2022 Fiscal Year Final Research Report
Diurnal cell wall formation reveal the mechanism of cellulose microfibril bundle and mechanical properties generation
Project/Area Number |
20H03042
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 40020:Wood science-related
|
Research Institution | Nagoya University |
Principal Investigator |
Yoshida Masato 名古屋大学, 生命農学研究科, 准教授 (30242845)
|
Project Period (FY) |
2020-04-01 – 2023-03-31
|
Keywords | セルロースミクロフィブリル束 / 細胞壁力学性能 / 細胞壁形成 / 日周生 |
Outline of Final Research Achievements |
Cellulose in the cell wall takes the form of bundles of cellulose microfibrils. In cell walls formed in environments with long daytime, cellulose microfibril bundles with extremely large cross sections were scattered throughout the cell wall. On the other hand, cell walls formed under long nighttime conditions had small bundles that were relatively uniform in size. It is thought that the matrix supplied at night to the nascent surface of the cell wall inhibits the assembly of cellulose microfibrils. Mechanical performance was generally better for cell walls formed at night length because of the more uniform foot size.
|
Free Research Field |
木質科学
|
Academic Significance and Societal Importance of the Research Achievements |
細胞壁のセルロースミクロフィブリルのサイズは、報告によって大きく異なり、10倍以上の違いがある。生育時の日照時間にセルロースミクロフィブリルの集合が影響を受けることが本研究によって明らかになり、学術的な説明の一助をもたらした。また、細胞壁は日周性を持って形成される意義の一つを、セルロースミクロフィブリル束の分布様式の点から説明し、細胞壁の力学性能を生育から制御する可能性を示唆できた。
|