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[目的]探讨不同促控剂对草莓成花过程中Ca2+-CaM及同化物含量变化的影响。[方法]以草莓品种宝交早生的当年生子苗为试材,用10 mmol/LEGTA、5 mmol/LTFP和2μmol/LA2318(7清水为对照),对草莓植株进行叶面喷洒试验。[结果]叶片中的Ca2+含量在花芽分化始期时有一积累高峰,花序分化期再次积累成峰值;而顶芽中CaM的含量高峰与叶片Ca2+峰值同时出现或稍后。A23187处理可使植株Ca2+和CaM在花芽分化始期的高峰提前;EGTA处理使植株的Ca2+的含量下降,但CaM的含量变动规律性不大;而TFP可降低植株的CaM含量,但对植株的Ca2+影响不大。各处理植株的可溶性糖、还原糖和淀粉含量在成花前均处于高水平。植株的蛋白质含量在花序原始体出现时形成峰值,随后缓慢降低。[结论]该研究为阐明Ca2+-CaM在草莓花芽分化中的作用机制提供依据。
[Objective] The research aimed to discuss the effects of different promoters on the content of Ca2 + -CaM and assimilate in strawberry flower process. [Method] The strawberry seedlings were treated with 10 mmol / L EGTA, 5 mmol / L LFP and 2 μmol / LA2318 (7 water as control). [Result] The content of Ca2 + in leaves had a peak of accumulation at the beginning of flower bud differentiation, and then peaked again at inflorescence differentiation stage. The content of CaM in the top bud appeared at the same time or later than that of leaf Ca2 + peak. A23187 could increase the peak of Ca2 + and CaM in early stage of flower bud differentiation. EGTA could decrease the content of Ca2 +, but the content of CaM did not change regularly. However, TFP could reduce the content of CaM in plant, Has little effect. The soluble sugar, reducing sugar and starch content of all the treated plants were all at a high level before flowering. The protein content of the plants peaked when the inflorescence primordium appeared and then slowly decreased. [Conclusion] The study provided the basis for clarifying the mechanism of Ca2 + -CaM in strawberry flower bud differentiation.