Effect of Phenolic Acid Application on Gibberellin-Induced Internodal Elongation in Floating Rice
| Accession number;05A0858047 |
| Title;Effect of Phenolic Acid Application on Gibberellin-Induced Internodal Elongation in Floating Rice |
| Author;AZUMA TETSUSHI(Kobe Univ., Kobe, Jpn) OKITA NAOKO(Kobe Univ., Kobe, Jpn) NANMORI TAKASHI(Kobe Univ., Kobe, Jpn) YASUDA TAKESHI(Kobe Univ., Kobe, Jpn) |
Journal Title;Japanese Journal of Tropical Agriculture
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Journal Code:F0874A
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ISSN:0021-5260
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VOL.49;NO.3;PAGE.215-219(2005)
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| Figure&Table&Reference;FIG.3, TBL.1, REF.14 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Internodes of floating rice (Oryza sativa L.) elongate rapidly when treated with gibberellic acid (GA3). When p-coumaric or ferulic acid was applied to floating rice stem segments that had been induced to elongate rapidly by treatment with GA3, the extent of internodal elongation decreased in a dose-dependent manner; in particular, ferulic acid was more effective. Application of p-coumaric or ferulic acid also increased the contents of p-coumaric, ferulic and 5-5-diferulic acids in the cell walls of the internodal elongation zone. In these stem segments, the content of ferulic or 5-5-diferulic acid showed a higher correlation with the decrease in internodal elongation compared with the content of p-coumaric acid. These facts suggest that the deposition of ferulic and 5-5-diferulic acids in cell walls is one of the causes of the reduction of internodal elongation in floating rice. (author abst.) |
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