水产学报2018，Vol.42Issue(12)：1906-1915,10.DOI:10.11964/jfc.20170910975
四种抗生素对共培养的萱藻丝状体和膨胀色球藻的影响
Inhibitory effect of four antibiotics on Chroococcus turgidus co-cultured to the filaments of Scytosiphon lomentaria
摘要
Abstract
In order to suppress the growth of Chroococcus turgidus and finally eliminate it during the amplification process of filaments of Scytosiphon lomentaria, the effects of four antibiotics: cefotaxime sodium (CTX), amoxicillin (AM), tetracycline (TC) and erythromycin (EM) on the growth of filaments of S. lomentaria and C. turgidus, which were co-cultured in the research, were studied by experimental ecology methods in this paper. Results indicated that CTX can inhibit the growth of C. turgidus significantly at the concentration of 50 and 100mg/L. On the 20th day, their average daily growth rates were 3.84% and -0.96%, respectively, which were significantly lower than 19.21% in the control group without antibiotics, therefore ensuring the normal growth and development of filaments of S. lomentaria. Both C. turgidus and the filaments of S. lomentaria were not suppressed by AM at the concentrations between 50 and 1 000 mg/L, so AM can not eliminate C.turgidus in the co-culture system. TC could inhibit the growth of C.turgidus and the filaments of S. lomentaria dramatically at the concentration of 100 and 200 mg/L, but the cytoplasm of filaments of S.lomentaria presented atrophy. EM inhibited the growth of C.turgidus significantly at the concentrations between 0.10 mg/L and 1.00 mg/L, when the concentration was higher than 0.50 mg/L, the growth of filaments of S.lomentaria also were inhibited, even to death.关键词
萱藻/膨胀色球藻/丝状体/抗生素/共培养Key words
Scytosiphon lomentaria / Chroococcus turgidus/ filaments/ antibiotics/ co-culture分类
农业科技引用本文复制引用
张红霞,宫相忠*,高伟,沈世军,王吉,张静..四种抗生素对共培养的萱藻丝状体和膨胀色球藻的影响[J].水产学报,2018,42(12):1906-1915,10.基金项目
国家"八六三"高技术研究发展计划(2012AA10A413) （2012AA10A413）
山东省重点研发计划(2016GSF115042) （2016GSF115042）
