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对生长中后期大田花生连体叶片喷施外源多胺、多胺合成前体提高了叶片多胺含量 ,延缓了叶片衰老过程中叶绿素及蛋白质含量的下降 ,提高了活性氧清除酶类的活性 ,降低了膜脂过氧化产物丙二醛含量 ;喷施多胺合成抑制剂 MGBG[甲基乙二醛 -双 (脒基腙 ) ],对叶片多胺含量及衰老无显著影响。
Exogenous polyamines were sprayed on the plantation peanut conjoined leaves in the middle and later growth stages. The polyamine synthesis precursors increased the polyamine content in the leaves, delayed the decline of chlorophyll and protein content during leaf senescence, and increased the activity of active oxygen scavenging enzymes , Reducing the malondialdehyde (MDA) content of membrane lipid peroxidation products; spraying MGBG [methylglyoxal-bis (amidrazone hydrazone)], a polyamine synthesis inhibitor, had no significant effect on polyamine content and senescence in leaves.