植物花发育的分子机理研究进展_张云.pdf

　2003, 20 (5):589～601 Chinese Bulletin of Botany ① 张　云　刘青林 (　　100094) 　、。, 、、、、; 。, 。 , 、 ;。 。 　, , , , Proceedings on Molecular Mechanism of Plant Flower Development ① ZHANG Yun 　LIU Qing_Lin (Department of Ornamental Horticulture Landscape Architecture, China Agricultural University , Beijing 100094) Abstract 　Flower development an be distinguished by three phases:flowering determination, flow- er evo ation, and floral organ development.Several pathways regulate the swit h from vegetative to reprodu tive development, in luding photoperiod, light quality, vernalization, autonomous pathway, gibberellin, and arbohydrates indu tion, while repression pathways also exist in plants.Distin t in- du tive pathways an a tivate the expression of flower meristem identity genes, thus ause the transi- tion from shoot api al meristem to flower meristem.Floral organ development is ontrolled by floral organ identity genes, whose exa t expression was a tivated by flower meristem identity genes and ontrolled by various positive and negative regulators.In addition, there is a kind of genes that de- termine the symmetry of flower.Resear h on the me hanism of flower development an ontribute to the basi theory resear h as well as later appli ation . Key words　Flower development, Mole ular me hanism, Flowering determination, Flower evo a- tion, Floral organ development 1990 Yanofsky AGAMOUS , , 。, 。(flowering determination)、(flower evo ation) ① 。Author for orresponden e. 　:, , 1978 。2000 , 。 。, 1963 。 1996 , 。。 :2002-07-01　　:2002-12-30　　: 5　　90 20 (floral organ development)。 1　 , ,。 , (,2000)。: 、、、, ;,。 、(Levy and Dean, 1998)。