2009 Fiscal Year Final Research Report
Molecular genetic basis of weed seed dormancy and germination
| Project/Area Number |
20880034
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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| Allocation Type | Single-year Grants |
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| Research Field |
Crop science/Weed science
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| Research Institution | National Agricultural Research Organization |
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Principal Investigator |
IMAIZUMI Toshiyuki National Agricultural Research Organization, 中央農研・雑草バイオタイプ・総合防除研究チーム, 契約研究員 (10509235)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 種子休眠 / 発芽 |
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| Research Abstract |
Abscisic acid (ABA) and gibberellins (GAs) are well known to be involved in dormancy and germination control. To determine the molecular mechanism of seed dormancy in Monochoria vaginalis, a simultaneous analysis of ABA, GA and metabolites of ABA was established. We revealed a pathway of ABA catabolism playing a predominant role in seed dormancy of M.vaginalis using this method. NCED genes and ABA-GT genes which confer ABA biosynthesis or catabolism were isolated.
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