Hormone-Directed Transport of 32P in Malus sylvestris Seedlings1
| Autor: | A. H. Hatch, L. E. Powell |
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| Rok vydání: | 1971 |
| Předmět: | |
| Zdroj: | Journal of the American Society for Horticultural Science. 96:230-234 |
| ISSN: | 2327-9788 0003-1062 |
| Popis: | Studies were conducted to determine the effect that plant hormones such as auxins, gibberellins, and cytokinins might have on the mobilization of 32P in apple seedlings grown in the greenhouse. Prior to the hormone treatments the seedlings were defoliated and the apex removed to avoid competition. Experiments with 32P indicated that auxins, gibberellins, and cytokinins could direct the transport of 32P especially when used in various mixtures. It was found that 32P could be mobilized acropetally, basipetally, and into and out of leaves depending on the area treated with the hormones. Their effect in mobilizing 32P was less evident in seedlings that had ceased growth, with subsequent terminal bud formation, than in growing seedlings. It was also found that 32P was mobilized through the phloem and required the synthesis of protein. |
| Databáze: | OpenAIRE |
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