【摘要】 利用抗利福平和拮抗病原真菌双抗标记法,通过浸种、灌根和涂叶等接种方式测定了红树植物内生海洋细菌CⅢ-1在不同陆生植物中的定殖。结果表明:该菌株的内生宿主范围较广,可以通过种子、叶片表面以及根际土壤等进入辣椒、番茄、茄子、白菜、生菜、豇豆、小麦、玉米、水稻等多种植物体内定殖。在辣椒体内及其根际土壤中定殖动态测定发现,不同接种方法菌株在辣椒体内和根际土壤中的定殖动态有所不同,与茎内相比,CⅢ-1菌株更易于在辣椒叶片及其根际土壤中定殖,定殖时间约为10d￣15d。更多还原

【Abstract】 Tagged by the resistance to Rif. (300μg/ml) and the plant pathogen, the colonization of the endophytic marine bacterium CⅢ-1, isolated from Bruguiera gymnorrhiza, in plants was tested with seed dipping, leaf daubing and root watering. The result showed that this strain could colonize in many plants, such as capsicum, tomato, eggplant, cabbage, lettuce, cowpea, wheat, corn and rice. The colonization dynamics of the strain in the capsicum showed that the bacterial density of the strain in the capsicum and its rhizosphere soil varied with different inoculations, and it was easier to colonize in the leaf and rhizosphere soil than in the stem, and the colonization duration in the leaf and rhizosphere soil lasted for 10d~15d.更多还原