脂氧合酶对唐菖蒲籽球形成和膨大的影响

园艺学报 ›› 2008, Vol. 35 ›› Issue (1): 87-93.

脂氧合酶对唐菖蒲籽球形成和膨大的影响

何秀丽;苑智华;徐哲;义鸣放^*

（中国农业大学观赏园艺与园林系，北京 100094）

收稿日期:2007-07-04 修回日期:2007-11-12 出版日期:2008-01-25 发布日期:2008-01-25
通讯作者: 义鸣放

Effects of Lipoxygenase on the Cormels Formation and Enlargement in Gladiolus hybridus

HE Xiu-li, YUAN Zhi-hua, XU Zhe, and YI Ming-fang^*

(Department of Ornamental Horticulture and Landscape Architecture，China Agricultural University, Beijing 100094，China)

Received:2007-07-04 Revised:2007-11-12 Online:2008-01-25 Published:2008-01-25

摘要/Abstract

摘要： 为探讨脂氧合酶(LOX-1)对唐菖蒲籽球形成和膨大的影响，以'Rose Supreme'和'Advanced Red'两个品种为试材，研究了籽球的生长发育与LOX-1活性，内源茉梨酸甲酯(MJ)、蔗糖、淀粉和纤维素含量变化之间的关系。结果表明，唐菖蒲叶片中测不到LOX-1活性，匍匐茎中LOX-1活性和内源MJ含量最高，籽球数量较多的品种'Rose Supreme'LOX-1活性和MJ含量显著高于'Advanced Red'，说明LOX-1在唐菖蒲籽球形成和膨大过程中起着重要作用，其作用途径可能是通过影响茉莉酸类化合物(JAs)的生物合成对籽球的发生和生长进行调控。在唐菖蒲籽球生长发育过程中，新球和籽球中蔗糖、淀粉和纤维素含量都不同程度升高，并且与LOX-1活性呈正相关，说明蔗糖、淀粉和纤维素对唐菖蒲新球和籽球的形成和膨大起着重要作用。

关键词: 唐菖蒲, 籽球, 脂氧合酶, 茉梨酸甲酯, 碳水化合物

Abstract: To investigate the effects of lipoxygenase (LOX-1) on the cormels formation and enlargement in Gladiolus hybridus, with 'Rose Supreme' and 'Advanced Red' as materials, LOX-1 activity, endogenous methyl jasmonate (MJ), sucrose, starch and cellulose contents were examined during the cormels growth. The results showed that LOX-1 activity and endogenous MJ content in 'Rose Supreme' were higher than those in 'Advanced Red', with highest activties and contents in stolons, but not detected in leaves. It suggested that LOX-1 might regulate the development and growth of Gladiolus cormels through affecting the JAs biosynthesis cycles. During the cormels growth, the contents of sucrose, starch and cellulose, with positive correlations with LOX-1 activity, showed different increase in corm and cormels, which also suggested that sucrose, starch and cellulose played important roles in the formation and enlargement of gladiolus corms and cormels.

Key words: Gladiolus hybridus, cormel, lipoxygenase, methyl jasmonate, carbohydrate

中图分类号:

S 682.2⁺4

何秀丽;苑智华;徐哲;义鸣放. 脂氧合酶对唐菖蒲籽球形成和膨大的影响[J]. 园艺学报, 2008, 35(1): 87-93.

HE Xiu-li;YUAN Zhi-hua;XU Zhe;and YI Ming-fang . Effects of Lipoxygenase on the Cormels Formation and Enlargement in Gladiolus hybridus[J]. ACTA HORTICULTURAE SINICA, 2008, 35(1): 87-93.

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