Submitted to: Genbank
Publication Type: Other
Publication Acceptance Date: 9/9/2016
Publication Date: N/A
Technical Abstract: Maize white seedling 3 (w3) has served as a model albino-seedling mutant since its discovery in 1923. We show that the w3 phenotype is caused by disruptions in homogentisate solanesyl transferase (HST), an enzyme that catalyzes the committed step in plastoquinone-9 (PQ9) biosynthesis. This reaction lies at the heart of a complex metabolic network of plastidial antioxidants, pigments, and phytohormones. Disruption of PQ9 biosynthesis has broad-ranging implications, from nutritional quality of grains to plant defense. These cDNAs were sequenced as normal variants of HST in various maize lines and further our research towards understanding plant responses to environmental and biotic stresses.