Induction of Tension Wood in GA_3-treated Branches of the Weeping Type of Japanese Cherry, Prunus spachiana : GROWTH AND DEVELOPMENT : ENVIRONMENTAL AND STRESS RESPONSES

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概要

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• GA_3 prevented the bending of branches in the weeping type of Japanese cherry, Prunus spachiana. Eccentric growth of GA_3-treated branches was observed. In the xylem on the upper side of such branches the presence of gelatin fibers, which stained strongly with fast green, was demonstrated. Moreover, a less dense distribution of vessels and a steeper angle of cellulose microfibrils in the secondary walls of fibers were also observed on this side. Similar features were noted in the xylem of the branches of cherry trees of the upright type, but they were not found in GA_3-untreated control branches of trees of the weeping type. These results suggest that GA_3 induces tension wood on the upper side of branches of Prunus spachiana of the weeping type, so that the branches become to grow upwards, resembling branches of the upright type.

• 日本植物生理学会の論文

著者

• Itoh Takao

  Wood Res. Inst. Kyoto Univ.

• Adachi Kaori

  Marine Biotech. Inst.

• Baba Kei-ichi

  Wood Research Institute Kyoto University

• YOKOYAMA Toshitaka

  Tama Office, Forest Development Technological Institute

• Nakamura Teruko

  Laboratory Of Plant Physiology Faculty Of Science Japan Women's University

• Adachi Kaori

  Laboratory of Plant Physiology, Faculty of Science, Japan Women's University

• Take Terumi

  Laboratory of Plant Physiology, Facullty of Science, Japan Women's University

• Take Terumi

  Laboratory Of Plant Physiology Facullty Of Science Japan Women's University

• Yokoyama Toshitaka

  Tama Forest Science Garden Forestry And Forest Products Research Institute

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