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本实验对新红星苹果果实和种子的乙烯产生、ACC含量和ACC氧化酶活性进行了测定。结果表明,果实成熟之前,种子一直产生低水平的乙烯,但高于同期果实产生的乙烯。8月中旬,乙烯开始在子房室内积累,且浓度不断增加。近果心果肉(由子房壁的中外层和花托的髓部发育而成)的ACC含量一直高于近果皮果肉(由花托的皮部发育而成)。果实乙烯大量产生前,各心皮的腹缝线处组织变得疏松,革质化的内果皮上产生许多袭缝。根据实验结果,推测种子产生的乙烯在果实由内向外成熟过程中起重要调控作用。
In this experiment, the ethylene production, ACC content and ACC oxidase activity of apple fruits and seeds were determined. The results showed that the seeds had been producing low levels of ethylene until the fruit matured, but higher than the ethylene produced by the fruits of the same period. In mid-August, ethylene began to accumulate in the ovary and its concentration increased. The ACC content of near pulp flesh (developed from the medial and ovary layers of the parietal walls and the receptacle hallucination) was consistently higher than that of the pericarp pulp (developed from the dermis of the receptacle). A large number of fruit ethylene production, the carpels of the abdominal suture tissue becomes loose, leathery endocarp produced many cracks. According to the experimental results, it is speculated that the ethylene produced by seeds plays an important regulatory role in the fruit ripening from inside to outside.