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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kato-Noguchi, Hisashi |
| Description | Country affiliation: Japan Author Affiliation: Kato-Noguchi H ( Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan. hisashi@ag.kagawa-u.ac.jp) |
| Abstract | Germination of barley seeds was inhibited by 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one (DIMBOA) and 2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one (DIBOA) at concentrations greater than 0.03mmol/L, and 6-methoxy-benzoxazolin-2(3H)-one (MBOA) and benzoxazolin-2(3H)-one (BOA) at concentrations greater than 0.1mmol/L. These benzoxazinoids also inhibited the induction of alpha-amylase activity in the barley seeds, and inhibited gibberellin-induced alpha-amylase activity in de-embryonated barley seeds. Significant inhibition in the germination and alpha-amylase induction were observed as concentrations of DIMBOA, DIBOA, MBOA and BOA increased. These results suggest that DIMBOA, DIBOA, MBOA and BOA may inhibit the germination of barley seeds by inhibiting the gibberellin-induced process, leading to alpha-amylase production. The inhibitory activities of germination and alpha-amylase induction of DIMBOA and DIBOA were greater than those of their degraded substances MBOA and BOA, respectively, and the inhibitory activities of DIMBOA and MBOA were greater than those of their demethoxylated analogues DIBOA and BOA, respectively. |
| File Format | HTM / HTML |
| ISSN | 01761617 |
| Issue Number | 18 |
| Volume Number | 165 |
| e-ISSN | 16181328 |
| Journal | Journal of Plant Physiology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2008-12-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Botany Benzoxazines Pharmacology Gibberellins Hordeum Drug Effects Enzymology Seeds Alpha-amylases Metabolism Chemistry Enzyme Induction Germination Biosynthesis Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science Agronomy and Crop Science |
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