2013 Fiscal Year Final Research Report
Study on overwintering mechanism of dormant buds of trees for sustainable production of woody biomass
| Project/Area Number |
23580453
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Boundary agriculture
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| Research Institution | Hokkaido University |
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Principal Investigator |
ARAKAWA Keita 北海道大学, (連合)農学研究科(研究院), 准教授 (00241381)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 冬芽 / 越冬機構 / 耐寒性 / 休眠 |
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| Research Abstract |
In this study, extraorgan-freezing and endodormancy release of larch dormant buds were studied for understanding overwintering mechanism of dormant buds of trees.
Cryo-scanning electron microscopic study revealed that primordial cells were partially dehydrated at subzero temperatures and water remaining in primordial cells was kept in the deep supercooling state. In this tissue, accumulation of several carbohydrates such as pinitol and sucrose were detected as major components. However, it is difficult to explain that high freezing tolerance by deep supercooling capability of primordial tissue is determined by accumulation of major carbohydrates alone. Possible contribution of minor components such as supercooling-facilitating substances might be studied in larch dormant buds. In addition, proteomic analysis by using LC-MS/MS showed that only minor changes in soluble protein composition occurred in larch dormant buds within three weeks during endodormancy release.
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Research Products
(16 results)
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[Journal Article] Roles of cell walls and intracellular contents in supercooling capability of xylem parenchyma cells of boreal trees2013
Author(s)
Kasuga,J,Endoh,K.,Yoshiba,M.,Taido,l.,Arakawa,K.,Uemura,M.,Fujikawa,S.
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Journal Title
Physiologia Plantarum
Volume: 148
Pages: 25-35
DOI
Peer Reviewed
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[Journal Article] Analysis of supercooling activity of tannin-related polyphenols2013
Author(s)
Kuwabara,C.,Wang,D.,Endoh,K.,Fukushi,Y.,Arakawa,K.,Fujikawa,S.
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Journal Title
Cryobiology
Volume: 67
Pages: 40-49
DOI
Peer Reviewed
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[Journal Article] Presence of supercooling-facilitating (anti-ice nucleation) hydrolyzable tannins in deep supercooling xylem parenchyma cells in Cercidiphyllum japonicum2012
Author(s)
Wang,D.,Kasuga,].,Kuwabara,C.,Endoh,K.,Fukushi,Y.,Fujikawa,S.,Arakawa,K.
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Journal Title
Planta
Volume: 235
Pages: 747-759
DOI
Peer Reviewed
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[Journal Article] Freezing activities of flavonoids in solutions containing different ice nucleators2012
Author(s)
Kuwabara,C.,Wang,D.,Kasuga,].,Fukushi,Y.,Arakawa,K.,Koyama,T.,lnada,T.,Fujikawa,S.
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Journal Title
Cryobiology
Volume: 64
Pages: 279-285
DOI
Peer Reviewed
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[Presentation] Supercooling-facilitating hydrolyzable tannins isolated from xylem tissues of Cercidiphyllum japonicum2012
Author(s)
Wang,D.,Kuwabara,C.,Endo,K.,Fukushi,Y.,Fujikawa,S.,Arakawa,K.
Organizer
Plant and Microbe Adaptations to Cold
Place of Presentation
Hokkaido University,Sapporo
Year and Date
20120624-28
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