التفاصيل البيبلوغرافية
| العنوان: |
Jasmonic acid promotes germination and lipase activity in non-stratified apple embryos. |
| المؤلفون: |
Ranjan, Rajiv1, Lewak, Stanisław2 |
| المصدر: |
Physiologia Plantarum. Oct92, Vol. 86 Issue 2, p335-339. 5p. |
| مصطلحات موضوعية: |
*GERMINATION, *APPLES, *EFFECT of acids on plants, *SEEDS, *PLANT embryology, *LIPOXYGENASES |
| مستخلص: |
The effects of (-)jasmonic acid (JA) on germination of embryos isolated from dormant seeds of apple (Malus domestica Borb. cv. Antonówka) cultured in darkness or at 12-h photoperiod were studied, as well as its effects on the activity of alkaline lipase (AlkL, EC 3.1.1.3) in these embryos. The maximum sensitivity of germination to JA occurred on days 3 and 4 of embryo culture. Both germination and enzyme activity were stimulated by JA, its effect being additive to that of light. Inhibitors of lipoxygenase inhibited embryo germination and AlkL activity, both effects being partially reversed by JA treatment. We suggest that (1) JA is implicated in an endogenous complex controlling apple seed germination, and that (2) it acts independently of the mechanism triggered by light. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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