Molecular mechanism underlying stem development response to internal and external mechanical stimuls

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K20662
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0702:Biology at cellular to organismal levels, and related fields
• Research Institution: Kanagawa University
• Principal Investigator: Asaoka Mariko 神奈川大学, 理学部, 助教 (80909888)
• Project Period (FY): 2021-08-30 – 2023-03-31
• Keywords: 茎 / シロイヌナズナ / 形態形成 / 力学的最適化 / 遺伝子発現

Outline of Final Research Achievements

The stems of herbage plants have a cylindrical structure and stand upright against gravity, producing flowers and fruits. Towards understanding how stem organ responds to mechanical signals from outside and inside of organ, this research was performed to establish the basis of analysis for tissue-specific gene expression within the stem. In addition, we revealed that the number and arrangement of vascular bundles is a key factor for maintenance of mechanical integrity of stem.

Free Research Field

植物分子形態学

Academic Significance and Societal Importance of the Research Achievements

植物はまるで「生きた建築物」であり、茎はその大黒柱といえる。その茎の成長を制御する遺伝子群や、茎を構成する細胞の形作りの様式はようやく解析され始めたばかりである。本研究成果は、草本植物の茎の形態形成過程の全貌の一端を解き明かしたものであり、本研究における研究成果は、建築分野における応用的な研究にもつながりうる。