蜜二糖酶

These two isolates presented typical characteristics of Streptococcus iniae with gram-positive cocci in chains, catalase negative and beta-hemolytic, growth under 10℃ and non-growth up 45 ℃, hydrolyzation of esculin and arginine, Voges-Proskauer, urease, and hippurate tests negative, fermentation of glucose, salicin, sucrose and starch, non-fermentation of arabinose, inulin, lactose, melibiose, raffinose and sorbitol.

实验结果表明，两菌株具有典型的海豚链球菌特性：在显微镜下为球形细胞，呈长短不一的链状排列，革兰氏染色阳性：在血琼脂平板上显示β溶血；1O℃生长，45℃不生长；接触酶阴性；水解七叶苷、精氨酸，VP试验、脲酶和马脲酸试验阴性；发酵葡萄糖、水杨苷、蔗糖和淀粉，不发酵阿拉伯糖、菊糖、乳糖、蜜二糖、棉子糖和山梨醇等。

The result demonstrated that mannitol was the best protective substance, followed by raffinose,trehalose and melibiose, L-cysteine, xanthan gum and glycerol showed slightly protective ability.

结果表明，甘露醇对α-半乳糖苷酶的保护效果最好，其次是棉籽糖、海藻糖和蜜二糖；L-半胱氨酸、黄原胶和甘油也起到了较好的保护作用。

Galactosidase or melibiase is the enzyme of hydrolysising α-galactosis bonds, it is a exoglycosidase exist in nature widely.

半乳糖苷酶也称蜜二糖酶，是催化α-半乳糖苷键水解的酶类，是广泛存在于自然界的一种外切糖苷酶。

Lactose, melibiose, melitriose and galactose had inhibition against the activity but little effect of glucose.

乳糖、蜜二糖、棉子糖和半乳糖对酶活有抑制作用，葡萄糖对酶活几乎没有影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。