Studies on mutants deficient in the photosystem I reaction centers inChlamydomonas reinhardtii

✍ Scribed by Jacqueline Girard; Nam Hai Chua; Pierre Bennoun; Gregory Schmidt; Monique Delosme

• Book ID: 104772139
• Publisher: Springer-Verlag
• Year: 1980
• Tongue: English
• Weight: 650 KB
• Volume: 2
• Category: Article
• ISSN: 0172-8083
• DOI: 10.1007/bf00435689

✦ Synopsis

Genetic analysis of 25 nuclear mutants defective in the chlorophyll-protein complex CP1 was undertaken. The mutants belong to 13 complementation groups scattered throughout the nuclear genome. All these mutants lack the apoprotein of CP1 and, in addition, a specific set of six low molecular weight thylakoid polypeptides. System I particles obtained by treating WT thylakoid membranes with detergent specifically contain those polypeptides which the mutants lack. These observations suggest that a particular sub-structure of the thylakoid membrane associated with the photosystem I activity is missing from all 25 mutants studied, and that this general phenotype can result from mutation at any one of several unllnked Mendelian loci.