Bacteria from Arbuscular Mycorrhizal Fungi Spores Gigaspora sp. and Glomus sp. : Their Antagonistic Effects towards Soilborne Fungal Pathogens and Growth Stimulation of Gigaspora sp. in vitro

摘要

Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin-top:0cm;mso-para-margin-right:0cm;mso-para-margin-bottom:10.0pt;mso-para-margin-left:36.0pt;text-align:justify;text-justify:inter-ideograph;text-indent:-17.85pt;line-height:115%;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;} Eight isolates bacteria were isolated from surface sterilized endomycorrhizal spores of Gigaspora sp and six isolates bacteria isolated from Glomus sp . The tests to ? the antagonists against fungal pathogens and stimulation of endomycorrhizae hyphal development of Gigaspora sp ? in vitro ? showed that there were three.isolates (GG1, GG5 and GL3) that have the ability to inhibit the growth of pathogens and enhance the development of hyphae in vitro . Enzymatic activity test showed that there were seven isolates that produce cellulase and protease activity that is GG1, GG3, GG6, GG7, GL2, GL4 and GL6 ? Key words : Bacteria, Endomycorrhizal Spores, Antagonistic effects, Stimulation effects, Fungal pathogens