Identification of a xylem sap germin-like protein and its expression under short-day and non-freezing low-temperature conditions in poplar root
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- Aohara Tsutomu
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Mizuno Hiroaki
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Kiyomichi Daiki
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Abe Yuta
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Matsuki Kaoru
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Sagawa Keiko
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Mori Hitoshi
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Iwai Hiroaki
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Furukawa Jun
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Satoh Shinobu
- Faculty of Life and Environmental Sciences, University of Tsukuba
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Description
In the shoots of photoperiod-sensitive deciduous trees, including poplar, short-day and non-freezing low-temperature conditions induce bud dormancy and its break, respectively, and these conditions also induce shoot cold acclimation. In a previous study, levels of organic and inorganic components, including proteins, increased in the xylem sap of Populus nigra in winter, suggesting seasonal changes in root functions. Here, analysis of a major xylem sap protein (XSP24) of P. nigra in winter by mass spectrometry together with the whole genome sequence of P. trichocarpa and transcript abundance in roots under short-day conditions identified PtXSP24 to be a germin-like protein of the cupin superfamily, which was reported to be associated with various stresses and to have oxalate oxidase and/or superoxide dismutase activities in the cell wall. Expression of XSP24, which corresponds to PtXSP24 in P. maximowiczii, a potentially useful Japanese native poplar in the same phylogenetic clade as P. trichocarpa, was enhanced under short-day and non-freezing low-temperature conditions, as well as by application of abscisic acid. These results suggest that XSP24 is involved in tolerance to environmental stresses in autumn and early winter.
Journal
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- Plant Biotechnology
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Plant Biotechnology 33 (2), 123-127, 2016
Japanese Society for Plant Biotechnology
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Details 詳細情報について
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- CRID
- 1390282679304598656
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- NII Article ID
- 130005164807
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- NII Book ID
- AA11250821
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- ISSN
- 13476114
- 13424580
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- NDL BIB ID
- 027478617
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed