title: [Inhibition effects and mechanisms of the entophytic fungus Trichoderma harzianum LH-7 from Aloe barbadensis].
abstract: Inhibition spectrum and antagonistic mechanism of an endophytic fungus Trichoderma harzianum LH-7, isolated from wild medicinal plant Aloe barbadensis, were investigated by in vitro culture methods against 9 kinds of plant pathogens. The results showed that nutrient competition and hyper-parasitism were the two primarily antagonist approaches that strain LH-7 adopted to inhibit the tested plant pathogens with a significant inhibition rate of 62.4%-88.4%. Moreover, the active compound from metabolites of LH-7 could cause pathogen mycelial deformities, cell wall rupture and conidial malformation, leading to the effective inhibition on pathogens growth and reproduction.
authors.forename: Li-Heng
authors.initials: LH
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Ke
authors.forename: Yi
authors.initials: Y
authors.lastname: Qiang
authors.forename: Yu
authors.initials: Y
authors.lastname: Ma
mesh_terms: D000504:Aloe / Q000382:microbiology*; D000898:Antibiosis; D010935:Plant Diseases; D014242:Trichoderma / Q000502:physiology*