The Amino Acid Content in Gamma-irradiated Rice† |
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Authors: | Makoto Tajima Nobuko Sekiguchi Masao Fujimaki |
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Institution: | Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo |
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Abstract: | High phosphate accumulating bacteria were isolated by autoradiography. One isoate, Arthrobacter globiformis PAB-6 accumulated phosphate intracellularly at 20% of dry cell mass in a simple synthetic medium. This amount was 3~7 times higher than type cultures examined. Almost no phosphate was released into the medium after cessation of growth. Fifty percent of total intracellular phosphate was fractionated as nucleic acids, while 20% each was recovered from cold PCA soluble fractions and polyphosphate fractions. The large content of nucleic acids in this bacterium appeared due to increased RNA content, specifically 4 S RNA fraction. |
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Keywords: | blue flower coloration delphinidin 3-rutinoside iron accumulation Tulipa gesneriana vacuolar iron transporter |
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