The exploration of regulators for the long-distance signaling in response to phosphate-starvation

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K18567
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Nagoya University
• Principal Investigator: Tabata Ryo 名古屋大学, PhD登龍門推進室(農), 特任講師 (30712294)
• Research Collaborator: KAMIYA Takehiro 東京大学, 農学生命科学研究科, 准教授 (40579439)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 長距離シグナル / 無機栄養欠乏ストレス / 植物ホルモン

Outline of Final Research Achievements

The results of split-root culture indicated that, when some roots recognize Phosphate or Fe-starvation, a long-distance signaling is initiated in the portion of the root directly experiencing Phosphate or Fe-starvation. Then, this information transmit to another roots through “root-to-shoot-to-root” pathway. A series of genes that involved in Phosphate or Fe uptake and metabolism are concomitantly induced on the other side of the roots to compensate for the local Phosphate or Fe-deficiency.
We also identified several mobile signal candidates for long-distance signaling in response to Phosphate or Fe-starvation through the transcriptome analysis and proteome analysis using the xylem sap of Tomato.

Free Research Field

植物分子生物学　植物栄養学