Morphological Observations and Qualitative and Quantitative Studies of Auxins after Induction of Tobacco Genetic Tumor
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概要
- 論文の詳細を見る
When stem segments of tobacco F_1 (Nicotiana glauca ×N. langsdorffii) seedlings were cultured on a hormone-free medium in the light, tumorous tissues were induced on the segments within 5 days. The fresh weight of the tissues increased rapidly, with a 10-fold increase in weight every 6 days. Morphological observations revealed the active division of cells and the primordium-like structures of the teratomas that had been induced during the 5 days after cutting of the stem segments. In the light-grown tissues of genetic tumors, IAA was revealed to be the predominant auxin by analysis by gas chromatography-mass spectrometry. Normal F_1 seedlings grown in the light contained endogenous IAA at a concentration of 3.4 ng/g fr wt. Five days after cutting, the level of endogenous IAA in stem segments rose to 96 ng/g fr wt Or more, and then it decreased to 9.1 ng/g fr wt by 11 days. This surge in the endogenous level of IAA may play an important role in the induction of tobacco genetic tumor.
- 日本植物生理学会の論文
著者
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SAKURAI Akira
The Institute of Physical and Chemical Research
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Sakurai Akira
The Inst. Of Phys. And Chem. Res.
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Kobayashi Masatomo
The Institute of Physical and Chemical Research
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NAKAGAWA Sachiko
The Institute of Physical and Chemical Research
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SYONO Kunihiko
Department of Pure and Applied Sciences, The University of Tokyo
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Ichikawa Takanari
Department Of Pure And Applied Sciences University Of Tokyo
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Ichikawa Takanari
Department Of Pure And Applied Science University Of Tokyo
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Kobayashi Masatomo
The Inst. Of Phys. And Chem. Res.
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Syono K
Univ. Tokyo Tokyo Jpn
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Syono Kunihiko
Department Of Life Science Graduate School Of Arts And Sciences University Of Tokyo:(present Address
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Nakagawa S
Nagoya Univ. Nagoya Jpn
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Ichikawa T
Department Of Pure And Applied Sciences University Of Tokyo
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