热带作物学报2011，Vol.32Issue(6)：1060-1063,4.DOI:10.3969/j.issn.1000-2561.2011.06.015
菌根化五唇兰组培苗的光合生理特性
Effect on Photosynthesis Characteristic of Doritis pulcherrima Lindl.Inoculated with Mycorrhizal Fungi
摘要
Abstract
44In order to study the effect of orchid endomycorrhizal fungi on orchid growth, the endogenetic fungi from the root of the wild plant of Doritis pulcherrima Lindl were inoculated into axenic seedlings of D. Pulchenima in vitro in pot. Firstly, The liquid with endogenetic fungi was used to spout on the root of D. Pulchenima. Then the plant survival rate and photosynthesis index were investigated after 18 months symbiotic cultivation of the seedling of D. Pulchenima. The results showed that the plant survival rate, photosynthetic rate (Pn), stomatal conductance (Cond), transpiration rate (7V), the content of chlorophyll in leaves of D. Pulchenima and the leaf area of pre plant were all increased, but intercelluar C02 concentration (Ci) in leaves of D. Pulchenima was decreased. And the treatment with dmf-49 was the best. The leaves Pn of D. Pulchenima was very low, and it was under the 1.50 u,mol ?m-2-s-1. Conclusion was that photosynthesis and plant growth vigor were improved under symbiotic cultivation with useful endogenetic fungi from the root of wild D. Pulchenima isolated.关键词
五唇兰/内生菌根真菌/光合生理Key words
Doritis pulchenima Lindl/Endomycorrhizal fungi/Potosynthesis physiology分类
园艺学与植物营养学引用本文复制引用
李洪立,何云,申志斌,杨福孙,宋希强,周兆德..菌根化五唇兰组培苗的光合生理特性[J].热带作物学报,2011,32(6):1060-1063,4.基金项目
国家自然科学基金项目(30660153 （）
30860233) （）
海南省自然科学基金项目(30808):海南大学校基金项目(hd09xm68). （30808）
