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甘薯蔓割病是由Fusarium oxysporum f.sp.batatas侵染的典型镰刀菌导管病,危害极大。病菌由土壤通过秧苗基部或根部的伤口(土壤传染),或由带菌种薯通过导管侵入秧苗(秧苗传染),在导管组织内繁殖,致使罹病植株发生全株性枯萎,死亡。甘薯和其它作物不同,无论在健康株还是罹病株组织内,特别是在其导管部位,均可看到有真菌栖息,可以高频率地分离获得非致病性F.oxysporum。作者把这种菌在甘薯栽秧前
Sweet potato sprouting is a typical Fusarium disease that is infested with Fusarium oxysporum f.sp.batatas and is extremely harmful. Pathogens inhabiting in the ductal tissues by the soil through the wounds (soil infection) at the base or roots of the seedlings or through inoculation of seedlings with seedlings of infected bacteria through the catheter (seedling infection), causing the entire diseased plants to wilt and die. Sweet potato and other crops are different, no matter in healthy or diseased plant tissues, especially in the catheter site, can be found in the fungal habitat, high-frequency separation of non-pathogenic F. oxysporum. The author of this bacteria in sweet potato before planting