Polysome formation induced by light in Pinus thunbergii seed embryos |
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| Authors: | Yamamoto Naoki; Sasaki Satohiko; Asakawa Sumihiko; Hasegawa Masao |
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| Institution: | 1Department of Biology, Faculty of Science, Tokyo Metropolitan University Setagaya-ku, Tokyo 158
2Government Forest Experiment Station Meguro-ku, Tokyo 153, Japan |
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| Abstract: | Ribosome patterns in embryos of light-requiring pine seeds duringprolonged dark imbibition and after red light irradiation werestudied. Ribosomes isolated from dry embryos were essentiallyhomogeneous monomer particles. During a dark imbibition periodas long as 42 days, no appreciable changes in ribosomal patternswere observed. However, a decrease in monomer ribosomes anddistinct polysome formation were detected within 24 hr aftera brief red light had been given at any point in the dark imbibitionperiod. (Received May 11, 1974; ) |
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