Effects of cationic and anionic chain compounds on absorption spectra and photochemical activities of chloroplasts
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概要
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The effects of ionic chain compounds on absorption spectra and photochemical activities of spinach chloroplasts in suspension were investigated and compared with the effects of non-ionic chain compounds previously studied. Two types of spectral changes took place when chloroplasts were treated with ionic compounds. One type of change, not observable with non-ionic chain compounds such as carotenoids and fatty alcohols, was in the efficiency of light absorption; absorption bands over the whole visible region were either intensified or flattened at low reagent concentrations. Intensification was observed with anionic fatty acids with 10-18 carbon atoms and ascribed to swelling of whole chloroplasts, while flattening was observed with cationic primary and quarternary amines and ascribed to aggregation of chloroplasts. The other type of spectral change, transformation of bands observed at high concentrations of ionic chain compounds, was essentially similar to that found with non-ionic chain compounds. The red and Soret bands of chlorophylls were transformed and absorption in the range of 490-520 nm decreased on treatment with ionic chain compounds. Activity of photosystem I was enhanced by reagents at low concentrations and inhibited at high concentrations, while activity of photosystem II decreased in a middle concentration range. These activity changes were correlated to the spectral changes, although the correlations were less marked than those found with non-ionic compounds. This is probably because of overlapping of the two types of changes which occur with ionic chain compounds.
- 日本植物生理学会の論文
著者
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Ogawa Teruo
Laboratory Of Plant Physiology The Institute Of Physical And Chemical Research
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Ogawa Teruo
Laboratory Of Plant Physiology Institute Of Physical And Chemical Research (rikagaku Kenkyusho)
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Inoue Yorinao
Laboratory of Plant Physiology, The Institute of Physical and Chemical Research
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Shibata Kazuo
Laboratory of Plant Physiology, The Institute of Physical and Chemical Research
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Konishi Katsuko
Laboratory of Biological Chemistry, Tokyo Institute of Technology
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Shibata Kazuo
Laboratory Of Plant Physiology Institute Of Physical And Chemical Research (rikagaku Kenkyusho)
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Inoue Yorinao
Laboratory Of Plant Physiology The Institute Of Physical And Chemical Research
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Konishi Katsuko
Laboratory Of Biological Chemistry Tokyo Institute Of Technology
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Ogawa Teruo
The Tokugawa Institute For Biological Research Mejiromachi Tokyo And Tokyo Institute Of Technology
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