Effects of Main Allelopathic Substances of Euphorbia jolkinii on Species Diversity of Soil Microorganisms in Montane Meadow
To investigate the regulatory role of Euphorbia jolkinii allelopathic substances in the invasion process of its population.In this study,we measured and analyzed the effects of addition of 4-Nitrophenol and 2-Phenylethylamine on soil microorganisms in the montane meadow by using artificially controlled addition of allelochemical solutions,indoor culture of soil samples,and macro-genome sequencing technology.The results showed that the addition of 4-Nitrophenol had no significant effect on the species composition,abundance and diversity of soil bacteria and fungi,while the addition of 2-Phenylethylamine altered the soil bacterial Acidobac-teria,Proteobacteria,Candidatus_Nitrosotalea and Bradyrhizobium,and significantly increased soil bacterial species diversity and evenness,as well as fungal richness(P<0.05).In conclusion,the addition of Euphorbia jolkinii 2 major allelochemical solutions increased the number of soil microbial species and promoted the growth and reproduction of soil microorganisms in the montane meadow,but there were differences in the effects of the different substances on the diversity of soil microorganisms,and the extent of the effect of 2-Phenylethylamine was even higher than that of 4-Nitrophenol.
Euphorbia jolkiniiAllelopathic substances additionSoil microorganismsRelative abundance of dominant bacteriaSpecies diversity
万方数据
维普
