Seasonal fluctuation of organic and inorganic components in xylem sap of Populus nigra
スポンサーリンク
概要
- 論文の詳細を見る
Deciduous trees show annual periodicity in shoot growth and development, but such periodicity is not well investigated in roots. To clarify the seasonal fluctuation in root functions, xylem sap from <I>Populus nigra</I> branches was analyzed for 2 years. Various xylem sap components including calcium, potassium, glucose, and proteins showed seasonal fluctuations with peaks from winter to spring. Abscisic acid (ABA) was the most abundant hormone in the xylem sap throughout all seasons and showed two peaks from late autumn to spring. We hypothesize that low temperature in winter promotes metal loading into the xylem sap and the synthesis of proteins and sugars in roots as an adaptation to the winter environment and to prepare for spring bud burst.
著者
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KOJIMA Mikiko
RIKEN Plant Science Center
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Sakakibara Hitoshi
Riken (the Institute Of Physical And Chemical Research) Plant Science Center
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Kojima Mikiko
Riken Plant Sci. Center
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Abe Yuta
Graduate School Of Information Production And Systems Waseda University
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Iwai Hiroaki
Graduate School Of Life And Environmental Science University Of Tsukuba
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Satoh Shinobu
Graduate School Of Life And Environmental Sci. Univ. Of Tsukuba
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FURUKAWA Jun
Graduate School of Life and Environmental Sciences, University of Tsukuba
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Mizuno Hiroaki
Graduate School of Life and Environmental Sciences, University of Tsukuba
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Matsuki Kaoru
Graduate School of Life and Environmental Sciences, University of Tsukuba
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Sagawa Keiko
Graduate School of Life and Environmental Sciences, University of Tsukuba
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