Basic studies on the control mechanisms of stomatal density.
| Project/Area Number |
23688015
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Bioproduction chemistry/Bioorganic chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2011-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Keywords | 植物ペプチドホルモン / 気孔 / stomagen / ペプチドホルモン / 植物 / EPF family |
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| Outline of Final Research Achievements |
Stomagen is a plant peptide hormone that controls stomatal density in Arabidopsis epidermis. We have tried to identify stomagen receptor to clarify the mode of action of the hormone by photo-affinity labeling using chemically synthesized probe, but we could not have achieved. Recently, another research group have identified the receptor. The function of stomagen was conserved in Chinese cabbage (Brassica rapa var. pekinensis). So far, stomagen was supplied by chemical synthesis that causes high cost. We developed a new and simple method for stomagen production using Brevibacillus secretory expression system. In addition, the structure-activity relationship revealed that a small peptide at the central part of the peptide was able to mimic the stomagen function. The peptide will be a potential lead of agricultural agents that can increase stomatal density of agricultural crops, and consequently the biomass and/or yield may improve.
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Report
(5 results)
Research Products
(12 results)
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[Journal Article] Differential Effects of Peptides Stomagen, EPF1, and EPF2 on Activation of the MAP Kinase MPK6 and the SPCH Protein Level.2013
Author(s)
Jewaria PK, Hara T, Tanaka H, Ko ndo T, Betsuyaku S, Sawa S, Sakagami Y, Aimoto S, Kakimoto T.
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Journal Title
Plant Cell Physiol
Volume: 59
Issue: 8
Pages: 1253-1262
DOI
NAID
Related Report
Peer Reviewed
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