Colonisation of barley roots by endophytic Fusarium equiseti and Pochonia chlamydosporia: effects on plant growth and disease.

摘要: Colonisation of plant roots by endophytic fungi may confer benefits to the host such as protection against abiotic or biotic stresses growth promotion. The exploitation these properties is great relevance at an applied level, either increase yields agricultural crops in reforestation activities. Fusarium equiseti a naturally occurring endophyte vegetation under stress Mediterranean ecosystems. Pochonia chlamydosporia nematode egg- parasitic fungus with worldwide distribution. Both have capacity colonise non-host plants endophytically and protect them phytopathogenic laboratory conditions. aim this study was evaluate root population dynamics non-axenic practical fungal species were inoculated into barley roots. Their presence effects on incidence disease caused pathogen Gaeumannomyces graminis var. tritici monitored periodically. colonised over duration experiment competed other existing colonisers. Furthermore, colonisation P. promoted growth. Although clear suppressive effect could not be detected, F. isolates reduced mean lesion length pathogen. Results work suggest that both are long-term endophytes beneficial plant.