Abstract:Spores of Trichoderma reesei FS10-C were made into Trichoderma sp. preparation with alfalfa powder by solid-state fermentation. And a pot experiment was carried out to investigate effect of the preparation on plant growth and Cu accumulation of Elsholtzia splendens in soils spiked with 0,100,200 and 400 mg/kg of CuSO4. The results indicated that the plant biomass of Elsholtzia splendens showed an increasing trend in soils with all spiked Cu concentrations after applying of the preparation, except for shoot dry weight in soils with external Cu levels of 400 mg/kg. The preparation increased NH4OAc-extractable Cu in all Cu contaminated soils significantly in comparison with that in the control (P<0.05), and also led to an increasing trend in Cu accumulations of all plants, except for that in shoot in soils with external Cu level of 100 mg/kg. Cu accumulations were significantly enhanced in shoots in soils with external Cu levels of 200 and 400 mg/kg, in roots in soils with external Cu levels of 100 mg/kg and in individual plants in soils with external Cu levels of 100 and 400 mg/kg (P<0.05). The results suggested that this Trichoderma reesei FS10-C preparation could be a potential bioremediation agent for Cu contaminated soil by promoting growth of Elsholtzia splendens and increasing Cu phytoavailability in soil.
田晔, 滕应, 赵静, 李振高, 马文亭, 张明旭, 骆永明. 木霉制剂对海州香薷生长和铜吸收的影响[J]. 中国环境科学, 2012, 32(6): 1098-1103.
TIAN Ye, TENG Ying, ZHAO Jing, LI Zhen-Gao, MA Wen-Ting, ZHANG Ming-Xu, LUO Yong-Ming. Effect of Trichoderma sp. preparation on plant growth and Cu accumulation of Elsholtzia splendens. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(6): 1098-1103.