Identification of aroma component related to the field resistance against citrus canker (Xanthomonas citri subsp. citri) and elucidation for its metabolic regulation in citrus

2015 Fiscal Year Final Research Report

• Project/Area Number: 25450050
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Horticultural science
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: SHIMADA Takehiko 国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門カンキツ研究領域, ユニット長 (10355399)
• Co-Investigator(Kenkyū-buntansha): ENDO Tomoko 国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門カンキツ研究領域, 上級研究員 (50355400)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: リナロール / カンキツ / かいよう病 / 抵抗性 / 遺伝子組換え体

Outline of Final Research Achievements

Linalool had anti-bacterial activity against citrus canker (Xcc) and is highly accumulated in the leaves and mature fruits of Ponkan mandarin with the field resistance to Xcc. Satsuma mandarin had 3 linalool synthase genes in the genome and their transcription increased in response to wounding and the attacks of bacterial and fungi. Transgenic orange leaves harboring transgene of linalool synthase suppressed the growth of Xcc and accumulated high transcripts of pathogen related genes, indicating that linalool might be involved in the induction of non-host resistance in citrus.

Free Research Field

果樹園芸学