不同外源激素对香草兰花芽分化的影响  

Effects of Plant External Hormones on Flower Bud Differentiation of Vanilla

作　　者：王辉[1,2] 顾文亮[1,2] 庄辉发[1] 赵青云[1,2] 朱自慧[1] 宋应辉[1] 

机构地区：[1]中国热带农业科学院香料饮料研究所,海南万宁571533 [2]农业部香辛饮料作物遗传资源利用重点实验室,海南万宁571533

出　　处：《热带农业科学》2016年第11期72-76,共5页Chinese Journal of Tropical Agriculture

基　　金：海南省自然科学基金项目(No.20153103)

摘　　要：为探究香草兰花芽分化调控措施及相关机理,在花芽分化前期,以分别喷施细胞分裂素(6-BA)、脱落酸(ABA)、生长素(IAA)和赤霉素(GA)为处理,以清水为对照,分析各处理条件下功能叶内源激素和营养物质含量变化,并统计各处理对花芽分化率的影响。结果表明:6-BA和ABA处理均能增加功能叶中玉米素核苷(ZR)和ABA含量,提高其在花芽分化过程中的蛋白质、可溶性糖和淀粉含量;IAA处理能提高花芽分化中后期功能叶IAA、ABA、ZR和GA含量,却降低整个分化过程中蛋白质、可溶性糖和淀粉的含量;GA处理降低了ZR和ABA含量,对蛋白质和淀粉含量影响不大;除GA处理外,6-BA、ABA、IAA处理均在一定程度上提高了花芽分化率,以6-BA最为显著,可参考在生产上施用。To investigate the regulation measures on vanilla flower bud formation and related mechanism,the plants were sprayed with water（CK）,6-Benzylaminopurine（6-BA）,abscisic aci（ABA）,auxin（IAA） and gibberellin（GA）individually before the onset of floral induction. The results showed that the treatment of6-BA increased the contents of zeatin riboside（ZR）,ABA,protein,soluble sugar and starch of functional leaves,and so did the treatment of ABA. The treatment of IAA increased the hormone contents of IAA,ABA,ZR and GA in the late stages of floral differentiation,but it reduced the contents of protein,soluble sugar and starch at full flowering stage. Spraying GA reduced the contents of ZR and GA. The treatments of 6-BA,ABA,IAA could enhance the ratio of flower bud formation,6-BA treatment got the most significant effect,which could be applied in production.

关 键 词：香草兰 花芽分化 外源激素 内源植物激素 

分 类 号：Q946.885[生物学—植物学]