【摘要】 从采摘后贮存自然发病的赣南脐橙中分离出4种病原真菌,根据菌株形态学观察和rDNA-ITS序列分析进行鉴定,这4种病原真菌分别为意大利青霉(Penicillium italicum)、指状青霉(Penicillium digitatum)、柑橘链格孢(Alternaria citri)和芽枝状枝孢(Cladosporium cladosporioides)。生物保鲜剂2-苯乙醇(2-PE)可有效地抑制这4种病原真菌的孢子萌发和菌丝生长,但对不同致腐菌抑菌效果差异显著(P<0.05)。2-PE对芽枝状枝孢霉、指状青霉菌、柑橘链格孢和意大利青霉菌菌丝生长的最小抑菌浓度分别为1.4、1.8、2.2和2.4 g/L。更多还原

【Abstract】 Four citrus pathogens were isolated from rotten orange of Southern Jiangxi Province after harvesting. According to the observation of the morphological characteristics of fungi and the analysis of rDNA-ITS sequence, the four citrus pathogens were identified as Penicillium italicum, Penicillium digitatum, Alternaria citri and Cladosporium cladosporioides. The biopreservative 2-phenylethyl alcohol can effectively inhibit the spore germination and hyphae growth of the four citrus pathogens, but the antibacterial effects of different saprophytic fungi were significantly different(P<0.05). The minimum inhibitory concentrations for the hyphae growth of C. cladosporioides, P. digitatum, A. citri and P. italicum were 1.4, 1.8, 2.2 and 2.4 g/L, respectively.更多还原