Poplar peroxidase, CWPO-C, controls lignification and development in plant

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14774
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: Kyushu University
• Principal Investigator: YUJI TSUTSUMI 九州大学, 農学研究院, 教授 (30236921)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: ペルオキシダーゼ / リグニン / 分化 / 形態形成 / 発現解析 / 機能解析

Outline of Final Research Achievements

Cationic cell-wall-bound peroxidase (CWPO-C), a class III peroxidase in Populus alba, has been considered to play a role in the lignification process. In order to promote better understanding about CWPO-C functions, detailed expression analysis of this peroxidase using laser microdissection and expression quantification tools were performed. It was shown that cells express CWPO-C in cortex cells, instead of cambium cells. Moreover CWPO-C expression was observed in apical meristem. In addition, delay of the growth and decrease of branch number were observed in transgenic Arabidopsis overexpressing CWPO-C. These results imply that CWPO-C is involved in growth and cell elongation; suggesting a new aspect to the role of CWPO-C.

Free Research Field

木質科学