Improvement lignin characteristics by simultaneous disruption of plant peroxidases involved in lignification

2014 Fiscal Year Final Research Report

• Project/Area Number: 25660140
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: Kyushu University
• Principal Investigator: TSUTSUMI YUJI 九州大学, (連合)農学研究科(研究院), 教授 (30236921)
• Co-Investigator(Renkei-kenkyūsha): SHIGETO Jun 九州大学, 農学研究院, 学術研究員 (70570852)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: ペルオキシダーゼ / マルチノックアウト / 低リグニン / 易分解性リグニン / エネルギー植物 / 遺伝子工学 / プロモーター

Outline of Final Research Achievements

Lignin have negative impacts on the biochemical process for producing lignocellulosic biofuels, forage digestibility, and the kappa value in the pulping industry. We recently demonstrated that deficiency of plant peroxidases (Prx) involved in Arabidopsis stem lignification led to both decreased total lignin content and increased uncondensed units of lignin. In this study, we showed simultaneous disruption of these Prx genes resulted in enhancing the phenotypic traits of each single mutant, suggesting that manipulation of Prx genes is an attractive strategy to improve lignin characteristics.

Free Research Field

木質生化学