The Broad Spectrum Inhibitory Effect Study of 3 Rare Earth Salts Used for Microbial Inoculant Additive
Three rare earth salts:La(NO3)3,LaCI3 and Ce(NO3)3 were used to study their broad spectrum inhibitory effect on micro-organisms to look for an effective additive for microbial inoculant.YMA solid media containing different concentrations of RE3+ (200,400,600,800,1000 mg L-1) were exposed to air and been smeared soil solution,respectively,for contamination study.Results indicating that for air microbes,the inhibitory effect on microbe number of the 3 rare earths was Ce(NO3)3 > LaCl3 > La(NO3)3,and for soil microbes,it was La(NO3)3 > Ce(NO3)3 > LaCl3.On the whole,microbe diameters decreased as RE3+ concentration increase,except that mass microbes occurred in high density.Actinomycetes were the most sensitive microbes to RE3+ stress,which could be inhibited at low RE3+ concentrations (200 and 400 mg L-1),followed by bacteria and mould.
lanthanum nitrate cerium nitrate lanthanum chloride antimicrobial
Pinghui Huo Jianfeng Li Shangli Shi Shuqing Zhang Liyu Chen Yangyang Miao Yuping Jia Shuai Huang
Key Laboratory for Grassland Ecosystem of Ministry of Education, College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Peoples Republic of China;Sino-U.S.Centres for Grazingland Ecosystem Sustainability, Lanzhou, 730070, Peoples Republic of China
国际会议
石家庄
英文
166-171
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）