Guo Yong, Matsuoka Yuuto, Nishizawa Tomoyasu, Ohta Hiroyuki, Narisawa Kazuhiko
Ibaraki University College of Agriculture.
Graduate School of Agriculture, Ibaraki University.
Microbes Environ. 2018 Mar 29;33(1):102-106. doi: 10.1264/jsme2.ME17144. Epub 2018 Mar 20.
Bacteria harbored in/on the hyphae of the dark septate endophyte, Veronaeopsis simplex Y34, were identified as a single Rhizobium species by molecular analyses of bacterial 16S rRNA genes, and were successfully isolated from the endophyte. The Rhizobium-cured fungus was prepared thoroughly by an antibiotic treatment, thereby allowing an examination of their effects on organic substrate utilization. Assays with Biolog FF microplates revealed that the respiration potential for 52.6% of the tested compounds were significantly different between Rhizobium-harboring and -cured fungal hosts, indicating that organic substrate utilization by V. simplex Y34 was significantly influenced by the presence of the associated Rhizobium sp. VsBac-Y9.
通过对细菌16S rRNA基因的分子分析,发现定殖于深色有隔内生真菌单孢拟维罗纳菌(Veronaeopsis simplex)Y34菌丝内/上的细菌为单一的根瘤菌物种,并且已成功从该内生真菌中分离出来。通过抗生素处理彻底制备了去除根瘤菌的真菌,从而能够检测它们对有机底物利用的影响。使用Biolog FF微孔板进行的测定表明,在含有根瘤菌和去除根瘤菌的真菌宿主之间,52.6%的测试化合物的呼吸潜力存在显著差异,这表明单孢拟维罗纳菌Y34对有机底物的利用受到相关根瘤菌VsBac-Y9存在的显著影响。