Study on seed germination regulated by peroxisomal membrane ABC transporter

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07117
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Nagahama Institute of Bio-Science and Technology
• Principal Investigator: Hayashi Makoto 長浜バイオ大学, バイオサイエンス学部, 教授 (50212155)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ペルオキシソーム / 種子発芽 / 貯蔵脂肪 / デンプン / 葉酸 / プラスチド

Outline of Final Research Achievements

PED3 is a peroxisomal membrane ABC transporter. Fatty acids released from seed reserved lipid in oil body are imported into peroxisome by PED3, and then converted into sucrose supplying essential energy for seed germination.
To identify genes regulating carbon metabolism during germination, we performed comprehensive isolation and molecular genetical analyses of ped3 suppressor mutants. Six mutants were so far identified and analyzed their phenotypes. One of the mutant was revealed that it had defect in plastidial folylpolyglutamate synthetase gene, and accumulated starch during germination in the dark.

Free Research Field

植物生理学