木本曼陀罗内生真菌抗菌活性的筛选研究

从木本曼陀罗植物内生真菌中筛选高效抗菌活性的菌株。选择与人类和植物相关的36株病原微生物,分别对分离自木本曼陀罗(Datura arborea L.)植物的内生真菌77株进行了发酵代谢产物的抗菌活性筛选研究。结果显示:对细菌病原菌、皮肤致病真菌、植物致病真菌有抑制作用的内生真菌分别有24,9,17株,其中5株内生真菌对10种以上的供试病原菌有明显的抑制作用,活性最好的1株对20种病原菌有较强抑制活性,最大抑菌圈直径达48mm。这说明木本曼陀罗植物内生真菌抗菌能力较强,抗菌谱较广。

Screening of Antibacterial Activities of Endophytic Fungi in Datura arborea

To select endophytic fungi of good antibacterial activities from the Datura arborea,77 strains of endophytic fungi isolated from the Datura arborea were cultured in PDA culture medium to acquire metabolized production.36 pathogenic microorganisms related to human and plant diseases were chosen as indicators to study their antibacterial activities.24,9 and 17 strains were respectively proven to have inhibition to the growth of bacterial pathogenic microbes,dermal pathogenic fungi and plant pathogenic fungi.Among them,5 strains had obvious antibacterial activities to more than 10 pathogenic microbes.The best effective strain had obvious antibacterial activity to 20 pathogenic microbes.The maximum diameter of inhibition zone reached 48 mm.Endophytic fungi in Datura arboreahad good antibiotic activities in extent and intensity.