Study of a new method preserving vegetables by applying plant acclimation

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K02420
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 08030:Family and consumer sciences, and culture and living-related
• Research Institution: Tokai University (2023); Tokai University Junior College (2020)
• Principal Investigator: Takatsuka Chihiro 東海大学, 人文学部, 講師 (90552539)
• Co-Investigator(Kenkyū-buntansha): 森安 裕二 埼玉大学, 理工学研究科, 教授 (20200454)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 緑葉老化 / 鮮度低下

Outline of Final Research Achievements

The senescence accompanied by yellowing phenomenon induced in the dark on Physcomitrium patens colonies is analyzed. Intracellular H2O2 levels increased in the dark. Treatment with Trolox, an ROS scavenger, suppressed the increase in H2O2 levels and inhibited senescence. When colonies were treated with the ROS generator methylviologen, intracellular H2O2 levels increased, and colonies became yellowish. These results indicate that the increase in intracellular H2O2 levels is mediated between dark stress and senescence response (Roni et al. 2022). Yellowing was delayed when colonies were heat-treated before being placed in the dark. These results suggest that heat stress delays plant senescence.

Free Research Field

生活科学、植物生理学

Academic Significance and Societal Importance of the Research Achievements

ヒメツリガネゴケやオオムギで測定した植物の老化パラメーターを今後は野菜類の鮮度低下に当てはめることで、植物老化と野菜の鮮度低下の共通点を見出すことができると期待される。本研究で得られた老化遅延の因子は、野菜保存時におこる劣化を遅延させる技術に応用できる可能性を持っている。