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本文以红熟期的番茄 (Lycopersicon esculentum Mill.)果实为材料 ,主要研究病菌侵染与果实中乙烯生成 ,ACC合成酶和脂氧合酶 (L OX)的关系 ,以及不同乙烯处理对感病果实 ACC合成酶和脂氧合酶 (L OX)活性的影响。结果表明 :用葡萄孢菌 (Botrytis cinerea)接种采后番茄果实在 2 5℃下存放7d后 ,感病果实的乙烯释放量显著增加 ,ACC合成酶和脂氧合酶 (LOX)活性也明显提高。在贮藏环境中增加乙烯吸收剂可明显地延缓葡萄孢菌的发病 ,而且 ACC合成酶和 L OX酶的活性也相对较低。由此证明病菌侵染与果实乙烯释放量 ,以及与 ACC合成酶和 L OX酶之间存在明显的正相关
In this paper, the fruit of Lycopersicon esculentum Mill. Was used as material to study the relationship between pathogen infection and ethylene production, ACC synthase and lipoxygenase (L OX), and the effects of different ethylene treatments on susceptible Effects of ACC synthase and lipoxygenase (L OX) activity in fruits. The results showed that the ethylene production of susceptible fruits increased significantly and the activities of ACC synthase and lipoxygenase (LOX) were significantly increased after inoculated with Botrytis cinerea for 7 days at 25 ℃. . Increasing the ethylene absorbent in the storage environment can significantly delay the onset of Botrytis cinerea, and the activities of ACC synthase and L OX enzyme are also relatively low. Thus, it was proved that there was a significant positive correlation between pathogen infection and fruit ethylene release, as well as with ACC synthase and L OX enzyme