Physiological ecological effect of endophyte infection on Achnatherum sibiricum under drought stress GENETIC DIVERSITY OF NEOTYPHODIUM ENDOPHYTES ISOLATED FROM ACHNATHERUM SIBIRICUM POPULATIONS IN MID_ AND EASTERN INNER MONGOLIA STEPPE, CHINA Physio-ecological effects of endophyte infection on the host grass with elevated CO2 Effect of Endophytic fungi on growth and photosynthetic characteristics of Achnatherum sibiricum Effect of Endophytic Fungi on Photosynthetic Characteristics of Three Achnatherum sibiricum Populations in Inner Mongolia Steppe Distribution and rDNA-ITS sequence analysis of Epichlo endophyte symbiosis with Achnatherum sibiricum in mid-and eastern Inner Mongolia Steppe Effects of methyl jasmonate treatments and endophyte infection on growth of Achnatherum sibiricum.