Developmental Loss of Photosystem II Activity and Structure in a Chloroplast-Encoded Tobacco Mutant, Lutescens-1
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چکیده
منابع مشابه
The primary structure of a 4.0-kDa photosystem I polypeptide encoded by the chloroplast psaI gene.
Partial amino acid sequences have been determined for a 4.0-kDa photosystem I polypeptide from barley. A comparison with the sequence of the chloroplast genome of Nicotiana tabacum and Marchantia polymorpha identified the polypeptide as chloroplast-encoded. We designate the corresponding gene psaI and the polypeptide PSI-I. The barley chloroplast psaI gene was sequenced. The gene encodes a poly...
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The chloroplast genome of all higher plants encodes, in its large single-copy region, a conserved open reading frame of unknown function (ycf3), which is split by two group II introns and undergoes RNA editing in monocotyledonous plants. To elucidate the function of ycf3 we have deleted the reading frame from the tobacco plastid genome by biolistic transformation. We show here that homoplasmic ...
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The lipids of photosystem II particles, of chloroplasts and leaves are compared in the variegated tobacco mutant N C 95. The mutant differs from other N. tabacum mutants by the phenomenon that it has variegated leaves with green and with yellow-green leaf patches. Chloroplasts from the green leaf areas exhibit photosystem II and photosystem I reactions and have a normal lamellar system with gra...
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We have previously demonstrated (Armond, P. A., C. J. Arntzen, J.-M. Briantais, and C. Vernotte. 1976. Arch. Biochem. Biophys. 175:54-63; and Davis, D. J., P. A. Armond, E. L. Gross, and C. J. Arntzen. 1976. Arch. Biochem. Biophys. 175:64-70) that pea seedlings which were exposed to intermittent illumination contained incompletely developed chloroplasts. These plastids were photosynthetically c...
متن کاملForms of Dissolved Carbon Dioxide Required for Photosystem II Activity in Chloroplast Membranes.
High concentrations of both bicarbonate and formate inhibit photosynthetic O(2) evolution at pH 8.0. At this pH, only 2.4% of the total dissolved carbon dioxide exists as CO(2). At pH 7.3, where 11% of the total dissolved carbon dioxide exists as CO(2), HCO(3) (-) no longer inhibits. While formate still inhibits O(2) evolution at pH 7.3, its effect can be partially overcome if CO(2) is also pre...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1986
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.82.1.19