西北林学院学报2013，Vol.28Issue(4)：111-115,208,6.DOI:10.3969/j.issn.1001-7461.2013.04.23
不同水分条件下丛枝菌根真菌对刺槐生长和光合特性的影响
Effects of Arbuscular Mycorrhizal Fungi on Growth and Photosynthetic Characteristics of Robinia pseudoacacia under Different Water Conditions
摘要
Abstract
Effects of two arbuscular mycorrhizal fungi (Glomus intraradices and G.mosseae) on the growth and photosynthetic characteristics of Robinia pseudoacacia under different water conditions (well watered and water stressed) were studied.The results revealed that arbuscular mycorrhizal fungi (AMF) increased plant height,ground diameter,dry mass of the shoot as well as dry mass of the root of R.pseudoacacia under both well watered and water stressed conditions.Under well watered condition,AMF notably increased water use efficiency,while photosynthetic characteristics such as net photosynthetic rate and transpiration rate were not influenced.Under water stressed condition,AMF significantly increased net photosynthetic rate,stomotal conductance,intercellular CO2 concentration,transpiration rate,Fm,Fv/Fm as well as qP,while water use efficiency was decreased.It was concluded that AMF promoted the growth of R.pseudoacacia via different mechanisms under different water conditions.Under well watered condition,AMF boosted growth of R.pseudoacacia by increasing water use efficiency as improving photosynthesis under water stressed condition.关键词
刺槐/丛枝菌根/水分胁迫/光合作用Key words
Robinia pseudoacacia/ arbuscular mycorrhiza/ water stress/ photosynthesis分类
农业科技引用本文复制引用
田帅,刘振坤,唐明..不同水分条件下丛枝菌根真菌对刺槐生长和光合特性的影响[J].西北林学院学报,2013,28(4):111-115,208,6.基金项目
国家自然科学基金项目(31170567,31270639,31170607) （31170567,31270639,31170607）
长江学者和创新团队项目(IRT1035) （IRT1035）
教育部博士点基金项目(20100204110033,20110204130001). （20100204110033,20110204130001）
