Molecular mechanism of floral organogenesis using orchid model plant, Psygmorchis pusilla.

为了了解兰科植物特有的花器官如花瓣、花柱、花粉等的分子机制，我们建立了柔嫩木霉的培养体系和农杆菌介导法转化体系。我们还分析了离子束和EMS诱变的最佳条件。从松材线虫和放射虫中分离到一个花同源异型基因DEFICIENS-like基因的cDNA片段。

In order to understand the molecular mechanism of the orchid-specific floral organs such as lip, column, pollinium, we established the cultivation system and Agrobacterium-mediated transformation system in Psygmorchis pusilla. We also analyzed the optimal condition for mutant generation with ion beam and EMS. cDNA fragment of a floral homeotic gene, DEFICIENS-like gene, was isolated from Psygmorchis pusilla and Habenaria radiata.