Study of molecular mechanisms underlying phototropic responses independent of auxin lateral distribution
| Project/Area Number |
24657027
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Niigata University |
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Principal Investigator |
HAGA Ken 新潟大学, 自然科学研究科, 研究員 (50382031)
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| Co-Investigator(Renkei-kenkyūsha) |
SAKAI Tatsuya 新潟大学, 自然科学系, 准教授 (10360554)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 光屈性 / コロドニー・ウエント説 / オーキシン / PIN / シロイヌナズナ / 根 / 偏差成長 |
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| Research Abstract |
Plants are growing to or away from light direction to adapt to their light environments. The responses, so-called phototropism, have been well-studied for a long time. Auxin, one of plant hormones, is known to stimulate plant growth and thought to be involved in phototropism by changing its endogenous distribution in responses to light irradiation. The present study analyzed phototropic responses of Arabidopsis seedling roots, and demonstrated existence of molecular mechanisms underlying phototropic responses independent of auxin asymmetrical lateral distribution. Our investigations strongly suggested that light stimulation directly controls regulatory components involved in auxin-mediated responses, such as auxin receptors and/or auxin responsive transcription factors. The present results contribute to establishment of a new model responsible for phototropic responses.
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Report
(3 results)
Research Products
(25 results)
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[Journal Article] Identification of rice Allene Oxide Cyclase mutants and the function of jasmonate for defence against Magnaporthe oryzae2013
Author(s)
Riemann, M., Haga, K., Shimizu, T., Okada, K., Ando, S., Mochizuki, S., Nishizawa, Y., Yamanouchi, U., Nick, P., Yano, M., Minami, E., Takano, M., Yamane, H., and Iino, M.
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Journal Title
The Plant Journal
Volume: 74
Issue: 2
Pages: 226-238
DOI
Related Report
Peer Reviewed
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