Stimulatory effect of cytokinins and interaction with IAA on the release of lateral buds of pea plants from apical dominance
Lateral buds of pea plants can be released from apical dominance and even be transformed into dominant shoots when repeatedly treated with synthetic exogenous cytokinins (CKs). The mechanism of the effect of CKs, however, is not clear. The results in this work showed that the stimulatory effects of...
| Veröffentlicht in: | Journal of plant physiology. - 1979. - 160(2003), 9 vom: 24. Sept., Seite 1059-63 |
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| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2003
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| Zugriff auf das übergeordnete Werk: | Journal of plant physiology |
| Schlagworte: | Journal Article Benzyl Compounds Cytokinins Indoleacetic Acids Polyurethanes Purines co(polyether)polyurethane Polyethylene Glycols 3WJQ0SDW1A indoleacetic acid mehr... |
| Zusammenfassung: | Lateral buds of pea plants can be released from apical dominance and even be transformed into dominant shoots when repeatedly treated with synthetic exogenous cytokinins (CKs). The mechanism of the effect of CKs, however, is not clear. The results in this work showed that the stimulatory effects of CKs on the growth of lateral buds and the increase in their fresh weights in pea plants depended on the structure and concentration of the CKs used. The effect of N-(2-chloro-4-pyridyl)-N'-phenylurea (CPPU) was stronger than that of 6-benzylaminopurine (6-BA). Indoleacetic acid (IAA) concentration in shoot, IAA export out of the treated apex and basipetal transport in stems were markedly increased after the application of CPPU or 6-BA to the apex or the second node of pea plant. This increase was positively correlated with the increased concentration of the applied CKs. These results suggest that the increased IAA synthesis and export induced by CKs application might be responsible for the growth of lateral shoots in intact pea plants |
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| Beschreibung: | Date Completed 09.02.2004 Date Revised 09.01.2024 published: Print Citation Status MEDLINE |
| ISSN: | 1618-1328 |