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韩国谷物的真菌学调查及镰刀菌分离株产生霉菌毒素的情况

Mycological survey of Korean cereals and production of mycotoxins by Fusarium isolates.

作者信息

Lee U S, Jang H S, Tanaka T, Toyasaki N, Sugiura Y, Oh Y J, Cho C M, Ueno Y

出版信息

Appl Environ Microbiol. 1986 Dec;52(6):1258-60. doi: 10.1128/aem.52.6.1258-1260.1986.

Abstract

The fungal species isolated from Korean cereals (barley, polished barley, wheat, rye, and malt) were Alternaria spp., Aspergillus spp., Chaetomium spp., Drechslera spp., Epicoccum sp., Fusarium spp., and Penicillium spp., etc. The number of Fusarium strains isolated was 36, and their ability to produce Fusarium mycotoxins on rice was tested. Nivalenol (NIV) was produced by Fusarium graminearum (7 of 9 isolates), Fusarium oxysporum (3 of 10 isolates), and Fusarium spp. (7 of 15 isolates). Of 15 isolates of Fusarium spp., 6 formed deoxynivalenol (DON). Fusarenon-X and 3-acetyl-DON were produced by most NIV- and DON-forming isolates, respectively. Zearalenone was produced by 3 isolates of F. graminearum, 1 isolate of Fusarium equiseti, and 11 isolates of Fusarium spp. T-2 toxin was not produced by any Fusarium isolates. The highest concentrations of mycotoxins produced by Fusarium isolates were 77.4 (NIV), 5.3 (DON), 138.3 (fusarenon-X), 40.6 (3-acetyl-DON), and 23.2 (zearalenone) micrograms/g.

摘要

从韩国谷物(大麦、精磨大麦、小麦、黑麦和麦芽)中分离出的真菌种类有链格孢属、曲霉属、毛壳菌属、德氏霉属、附球菌属、镰刀菌属和青霉属等。分离出的镰刀菌菌株有36株,并对它们在大米上产生镰刀菌毒素的能力进行了测试。禾谷镰刀菌(9株中有7株)、尖孢镰刀菌(10株中有3株)和镰刀菌属(15株中有7株)产生雪腐镰刀菌烯醇(NIV)。在15株镰刀菌属菌株中,有6株形成脱氧雪腐镰刀菌烯醇(DON)。大多数产生NIV和DON的分离株分别产生镰刀菌烯酮-X和3-乙酰-DON。3株禾谷镰刀菌、1株木贼镰刀菌和11株镰刀菌属菌株产生玉米赤霉烯酮。任何镰刀菌分离株均未产生T-2毒素。镰刀菌分离株产生的霉菌毒素最高浓度分别为77.4(NIV)、5.3(DON)、138.3(镰刀菌烯酮-X)、40.6(3-乙酰-DON)和23.2(玉米赤霉烯酮)微克/克。

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