study on the physiological mechanism of tissue tolerance in the salinity tolerance in rice
| Project/Area Number |
25292012
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Crop production science
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| Research Institution | Nagoya University |
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Principal Investigator |
MITSUYA Shiro 名古屋大学, 生命農学研究科, 助教 (70432250)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMANE Koji 近畿大学, 農学部, 講師 (50580859)
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| Research Collaborator |
KOIKE Ryuhei
MASUDA Etsuko
Ismail Abdelbagi M.
Platten J. Damien
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
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| Keywords | イネ / 環境 / 耐塩性 / 生理機構 / 組織耐性 / 植物 |
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| Outline of Final Research Achievements |
The objective of the present study was to determine the impact on the growth and the mechanism (in terms of crop physiology) of tissue tolerance in the salinity tolerance of rice. New salinity tolerant rice cultivars with tissue tolerance showed better growth and less salinity-caused damages under salinized conditions in comparison to a salinity-sensitive check cultivar. However, Na+ accumulation levelin shoots of the cultivars with tissue tolerance was comparable to that of the salinity-sensitive one. It is indicated that tissue tolerance contributes to the salinity tolerance in an independent manner of salt exclusion mechanism. Also, the tissue tolerance might be related to antioxidant activity to inhibit lipid peroxidation under salinity. Within the Japanese rice cultivars used in this study, new salinity-tolerant cultivars with tissue tolerance was not screened, which indicated that the tissue tolerance can be used for improving the salinity tolerance of Japanese rice cultivars.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Root plasticity and its functional roles were triggered by water deficit but not by the resulting changes in the forms of soil N in rice2015
Author(s)
Tran, T.T., Kano-Nakata, M., Suralta, R.R., Menge, D., Mitsuya, S., Inukai, Y. and Yamauchi, A
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Journal Title
Plant and Soil
Volume: 386
Issue: 1-2
Pages: 65-76
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Genotypic variations in root system development, dry matter production and yield of rainfed lowland rice grown under different positions in the toposequence2014
Author(s)
Roel R. Suralta, Mana Kano-Nakata, Filomena Grospe, Maria Corazon Julaton, Anna Theresa Isabel O. Rebong, Andrea M. Flores, Yoshiaki Inukai, Jonathan M. Niones, Emi Kameoka, Shigenori Morita, Jun Abe, Yoichiro Kato, Yoshimichi Fukuta, Nobuya Kobayashi, Shiro Mitsuya, Akira Yamauchi
Organizer
8th Asian Crop Science Association Conference
Place of Presentation
ハノイ
Year and Date
2014-09-23 – 2014-09-25
Related Report
Invited
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