• 中文核心期刊
  • 中国科技核心期刊
  • CSCD
  • ISSN 1007-6336
  • CN 21-1168/X
YE Zhi-lin, CAO Jie-ru, WU Ni, JIANG Tian-jiu. Effects of temperature, light intensity and salinity on growth and toxin production of paralytic shellfish poisoning toxins-producing dinoflagellates[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2018, 37(3): 321-325, 348. DOI: 10.12111/j.cnki.mes20180301
Citation: YE Zhi-lin, CAO Jie-ru, WU Ni, JIANG Tian-jiu. Effects of temperature, light intensity and salinity on growth and toxin production of paralytic shellfish poisoning toxins-producing dinoflagellates[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2018, 37(3): 321-325, 348. DOI: 10.12111/j.cnki.mes20180301

Effects of temperature, light intensity and salinity on growth and toxin production of paralytic shellfish poisoning toxins-producing dinoflagellates

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  • Received Date: February 21, 2017
  • Revised Date: June 25, 2017
  • Experiments were carried out to investigate the effects of light intensity(60, 120 and 200 μmol/(m2·s)), temperature(16, 22 and 28℃) and salinity(25, 30 and 35) on growth and paralytic shellfish poisoning(PSP) toxins production by Alexandrium tamarense HongKong strain(ATHK), A. minimum Taiwan strain(AMSY), A. catenella Nanhai strain(ACSY) and Gymnodinium catenatum Fangchenggang strain(GCFC). The results showed that 22℃ was the optimum growth temperature for all the four strains. Low temperature promoted PSP toxins production in all of the four strains. Except for GCFC, PSP toxins production in the other three strains were reduced with the temperature rising. The growth of ATHK and AMSY were positively correlated with light intensity. Toxin production in AMSY and GCFC were also positively correlated with light intensity. Toxicity of both ATHK and ACSY were also affected by light intensity, with maximum toxicity obtained at the light intensity of 120 μmol/(m2·s). Low light intensity inhibited toxin production in all of the four strains. ATHK, AMSY and GCFC all grew well at the salinity of 30, while ACSY grew well at the salinity of 35. Toxin production in ATHK increased with the increasing salinity. Both higher and lower salinities promoted the toxins production in AMSY and ACSY. A high level of toxin was detected in GCFC at the salinity of 30.

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