乙酰水杨酸在番茄果实发育期间对蔗糖代谢相关酶活性的影响

研究不同浓度乙酰水杨酸(ASA)对番茄品种‘辽园多丽’果实发育期间蔗糖代谢相关酶影响的结果表明:ASA可抑制果实的维管束和胶质胎座中酸性转化酶(AI)和中性转化酶(NI)活性,而提高蔗糖合成酶(SS)与蔗糖磷酸合成酶(SPS)活性;心室隔壁和中果肉中ASA的作用与此相反。ASA促进果实维管束中可溶性糖积累主要通过调控AI和NI活性实现,而在胶质胎座中主要通过调控SS活性实现;在中果肉和心室隔壁中主要通过调控SS和AI活性实现。

Effects of Acetylic Salicylic Acid on the Activities of Sucrose Metabolism Related Enzymes during Fruit Development of Tomato (Lycopersicon esculentum Mill.)

The related enzyme activities of sucrose metabolism during fruit development of Lycopersicon esculentum cv. 'Liaoyuanduoli' was studied by different concentrations of acetylic salicylic acid (ASA) treatment. The results showed that ASA inhibited the activities of acid invertase (AI) and neutral invertase (NI), increased the activities of sucrose synthase (SS) and sucrose phosphate synthase (SPS) in the fruit vascular bundle and pectinic placenta; but these were contrary in dissepiment and pericarp. The effect of ASA on the accumulation of soluble sugars in vascular was mainly controlled the activities of AI and NI and controlled the SS activity in pectinic placenta, while it was controlled the activities of SS and AI in dissepiment and pericarp.