An arabinogalactan-protein from the leaves of Nicotiana tabacum.
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Purine metabolism in mesophyll protoplasts of tobacco (Nicotiana tabacum) leaves.
The overall metabolism of purines was studied in tobacco (Nicotiana tabacum) mesophyll protoplasts. Metabolic pathways were studied by measuring the conversion of radioactive adenine, adenosine, hypoxanthine and guanine into purine ribonucleotides, ribonucleosides, bases and nucleic acid constituents. Adenine was extensively deaminated to hypoxanthine, whereupon it was also converted into AMP a...
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O R G A N S which are periodically repeated in plants show a more or less quantitative variation in spite of being governed by the same genotype. This variation is considered to be due, in addition to local fluctuation in environmental conditions outside and/or inside the plant body, to mistakes in the developmental course of organs resulting probably from the intrinsic nature of the organisms....
متن کاملGenotoxicity of Nicotiana tabacum leaves on Helix aspersa
Tobacco farmers are routinely exposed to complex mixtures of inorganic and organic chemicals present in tobacco leaves. In this study, we examined the genotoxicity of tobacco leaves in the snail Helix aspersa as a measure of the risk to human health. DNA damage was evaluated using the micronucleus test and the Comet assay and the concentration of cytochrome P450 enzymes was estimated. Two group...
متن کاملInfluence of Iron Chlorosis on Pigment and Protein Metabolism in Leaves of Nicotiana tabacum L.
Experiments were conducted on Nicotiana tabacum, L. to study the relation in the grana among chlorophylls, carotenoids, and proteins. The effect of iron chlorosis on protein and pigment synthesis was studied at different stages of chlorosis using glycine-U-C(14). Pigments were separated by thin layer chromatography.Chlorophyll a, chlorophyll b, carotenoid, and protein contents of chloroplasts f...
متن کاملMitochondrial preparations from the leaves of tobacco (Nicotiana tabacum). 433. Glycollic oxidase and fumarase activity.
Price, C. A. & Thimann, K. V. (1951). Arch. Biochem. Biophys. 33, 170. Remmert, L. F. & Lehninger, A. L. (1959). Proc. nat. Acad. Sci., Wash., 45, 1. Sacktor, B., O'Neill, J. J. & Cochran, D. G. (1958). J. biol. Chem. 233, 1233. Smillie, R. M. (1955). Aust. J. biol. Sci. 8, 186. Smillie, R. M. (1956). Aust. J. biol. Sci. 9, 81. Switzer, C. M. & Smith, F. G. (1957). Canad. J. Bot. 35, 515. Umbre...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1982
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.46.1395