影响镰刀菌生长与产毒的基本因素的研究  

Experimental studies on elementary factors of Fusarium's growth and toxin production

作　　者：李群伟[1] 李德安[1] 孟宪清[1] 李晓丹[1] 

机构地区：[1]中国地方病防治研究中心大骨节病研究所

出　　处：《中国地方病学杂志》1998年第6期355-358,共4页Chinese Jouranl of Endemiology

摘　　要：通过对镰刀菌生长、产毒条件的观察，发现镰刀菌生长、产毒与环境条件关系密切：适宜温度（２０℃～３０℃）、湿度（４０％）条件下，真菌生长旺盛，孢子数量多；碱性（ｐＨ＞７．０）条件则明显抑制其生长，孢子数量也减少；无机元素对生长无影响；低温尤其是变温条件下，镰刀菌易产生Ｔ－２毒素；碱性条件可明显抑制真菌产毒；温度。In this paper,growing and producing T 2 toxin conditions of Fusarium were studied.Major results are as follows ①Temperature:if temperature is higher,Fusarium grows exuberant,increases amount of conidia and decreases amount of T 2 toxin.On the contrary,in the condition of the lower temperature,Fusarium produces the maximal amount of T 2 toxin if temperature fluctuates.②Moisture:if moisture of corns is higher,Fusarium grows exuberant,increases amount of conidia and produces a great quantity of T 2 toxin,tron the contrary in the lower moisture.③pH value:alkalescent condition restrains growth and toxicity of Fusarium.④Elements:the contents of inorganic elements don't affect growth of Fusarium.⑤Above mentioned factorsexist interaction:if temperature is higher,moisture is higher and pH value is acidulous,Fusarium grows exuberant,and produces a great quantity of conidia.If these factors go in the opposite direction,Fusarium grows slow and produces a small amount of conidia.The optimum conditions of Fusarium producing T 2 toxin are the lower temperature,higher moisture and acidulous environment.The results were discussed.

关 键 词：镰刀菌 T-2毒素 生长条件 产毒条件 大骨节病 

分 类 号：R684.102[医药卫生—骨科学] Q939.5[医药卫生—外科学]