzyme Deficiencies in the Aleurone | Zendy

Hugo K. Dooner | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Viviparous-1 Mutation in Maize Conditions Pleiotropic Enzyme Deficiencies in the Aleurone

Author(s) -

Hugo K. Dooner

Publication year - 1985

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.77.2.486

Subject(s) - aleurone , biology , chalcone synthase , flavonoid , flavonoid biosynthesis , gene , structural gene , enzyme , phenylalanine ammonia lyase , phenotype , biochemistry , glycosyltransferase , chromosomal translocation , anthocyanin , biosynthesis , chalcone isomerase , genetics , botany , mutant , gene expression , peroxidase , transcriptome , antioxidant

The viviparous-1 (vp1) mutation in maize (Zea mays L.) conditions a unique pleiotropic phenotype: premature germination of the embryo and failure to synthesize anthocyanin (flavonoid) pigments in the aleurone. By using a B-A translocation, it is possible to analyze the basis for the anthocyaninless phenotype of vp1 in the absence of vivipary. Anthocyaninless vp1 aleurones were found to be deficient in at least three enzymes of flavonoid biosynthesis (phenylalanine ammonia lyase, chalcone synthase, and UDPG-flavonoid glucosyltransferase) as well as in several other metabolically unrelated enzymes that show pronounced increases in late stages of aleurone development. The set of structural genes encoding such enzymes is postulated to be under the regulation of the vpl gene.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research