ALLELOPATHIC EFFECTS OF Prorocentrum donghaiense AND Karenia mikimotoi ON EACH OTHER UNDER DIFFERENT TEMPERATURE
文献类型: 外文期刊
作者: Shen, Anglu 1 ; Xing, Xiaoli 3 ; Li, Daoji 1 ;
作者机构: 1.E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
3.Shanghai Maritime Univ, Coll Ocean Sci & Engn, Shanghai 201306, Peoples R China
关键词: Allelopathic effects;temperature;initial cell density;Prorocentrum donghaiense and Karenia mikimotoi
期刊名称:THALASSAS ( 影响因子:0.62; 五年影响因子:0.64 )
ISSN: 0212-5919
年卷期: 2015 年 31 卷 1 期
页码:
收录情况: SCI
摘要: Allelopathic effects of Prorocentrum donghaiense and Karenia mikimotoi, which are the main dinoflagellates bloom species, were investigated by using cell-free filtrate of algal culture experiments on each other under different temperatures with several combinations of initial cell densities. The growth of P donghaiense was dramatically suppressed in the K. mikimotoi culture filtrate at these initial cell densities at 16 degrees C, 20 degrees C, 24 degrees C and 28 degrees C compared with the control and the inhibitory effect of K. mikimotoi culture filtrate on the growth of P donghaiense was ordered as 16 degrees C > 20 degrees C > 24 degrees C > 28 degrees C; the growth of K. mikimotoi was suppressed in the P donghaiense culture filtrate with the highest initial cell density under four tempeartures compared with the control, and the inhibitory effect of P donghaiense culture filtrate on the growth of K. mikimotoi was ordered as 16 degrees C > 20 degrees C > 28 degrees C > 24 degrees C, while the inhibitory effect of P donghaiense culture filtrate was smaller with middle initial cell density at 20 degrees C, 24 degrees C and 28 degrees C. Besides, there was little inhibitory effect even the stimulating effect at some treatment groups when the initial cell density was low. The results indicated that the allelochemicals released by K. mikimotoi was heat-sensitive and P donghaiense was not heat-sensitive. The results also showed that the culture temperature and the initial cell density play key roles in allelopathic effects of P donghaiense and K. mikimotoi.
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