Presence of wax components of Charophytes revealed by Genome and suface lipid analyses and their importance in adaptation to land environment
| Project/Area Number |
15H04393
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Morphology/Structure
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Ohta Hiroyuki 東京工業大学, 生命理工学院, 教授 (20233140)
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| Co-Investigator(Kenkyū-buntansha) |
堀 孝一 東京工業大学, 生命理工学院, 助教 (70453967)
佐々木 結子 (関本結子) 東京工業大学, 生命理工学院, 研究員 (60422557)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2017: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2016: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2015: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Keywords | 細胞外皮 / 細胞壁 / ワックス / 植物陸上進出 / 車軸藻植物門 / クレブソルミディウム / 細胞・組織 / 植物 / 進化 / 脂質 / 表層脂質 / クチクラ / トリアシルグリセロール / 陸上環境への適応 |
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| Outline of Final Research Achievements |
In this study, we proposed that charophyte algae, which are the closest algae to land plants, acquired a cuticle-like hydrophobic layer composed of triacylglycerol to adapt to a terrestrial environment by initial land colonization. To demonstrate the hypothesis, we analyzed surface lipids and transcriptome of Klebsormidium, which early diverged from charophyte algae ancestor. As a result, it is assumed that surface structure and its related gene regulation were evolved in a stepwise manner during land colonization while using triacylglycerol as hydrophobic barrier. These results will provide information to clarify relation between process of land colonization by plants and evolution of its surface lipid.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Recurrent acquisition of cytosine methyltransferases into eukaryotic retrotransposons.2018
Author(s)
de Mendoza A, Bonnet A, Vargas-Landin DB, Ji N, Li H, Yang F, Li L, Hori K, Pflueger J, Buckberry S, Ohta H, Rosic N, Lesage P, Lin S, Lister R
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Journal Title
Nature communications
Volume: 9
Issue: 1
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Tangled evolutionary processes with commonality and diversity in plastidial glycolipid synthesis in photosynthetic organisms2016
Author(s)
Hori, K., Nobusawa, T., Watanabe, T., Madoka, Y., Suzuki, H., Shibata, D., Shimojima, M., and Ohta, H.
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Journal Title
Biochim. Biophys. Acta, Molecular and Cell Biology of Lipids
Volume: in press
Issue: 9
Pages: 1294-1308
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Primitive extracellular lipid components on the surface of the Charophytic Alga Klebsormidium flaccidum2016
Author(s)
Satoshi Kondo, Koichi Hori, Yuko Sasaki-Sekimoto, Atsuko Kobayashi, Tsubasa Kato, Naoko Yuno-Ohta, Takashi Nobusawa, Kinuka Ohtaka, Mie Shimojima, Hiroyuki Ohta
Organizer
22nd International Symposium on Plant Lipids
Place of Presentation
Goettingen, Germany
Year and Date
2016-07-03
Related Report
Int'l Joint Research
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[Presentation] Primitive adaptation mechanisms to land environments revealed by the genome of a charophyte alga Klebsormidium flaccidum2016
Author(s)
Satoshi Kondo, Koichi Hori, Yuko Sasaki-Sekimoto, Atsuko Kobayashi, Tsubasa Kato, Naoko Yuno-Ohta, Takashi Nobusawa, Kinuka Ohtaka, Mie Shimojima, Hiroyuki Ohta
Organizer
EMBO workshop New model systems for early land plant evolution
Place of Presentation
Vienna, Austria
Year and Date
2016-06-22
Related Report
Int'l Joint Research / Invited
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