詹冬梅,吴海一,刘梦侠,王翔宇,李美真.光照强度对海黍子生长及部分生化指标的影响.渔业科学进展,2013,34(1):140-144 |
光照强度对海黍子生长及部分生化指标的影响 |
Impact of irradiances on growth and biochemical composition of Sargassum muticum |
投稿时间:2012-06-26 修订日期:2012-10-17 |
DOI: |
中文关键词: 海黍子 光照 生长 化学组成 |
英文关键词: Sargassum muticum Irradiances Growth Biochemical composition |
基金项目:国家海洋公益性行业科研专项课题(201305043;201105008-2)、国家863计划(2012AA10A413)和海洋科技推进平台与运行项目 |
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中文摘要: |
在20、40、80、120、200 μmol/m2•s光照强度下,研究了光照梯度对海黍子Sargassum muticum的生长及藻体部分生化指标的影响。结果表明,在80~200 μmol/m2•s光照范围内时,海黍子的特定生长率都比较高,且无显著差异,光照低于80 μmol/m2•s后,生长率下降,显示了海黍子适宜较高光强的特性。叶绿素a、可溶性蛋白、可溶性糖在光照20 μmol/m2•s下含量最高。褐藻多酚含量在光照200 μmol/m2时比其余光照条件下增加明显。此特性对于从海黍子中提取褐藻多酚天然产物具有一定的指导意义。 |
英文摘要: |
The main effects of irradiances(20,40,80,120,200 μmol/m2•s) on growth and biochemical composition of Sargassum muticum were studied indoors.Higher growth rates of S. muticum were observed at irradiance of 80~200 μmol/m2•s, and the maximum content of some biochemicals (chlorophyll-a, chlorophyll-b, soluble protein, and soluble sugar) were obtained at the lowest irradiance (20 μmol/m2•s). The rapid increase of algae polyphenols was observed at the highest irradiance (200 μmol/m2•s).The finding has important implication for the extraction of natural polyphenols. |
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