Effects of Achnatherum inebrians/Neotyphodium endophyte symbiont on microflora and nutrient of soil

Drunken horse grass (Achnatherum inebrians), is a kind of intoxicating grass growing on native grassland in Northwestern China. The aim of this research is to determine the effects of endophyte infected (E+) A.inebrians on the quantity of soil microbes and nutrient components of rhizosphere soil of accompanying species. The results indicated that the quantity of soil fungi was 1.33-1.55 times than accompanying species in Sangke, Ganjia and Yuzhong, where soil bacteria was 1.60-2.65 times. The measurement results of soil nutrients showed that organic matter, total nitrogen, available phosphorus and available potassium of rhizosphere soil of A.inebrians were higher than those of accompanying species. However, the content of total phosphorus and total potassium had no significant effects on the rhizosphere soil of A.inebrians and accompanying species.