文献类型：期刊文献

中文题名：温度、光照对小环藻生长和叶绿素a含量的影响

英文题名：Effects of Temperature and Illumination on Growth and Chlorophyll-a of Cyclotella sp.

作者：曾艳艺[1];黄翔鹄[1]

机构：[1]广东海洋大学水产学院,广东湛江524025

年份：2007

卷号：27

期号：6

起止页码：36

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：CSTPCD

基金：科技部农业科技成果转化资金项目(2006GB2E000224);广东省科技计划项目(206A20305003)

语种：中文

中文关键词：小环藻;生长;叶绿素a含量;温度;光照

外文关键词：Cyclotella sp.; growth; chlorophyll-a content ; temperature; illumination

中文摘要：用单因子和正交实验方法研究了温度和光照对小环藻生长和叶绿素a含量的影响。结果表明，温度对小环藻生长和叶绿素a含量有极显著影响（P〈0．01），当温度在30～40℃时比增长率和叶绿素a含量分别为0．37～0．38d^-1。和1084．4～1214．2μg·L^-1，均显著高于其他温度组。光照对小环藻生长和叶绿素a含量有极显著影响（P〈0．01），当光照强度从29．25～146．26μmol·m^-2．s^-1时比增长率最高，为0．30～0．32d^-1：而叶绿素a含量则在9．75～58．50μmol·m^-2．s^-1。时最高。达709．7～731．8μg·L^-1，极显著高于其他照度组。正交实验结果表明：在35℃、87．75μmol·m^-2．s^-1条件下种群增长最快，比增长率为0．4402d^-1；在30℃、29．25μmol·m^-2．s^-1时，叶绿素a含量最高，为1746．6μg·L^-1。

外文摘要：The effects of temperature and illumination on the growth rate and chlorophyll-a content of this species were studied by single factor experiments and orthogonal test. The ANOVA results showed that when temperature shifted from 30 to 40 ℃, illumination intensity shifted from 29.25μmol·m^-2.s^-1 to 146.26μmol·m^-2.s^-1, the specific growth rate of the algae reached 0.37-0.38 d1, 0.30-0.32 d1, respectively, being larger than other grades. Chlorophyll-a content was the highest when temperature was from 30 ＂C to 40 ＂C, and illumination was from 9.75μmol·m^-2.s^-1 to 58.50 μmol·m^-2.s^-1, up to 1 084.4 - 1 214.2μg·L^-1, 709.7-731.8μg·L^-1, respectively. The orthogonal test showed that when it was cultured at 35 ℃ and 87.75μmol·m^-2.s^-1, the algae grew fastest. Its specific growth rate reached 0.440 2 d1. The chlorophyll-a was at its highest, up to 1 746.6μg·L^-1 when the species was cultured at 30℃ and 29.25μmol·m^-2.s^-1.