Seasonal fluctuation of organic and inorganic components in xylem sap of Populus nigra
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- Furukawa Jun
- Graduate School of Life and Environmental Sciences, University of Tsukuba
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- Abe Yuta
- 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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- Kojima Mikiko
- RIKEN Plant Science Center
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- Sakakibara Hitoshi
- RIKEN Plant Science Center
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- Iwai Hiroaki
- Graduate School of Life and Environmental Sciences, University of Tsukuba
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- Satoh Shinobu
- Graduate School of Life and Environmental Sciences, University of Tsukuba
Abstract
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 Populus nigra 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.
Journal
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- Plant Root
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Plant Root 5 56-62, 2011
Japanese Society for Root Research
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Details 詳細情報について
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- CRID
- 1390001205275308032
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- NII Article ID
- 130002077521
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- ISSN
- 18816754
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed