Analysis of plant root extension mechanism induced by pectin oligosaccharide

2017 Fiscal Year Final Research Report

• Project/Area Number: 26450061
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant protection science
• Research Institution: Hirosaki University
• Principal Investigator: Hamada Shigeki 弘前大学, 農学生命科学部, 准教授 (90418608)
• Research Collaborator: SASAKI Riho ; TERASAWA Taishi ; ISHIBASHI Ryou
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: イネ / ペクチン / 根の伸長 / 病害耐性

Outline of Final Research Achievements

Pectin is one of the cell wall polysaccharides and important for plant development. Little is known about the effect of exogeneous pectin on plants. To understand the functions of exogeneous pectin, pectin oligosaccharide was treated young rice roots. Pectin treated rice showed more root extension and pathogen resistance. Proteome and mRNA-seq analyses also showed the overexpression of gibberellin responsive genes and pathogen resistance genes. Our date indicates that galacturonic acids, which is the smallest unit of pectin, play signal molecule directly and induce root extension and pathogen resistance.

Free Research Field

植物生化学　酵素化学