Effects of Ectomycorrhizal Fungi(Pisolithus tinctorius) of Masson Pine (Pinus massoniana)on Soil Microbial Metabolic Function under Simulated Acid Rain
This study aims to explore the effects of ectomycorrhizal colonization on soil microbial community and function of Pinus massoniana seedlings grown in acidified soils by using sole-carbon-source-utilization (BIOLOG).we set three levels of acid treatments,pH3.5,pH4.5 and pH5.6 (control),and applied two ectomycorrhizal treatments (inoculated Pisolithus tinctorius,non-inoculated) in a pot experiments.Masson pine seedlings were inoculated with P.tinctorius (ECM) for 210 days in acidified forest soil originating from Chongqing,Southwest China.The results showed that:1) Compared with the control treatment (pH 5.6),high acid stress reduced the average vitality,soil microbial richness and diversity indices; 2) With the control treatment,ectomycorrhizal fungi counteracted the effects of mild acid on soil microbial community; 3) With high acid stress treatments,ectomycorrhizal fungi increased soil microbial activity,richness and diversity,and changed the utilization pattern of carbon source.
ectomycorrhizal fungiacid rainsoil microbial communitymasson pine
国家科技期刊平台
NSTL
万方数据
维普
