3种淡水蚌消化酶活力的初步研究  

Primary Study on the Digestive Enzyme Activities of Three Limnetic Mussels

作　　者：费志良[1] 乔慧[2] 郝忱[3] 王喆[2] 黄成[2] 

机构地区：[1]南京师范大学地理科学学院,南京210097 [2]南京大学生命科学学院,南京210093 [3]江苏省淡水水产研究所,南京210017

出　　处：《淡水渔业》2006年第4期3-6,共4页Freshwater Fisheries

基　　金：国家863计划(编号2002AA601011-02-02)"贝类控藻量效规律及其水质净化的研究"内容

摘　　要：对褶纹冠蚌、背角无齿蚌、三角帆蚌的淀粉酶、蛋白酶、纤维素酶进行了测定和研究。结果显示,3种蚌的3种消化酶的比活力大小顺序均为:褶纹冠蚌>背角无齿蚌>三角帆蚌。3种消化酶比活力在3种蚌的胃、肠部大小顺序均为:淀粉酶>纤维素酶>蛋白酶,且胃部3种酶比活力都大于肠部。A/P值比较显示,背角无齿蚌适合投放到淀粉物质含量较高的藻类富集水域,褶纹冠蚌适合用来控制蛋白质含量丰富的藻类,三角帆蚌对淀粉类和蛋白类食物消化能力介于二者之间,对蓝绿藻食物源都有很好的适应性。Activities of amylase, protease and cellulase in Cristaria plicata （ Leach）, Anodonta woodiana （Heude） and Hyriopsis cumingii （Lea）were investigated and analyzed in this paper. The comparison of the activities of three enzymes in these mussels showed that the sequence was C. plicata 〉 A. woodiana 〉 H. cumingii. And the sequence of activities of these enzymes in both stomach and intestines of each mussel was similar, viz. amylase 〉 cellulase 〉 protease. Meanwhile, all three enzyme activities in the stomach were higher than in the intestines. The ratio of amylase activity to protease activity indicated that A. woodiana was better for water areas where algae had higher contents of starchy substances, and C. plicata was better for control of algae containing abundant proteins. The digestive ability of H. cumingii in starch and proteins was between the former two mussels, so it could have good applicability to food sources of blue algae.

关 键 词：淡水蚌 淀粉酶 蛋白酶 纤维素酶 

分 类 号：S968.3[农业科学—水产养殖]