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小麦链格孢 ( Alternaria triticina)中国菌株菌落在 5～ 35℃均可生长 ,适温为1 5～ 30℃ ,2 5～ 30℃最适 ,低于 1 5℃或高于 30℃时 ,生长速度下降 ,菌落异常。适于生长的p H值为 3.5～ 9.5,最适 p H值为 4.5～ 7.5。该菌能较好地利用蔗糖、淀粉、木糖、棉子糖、乳糖和葡萄糖做碳源 ,最优氮源为硝酸钾、甘氨酸和乙酸铵。培养基的碳源或氮源种类不同时 ,菌落形态发生明显变异。小麦链格孢中国菌株和印度菌株的生物学特性基本一致
The colonies of Alternaria triticina in China grew at 5 ~ 35 ℃, the suitable temperature was 15 ~ 30 ℃, the optimum was 25 ~ 30 ℃, and the growth was less than 15 ℃ or higher than 30 ℃ Speed down, colony abnormalities. The p H value for growth is 3.5 to 9.5, and the optimum p H value is 4.5 to 7.5. The bacteria can make better use of sucrose, starch, xylose, raffinose, lactose and glucose as a carbon source, the optimal source of nitrogen potassium nitrate, glycine and ammonium acetate. When the carbon source or nitrogen source of culture medium is different, the morphology of colony is obviously changed. The biological characteristics of Alternaria alternata isolates from China and India were basically the same