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通过对白莎蜜1号及其叶色黄化突变体9388-1以及二者杂交后代(F1)不同生育期叶片叶绿素含量、过氧化物酶活性及丙二醛含量等指标的测定,研究叶色黄化突变体各生理指标的变化。结果表明,叶色黄化突变体9388-1的叶绿素含量低于白莎蜜1号,叶色黄化性状在F1代并没有表达,仍呈现绿色;由于叶绿体发育不完全,叶绿素的含量和比例发生变化,引发了其他生理指标的改变;白莎蜜1号、9388-1和F1代的抗氧化酶活性存在较为明显的差异,9388-1的酶系发生了改变;9388-1的丙二醛(MDA)含量开花期略低于白莎蜜1号,其他生育期均高于白莎蜜1号,杂交F1代的MDA含量在各生育期均低于白莎蜜1号。
The leaf chlorophyll content, peroxidase activity and malondialdehyde (MDA) content of leaves of Baisha 1 and its chlorotic mutant 9388-1 and their F1 hybrids during the different growth stages were determined. Changes of Various Physiological Indexes of Yellowing Mutants. The results showed that the leaf chlorophyll content of chlorophyll mutant 9388-1 was lower than that of Baishami 1 and the chlorophyll content and proportion of chlorophyll content were still not shown in F1 generation. Which led to the change of other physiological indexes. The antioxidant enzyme activities of Baisha 1, 9388-1 and F1 were obviously different, and the enzyme system of 9388-1 changed. The content of aldehyde (MDA) in flowering stage was slightly lower than that of Baisha honey 1 and the other growth stages were higher than that of Baisha honey 1. The content of MDA in hybrid F1 was lower than that of Baisha 1 at each growth stage.