Biotic stress-responsive activation of purine catabolism: a possible role in generating physiological signals
| Project/Area Number |
26440147
|
|---|
| 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 | Hiroshima University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
KAMINAKA HIRONORI 鳥取大学, 農学部, 准教授 (40397849)
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | 活性酸素 / 植物ホルモン / アブシシン酸 / ジャスモン酸 / アラントイン / キサンチン脱水素酵素 / 病害応答 / 傷害応答 / プリン分解 / 生物ストレス / アブシジン酸 |
|---|
| Outline of Final Research Achievements |
The possible significance of biotic stress-responsive activation of purine catabolism was examined by focusing on two different groups of physiologically active molecules, reactive oxygen species (ROS) that are generated during the catabolic processes, and the phytohormones jasmonates whose levels were recently shown to be enhanced by the accumulation of allantoin，a major stress-induced purine intermediary metabolite. Reverse-genetic studies using the model plant Arabidopsis thaliana suggested that xanthine dehydrogenase, the first enzyme participating in the purine degradation pathway also known as ROS-generating enzyme, is involved in defense against a board range of microbial pathogens. Such studies also revealed that allantoin can activate jasmonate-mediated defense responses in an abscisic acid-dependent manner through the action of MYC2, a master transcriptional regulator in jasmonate signaling.
|
Report
(4 results)
Research Products
(21 results)
-
[Journal Article] Allantoin, a stress-related purine metabolite, can activate jasmonate signaling in a MYC2-regulated and abscisic acid-dependent manner2016
Author(s)
Takagi, H., Ishiga Y., Watanabe W., Konishi T., Egusa M., Akiyoshi N., Matsuura T., Mori I. C., Hirayama T., Kaminaka H., Shimada H. and Sakamoto A
-
Journal Title
J. Ext. Bot.
Volume: 67
Issue: 8
Pages: 2519-2532
DOI
Related Report
Peer Reviewed / Open Access
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] The purine metabolite allantoin can activate the MYC2-modulated JA-signaling pathway in an ABA-dependent manner2015
Author(s)
Hiroshi Takagi, Yasuhiro Ishiga, Shunsuke Watanabe, Tomokazu Konishi, Mayumi Egusa, Nobuhiro Akiyoshi, Takakazu Matsuura, Izumi C. Mori, Takashi Hirayama, Hironori Kaminaka, Hiroshi Shimada, and Atsushi Sakamoto
Organizer
Plant Biology 2015
Place of Presentation
Convention Hall, Minneapolis, Minnesota, USA
Year and Date
2015-07-26
Related Report
Int'l Joint Research
-
-
-
-
