论文部分内容阅读
以不同浓度的氯化钾(KCl)和γ-氨基丁酸(GABA)处理皱纹盘鲍后期面盘幼虫,处理不同时间后,观察并分析KCl和GABA对皱纹盘鲍幼虫附着变态的诱导作用。结果表明,低浓度组,KCl(10mmol/L、12h)和GABA(10~(-6) mmol/L、6和12h)均可显著提高其附着和变态率,GABA组诱导效果优于KCl组,GABA(10~(-6) mmol/L、6h)处理组优于12h处理组。高浓度组,KCl(100、200和300mmol/L)和GABA(10~(-4)、10~(-3)和10~(-2) mmol/L)随着浓度的提升和诱导时间的延长,幼虫附着变态率降低,死亡率升高。综合考虑附着率、变态率、死亡率及实验成本等因素,低浓度的KCl(10mmol/L、12h)和GABA(10-6 mmol/L、6h)都可以广泛应用于生产中,来提高幼虫的附着变态率,增加发育的同步性,降低死亡率。
The larvae of late stage larvae were treated with different concentrations of potassium chloride (KCl) and γ-aminobutyric acid (GABA), and the induction of KCl and GABA on larval larvae metamorphosis was observed and analyzed. The results showed that KCl (10mmol / L, 12h) and GABA (10 ~ (-6) mmol / L, 6 and 12h) significantly increased the rate of attachment and metamorphosis, , GABA (10 ~ (-6) mmol / L, 6h) than the 12h treatment group. With increasing concentrations of KCl (100,200 and 300mmol / L) and GABA (10 ~ (-4), 10 ~ (-3) and 10 ~ (-2) mmol / L) Prolonged larval attachment metamorphosis rate decreased, the mortality rate increased. Considering the factors such as attachment rate, metamorphosis rate, mortality rate and experimental cost, low concentrations of KCl (10 mmol / L, 12h) and GABA (10-6 mmol / L, 6h) can be widely used in production to increase larval Of the metamorphosis rate, increase the synchronization of development, reduce mortality.