【摘要】 披碱草(Elymus dahuricus Trucz.)可以为内生真菌所侵染。通过观察内生真菌侵染和未侵染的披碱草植株在不同盐胁迫水平下生理指标的变化,内生真菌侵染植株的分蘖数、地上和地下干重、脯氨酸和可溶性糖含量以及根冠比均显著高于未侵染内生真菌植株。内生真菌可能通过促进渗透调节物质的累积和根系生长而显著提高披碱草的耐盐性。更多还原

【Abstract】 Elymus dahuricus can be infected by endophytic fungi,the project aims to investigate the effect of endophyti fungi on the salt tolerance of the plant by comparing the performance of endophyte-infected and non-infected plants of Elymus dahuricus under different salt stress levels.Under salt stress,the tiller number,aboveground and underground dry weight,proline and soluble sugar content and root shoot ratio of endophyte-infected plants were significantly higher than those of non-infected plants.These results show that fungal endophytes can significantly improve the salt tolerance of Elymus dahuricus,possibly through inducing the accumulation of organic osmolytes and the development of root system.更多还原