Studying the scientific bases of companion planting as a plant-to-plant signaling.

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07294
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Horticultural science
• Research Institution: Kagoshima University
• Principal Investigator: YOSHIDA Riichiro 鹿児島大学, 農水産獣医学域農学系, 准教授 (70301786)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 環境ストレス応答 / 植物ホルモン / 遺伝子発現 / 傷害ストレス / 植物間相互作用 / 揮発性化学シグナル

Outline of Final Research Achievements

In this study, I have focused on the mixed-planting of tomato/basil as a means of elucidating molecular mechanisms of plant-to-plant signaling. Using this system, I found that volatiles released from upper part of basil induces the expression of several signaling factor of MAP kinases and ROS-related genes, and significantly enhances wound responsive jasmonic acid signaling in tomato plants. Tomato plants exposed to basil essential oil alleviated the feeding damage of Spodoptera litura. On the other hand, essential oil derived from thyme potentiated salicylic acid signaling and induced disease resistance to tomato.

Free Research Field

環境応答