两种抗生素对褶皱臂尾轮虫种群增长的影响  被引量:8

Effects of Two Antibiotics on the Population Growth of Rotifer Brachionus plicatilis

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作  者:王金秋[1] 周叶平[1] 林隽姬[1] 王天宇[1] 

机构地区:[1]复旦大学生命科学学院,遗传学研究所,遗传工程国家重点实验室,上海200433

出  处:《复旦学报(自然科学版)》2008年第3期347-353,共7页Journal of Fudan University:Natural Science

基  金:国家自然科学基金资助项目(39770579);上海市教委跨世纪人才基金--“曙光计划”资助项目(99SG05);上海市教育委员会重点学科资助项目(L990204)

摘  要:采用种群累积培养法,研究了两种抗生素,即氯霉素(Chloromycetin)和烟酸氟哌酸(Nicotinic Norfloxacinum)对褶皱臂尾轮虫(Brachionus plicatilis)种群增长的影响.结果表明,不同剂量的氯霉素对轮虫种群的增长有明显的影响(P〈0.01),浓度为0.0125mg/mL时可促进种群增长,当浓度增加到0.0250-0.0500mg/mL时,则有不同程度的抑制作用,0.0500mg/mL的浓度抑制作用明显;不同剂量的烟酸氟哌酸对轮虫种群的增长亦有明显的影响(P〈0.01),低剂量组(0.2500和0.5000mg/mL)可促进种群增长,而高剂量组(0.75和1.00mg/mL)则为抑制作用.The effects of two antibiotics, Chloromycetin and Nicotinic Norfloxacinum, on population growth of rotifer (Brachionus plicatilis) were studied by means of population accumulation culture. The population growth of rotifer was significantly(P〈0.01) affected when exposed to different doses of Chloromycetin, of which a concentration of 0.012 5 mg/mL could promote rotifer population to grow. When concentration increases between 0. 025 0-0. 050 0 mg/mL, however, the growth was inhibited, and the inhibition is significant at the concentration of 0. 050 0 mg/mL. The dosage of Nicotinic Norfloxacinum affects rotifers' population growth significantly ( P 〈 0.01 ), low dosage (0.25 and 0.50 mg/mL) promotes growth and high dosage (0.75 and 1. 00 mg/mL) inhibits it.

关 键 词:褶皱臂尾轮虫 抗生素 氯霉素 烟酸氟哌酸 种群增长 

分 类 号:Q958.8[生物学—动物学]

 

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