摘要
通过扫描电子显微镜观察草鱼肠道抗菌肽处理后的大肠杆菌、金色葡萄球菌、嗜水气单胞菌的形态结构的变化.结果显示,经过抗菌肽处理后的细菌形态发生变化,菌体严重变形,表面变得粗糙,出现皱褶,胞膜破裂.对草鱼肠道抗菌肽的理化性质的研究结果显示,草鱼肠道抗菌肽具有很好的热稳定性,耐胰蛋白酶特性.
Morphological changes of bacteria, E.coli, S.aureus, A.hydrophila, treated with antimicrobial peptide were observed by scanning electron microscopy. The results showed that the cells deformed severely, the surface of bacteria became rough and rumply, and the cytomembrane was ruptured after treated by antimicrobial peptide from intestine of grass carp. Moreover, research on its physicochemical properties showed antimicrobial peptide from the intestine of grass carp had an excellent thermal stability and strong resistance to trypsin activity.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第1期69-72,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省教育厅优秀青年基金项目(08B036)
中南林业科技大学青年科学基金项目(2008013B)
关键词
肠道抗菌肽
扫描电子显微镜
草鱼
理化性质
antimicrobialpeptideofintestine
SEM
grasscarp
physicochemicalproperties
