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不同氮源对微小亚历山大藻生长和毒素产生的影响

张清春 于仁诚 周名江 王云峰 颜天 李钧

张清春, 于仁诚, 周名江, 王云峰, 颜天, 李钧. 不同氮源对微小亚历山大藻生长和毒素产生的影响[J]. 海洋学报, 2005, 27(6): 138-145.
引用本文: 张清春, 于仁诚, 周名江, 王云峰, 颜天, 李钧. 不同氮源对微小亚历山大藻生长和毒素产生的影响[J]. 海洋学报, 2005, 27(6): 138-145.
ZHANG Qing-chun, YU Ren-cheng, ZHOU Mingjiang, WANG Yun-feng, YAN Tian, LI Jun. Effects of four nitrogen substrates on growth and toxin production of Alexandrium minutum(Dinophyceae)[J]. Haiyang Xuebao, 2005, 27(6): 138-145.
Citation: ZHANG Qing-chun, YU Ren-cheng, ZHOU Mingjiang, WANG Yun-feng, YAN Tian, LI Jun. Effects of four nitrogen substrates on growth and toxin production of Alexandrium minutum(Dinophyceae)[J]. Haiyang Xuebao, 2005, 27(6): 138-145.

不同氮源对微小亚历山大藻生长和毒素产生的影响

基金项目: 国家重点基础研究资助项目(2001CB409704);国家自然科学基金资助项目(40076030);中国科学院知识创新工程资助项目(KZCX2-206);国家科技攻关计划课题资助项目(2001BA804A20)

Effects of four nitrogen substrates on growth and toxin production of Alexandrium minutum(Dinophyceae)

  • 摘要: 通过尿素、氯化铵、酵母浸出粉和硝酸钠等氮源对微小亚历山大藻(Alexandrium minutum)生长及毒素产生的影响研究,分析了微小亚历山大藻对不同氮源利用状况的差异.结果表明,在氮饥饿条件下,加入硝酸钠和酵母浸出粉能显著促进微小亚历山大藻的生长;高浓度的氯化铵在加入后对微小亚历山大藻有一定的毒性效应,表现为生长停滞,但毒性效应在5 d后消失,并得到与添加硝酸钠及酵母浸出粉相似的增长速率0.21 d-1;添加尿素对微小亚历山大藻的生长没有显著促进作用.在四种氮源中,尿素对微小亚历山大藻毒素产生的刺激作用也最弱,在稳定期每个细胞藻细胞毒素含量维持在6.00~8.00 fmol;添加硝酸钠、氯化铵和酵母浸出粉的藻细胞在稳定期毒素含量分别达到11.85,12.86和14.64 fmol.硝酸钠和氯化铵刺激藻毒素产生的效果比酵母浸出粉更为直接.四种含氮营养盐对微小亚历山大藻毒素组成的影响都很小.
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出版历程
  • 收稿日期:  2004-10-27
  • 修回日期:  2005-08-02

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