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The hydroxyphenylpyruvate dioxygenase from Synechocystis sp. PCC 6803 is not required for plastoquinone biosynthesis
Author(s) -
Dähnhardt Dorothee,
Falk Jon,
Appel Jens,
van der Kooij Tom A.W,
Schulz-Friedrich Rüdiger,
Krupinska Karin
Publication year - 2002
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(02)02978-2
Subject(s) - plastoquinone , synechocystis , dioxygenase , biochemistry , biosynthesis , cyanobacteria , biology , carotenoid , chemistry , gene , chloroplast , thylakoid , genetics , mutant , bacteria
The disruption of the Synechocystis open reading frame Δ slr0090 encoding a gene with high homology to plant genes encoding 4‐hydroxyphenylpyruvate dioxygenase results in an impairment of tocopherol biosynthesis without affecting levels of plastoquinone, carotenoids and chlorophyll as well as cell growth and photosynthesis. Our results indicate that in Synechocystis in contrast to the situation in higher plants the 4‐hydroxyphenylpyruvate dioxygenase is not required for the synthesis of plastoquinone.