摘要
实验室条件下研究了起始食物浓度和温度对舞行波豆虫(Bodo saltans)种群生长的影响.在起始食物浓度分别为2.10×106,2.80×106,4.20×106,6.40×106mL-1的条件下,B.saltans种群生长率分别为0.116 6,0.137 6,0.120 2,0.112 8 h-1,相应的世代时间分别为5.90,5.00,5.80,6.10 h.温度对B.saltans种群生长有显著影响,当培养温度分别为10,20,30℃时,B.saltans种群生长率分别为0.0500,0.124 6,0.1203h-1,相应的世代时间分别为13.86,5.60,5.80 h.温度从10℃升高到20℃时,B.saltans的种群生长率升高2.49倍,相应世代时间减少8.3 h;而当培养温度从20℃升高到30℃时种群生长率和世代时间变化不大.与个体大小相近的其他异养鞭毛虫类群(如领鞭毛类)相比,波豆虫具有种群增长迅速、世代时间短的特点.
The effects of initial food concentration and culture temperature on the population growth of heterotrophic flagellate Bodo saltans were studied under laboratory conditions.When the initial food concentrations were 2.10×106,2.80×106,4.20×106 and 6.40×106 mL-1,the population growth rates were 0.116 6,0.137 6,0.120 2 and 0.112 8 h-1,and the generation time were 5.90,5.00,5.80 and 6.10 h,respectively.Culture temperature also had significant effect on the population growth of B.saltans.When the culture temperature were 10,20 and 30 ℃,the population growth rates of B.saltans were 0.050 0,0.124 6 and 0.120 3 h-1,and the generation time were13.86,5.60 and 5.80 h,respectively.When culture temperature increased from 10 ℃ to 20 ℃,B.saltans had a 2.49 times increase in population growth rate,the corresponding generation time reduced 8.3 h;and when the culture temperature increased from 20 ℃ to 30 ℃,there were no significant changes in the maximum population growth rate and generation time.Compared with other heterotrophic flagellate groups（ex.Choanoflagellates） of similar size,Bodo was characterized by rapider population growth and shorter generation time.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2011年第2期186-191,共6页
Journal of Hebei University(Natural Science Edition)
基金
河北大学博士基金资助项目(2007096)
河北省自然科学基金资助项目(C2009000172)
关键词
异养鞭毛虫
舞行波豆虫
种群
起始食物浓度
温度
heterotrophic flagellate
Bodo saltans
population
initial food concentration
temperature
