Production of isoflavone genistein in transgenic IFS tobacco roots and its role in stimulating the development of arbuscular mycorrhiza

文献类型： 外文期刊

第一作者： Tan, Zhijing

作者： Tan, Zhijing;Hu, Yuanlei;Lin, Zhongping;Liu, Rongrong

作者机构：

关键词： Arbuscular mycorrhiza;Genistein;IFS;Phosphate transporter;SYMRK

期刊名称：ACTA PHYSIOLOGIAE PLANTARUM （ 影响因子：2.354； 五年影响因子：2.711 ）

ISSN： 0137-5881

年卷期： 2012 年 34 卷 5 期

页码：

收录情况： SCI

摘要： Flavonoids and isoflavonoids are secondary metabolites in plants. With the goal of obtaining isoflavonoids from a wide range of plants, a few key studies have proven that isoflavonoids can be produced in non-leguminous plants by transgenic engineering. Many earlier studies investigate genistein biosynthesis in leaves and petals of isoflavone synthase (IFS) transgenic tobacco. However, most reports do not attempt to analyze quantification of genistein or do not check the presence of genistein in transgenic plant roots. In addition, little is known about the influence of genistein on arbuscular mycorrhiza (AM). In this paper, we reported that genistein was obtained from transgenic IFS tobacco roots. In addition, we revealed that endogenous genistein and 10 mu g g(-1) exogenous genistein enhanced the development of AM symbiosis. We also revealed the relative expression levels of pertinent genes during the development of AM symbiosis. Our results suggest that genistein plays a positive role in the development of AM symbiosis in tobacco roots.

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