2011 Fiscal Year Final Research Report
Studies on the cross-talk between environmental stress and sugar metabolism in developing tomato fruits
| Project/Area Number |
21580075
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SUGAYA Sumiko 筑波大学, 生命環境系, 准教授 (90302372)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 糖 / アミノ酸 / 有機酸 / デンプン / ADP-glucose pyrophosphorylase / トマト / 果実 / 塩類ストレス |
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| Research Abstract |
In this research, a cross-interactions of environmental stress such a salinity and the primary metabolism was investigated in a developing fruit of tomato. It was revealed that i) salinity stress enhanced sugar accumulation by promoting carbon influx and starch accumulation in an immature fruit, ii) salinity stress enhanced amino-acid biosynthesis but it was not so effective on metabolism of organic acids. Additionally, the effect of salinity treatment on seed germination was also studied. The salinity stress significantly enhanced seed germination through activation of gibberellin biosynthesis.
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