学术
多环芳烃对3种赤潮微藻类胡萝卜素含量的影响及其对UV—B辐射的响应
王云彗[1,2] 肖慧[1] 唐学玺[1]
[1]中国海洋大学生态学实验室,山东青岛266003 [2]烟台大学数学系,山东烟台264005
摘 要:
评价UV-B辐射增强对海洋生态系统的影响，通过实验生态学的方法，研究3种多环芳烃——菲、芘和蒽对3种赤潮微藻——赤潮异弯藻、塔玛亚历山大藻和中肋骨条藻类胡萝卜素含量的影响。结果表明：低浓度的菲、芘和蒽处理使3种赤潮微藻的类胡萝卜素含量有所提高，而高浓度处理则降低藻细胞内的类胡萝卜素含量。菲、芘和蒽处理对赤潮异弯藻类胡萝卜素含量的96h半抑制剂量分别为0．098，0．124和0．139mg·L^-1，对中肋骨条藻的96la半抑制剂量分别为0．120。0．147和0．155mg·L^-1，对塔玛亚历山大藻的96h半抑制剂量分别为0．128，0．153和0．162mg·L^-1。在菲、芘和蒽处理钓同时。附加辐射剂量为0．3J·m^-2的UV—B辐射处理，3种赤潮微藻的类胡萝卜素含量显著降低。[著者文摘]
文章出处:
《中国海洋大学学报》-2007年37卷4期 -631-635页
栏目信息:
文献标识码:
A
文章编号:
1672-5174（2007）04-631-05
The Effects of Polycyclic Aromatic Hydrocarbons on the Carotenoid Content of Three Species of Red Tide Microalgae and Its Response to UV-B Radiation
WANG Yun-Hui, XIAO Hui, TANG Xue-Xi （1. Ecology Laboratory, Ocean University of China, Qingdao 266003, China; 2. Department of Mathmatics, YanTai University, YanTai 264005, China）
Abstract:
The carotenoid content responses of Heterosigrna akashiwo, Skeletonema costaturn and Alexandrium＇tarnarense Balech to polycyclic aromatic hydrocarbons treatment were studied by experimental-ecological methods. The results showed that lower concentrations of phenanthrene, pyrene and anthracene could increase the carotenoid content of Heterosigrna akashiwo, Skeletonema costaturn and Alexandriurn tarnarense ＇Balech. However, higher concentrations of phenanthrene, pyrene and anthracene exhibited degradation to carotenoid. The 96 h. ECs0 values of phenanthrene, pyrene and anthracene treatment to the carotenoid content of Het- erosigrna akashiw were 0. 098, 0. 124 and 0. 139 mg·L^-1 respectively, and those to that of Skeletonerna costaturn were 0. 120, 0. 147 and 0. 155 mg·L^-1, respectively and were 0. 128, 0. 153 and 0. 162 mg·L^-1, respectively for Alexandriurn tarnarense Balech. When the three species of red tide microalgae were exposed to 0.3 J·m^-2 UV-B radiation and the three kinds of polycyclic aromatic hydrocarbons simultaneously, the relative carotenoid contents of Heterosigrna akashiwo, Skeletonerna costaturn and Alexandriurn tarnarense Balech decreased more obviously.[著者文摘]
Key words:
UV-B radiation; Polycyclic Aromatic Hydrocarbons; Heterosigrna akashiwo ; Skeletonerna costaturn; Alexandriurn tarnarense Balech; Carotenoid
基金资助:
国家自然科学基金项目（30270258）;教育部新世纪优秀人才支持计划项目（NCET-05-0597）资助
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