水生生物学报2017，Vol.41Issue(4)：853-859,7.DOI:10.7541/2017.106
云南盘鮈消化系统解剖学、组织学及消化酶活性研究
ANATOMICAL, HISTOLOGICAL OBSERVATIONS OF DIGESTIVE SYSTEM AND DIGESTIVE ENZYME ACTIVITY INDISCOGOBIO YUNNANENSIS
摘要
Abstract
The present study investigated the structure and function of the digestive system inDiscogobio yunnanensis by morphological, histological and zymologic methods. Results showed that the mouth ofD. yunnanensis was inferior, and the digestive tract was composed of oral cavity, esophagus and gut without an obvious stomach. Many taste buds and goblet cells were distributed in oral epithelia. The esophagus was short and thick with abundant goblet cells in the mucous layer. The intestinal index was 5.06±0.61, and the gut was the largest part, which hovered in the body cavity. According to the morphology, the gut with abundant villi was divided into the cranial, middle and posterior parts. Di-gestive gland was hepatopancreas, and the liver was divided into two parts, with pancreas diffused in. The different di-gestive parts had diverse digestive enzyme activities. The activities of lipase in different digestive parts ranged as fol-lows: hepatopancreas>foregut>midgut>hindgut, while those of trypsase, amylase and alkaline phosphatase were fore-gut>midgut>hepatopancreas>hindgut. These results suggest the adaptation of this fish in feeding fixed algaes.关键词
云南盘鮈/消化系统/解剖学/组织学/消化酶Key words
Discogobio yunnanensis/Digestive system/Anatomy/Histology/Digestive enzyme分类
生物科学引用本文复制引用
赵健蓉,赵月月,葛海龙,苏胜齐,王志坚..云南盘鮈消化系统解剖学、组织学及消化酶活性研究[J].水生生物学报,2017,41(4):853-859,7.基金项目
重庆市科委项目(cstc2016shmsx80089)资助[Supported by the Chongqing Science and Technology Commission (cstc2016shmsx80089)] （cstc2016shmsx80089）
