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Phytochrome‐mediated accumulation of chloroplast DNA in pea leaves
Author(s) -
Sasaki Yukiko,
Nakamura Yosuke,
Matsuno Ryuichi
Publication year - 1986
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 - 10.1016/0014-5793(86)80236-8
Subject(s) - phytochrome , chloroplast , protein subunit , chloroplast dna , rubisco , dna , biology , nuclear dna , red light , gene , botany , biochemistry , mitochondrial dna
Pea seedlings grown for 5 days in the dark were treated with red light for 5 min and grown for 2 more days in the dark. Effects of the red light on chloroplast DNA levels in the pea leaves were examined using probe DNA of the chloroplast‐coded large subunit and nuclear‐coded small subunit of ribulosebisphosphate carboxylase/oxygenase. The gene dosage of the large subunit, but not of the small subunit, was increased by red light. The increase was inhibited by subsequent far‐red light treatment. These results indicate that accumulation of chloroplast DNA in the cell is mediated by phytochrome. Probably the replication of chloroplast DNA is mediated by phytochrome.