• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Harmful Algae >A review of karenia mikimotoi: Bloom events, physiology, toxicity and toxic mechanism
【24h】

A review of karenia mikimotoi: Bloom events, physiology, toxicity and toxic mechanism

机译：mikimotoi的点评：绽放事件，生理学，毒性和毒性机制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Karenia mikimotoi is a worldwide bloom-forming dinoflagellate in the genus Karenia. Blooms of this alga have been observed since the 1930s and have caused mass mortalities of fish, shellfish, and other invertebrates in the coastal waters of many countries, including Japan, Norway, Ireland, and New Zealand. This species has frequently bloomed in China, causing great financial losses (more than 2 billion yuan, Fujian Province, 2012). K. mikimotoi can adapt to various light, temperature, salinity, and nutrient conditions, which together with its complex life history, strong motility, and density-dependent allelopathy, allows it to form blooms that are lethal to almost all marine organisms. However, its toxicity differs between subspecies and some target-species-specific toxicity has also been recorded. Significant gill disorder is observed in affected fish, to which the massive fish kills are attributed, rather than to the hypoxia that occurs in the fading stage of a bloom. However, although this species is haemolytic and cytotoxic, and generates reactive oxygen species, none of the isolated toxins or lipophilic extracts have toxic effects as extreme as those of the intact algal cells. The toxic effects of K. mikimotoi are strongly related to contact with intact cells. Several reasonable hypotheses of how and why this species blooms and causes mass mortalities have been proposed, but further research is required.
机译：Karenia mikimotoi是Karenia属的一种世界范围内形成花的鞭毛藻。自1930年代以来就已观察到这种藻类大量繁殖，并在包括日本，挪威，爱尔兰和新西兰在内的许多国家的沿海水域造成大量鱼类，贝类和其他无脊椎动物的死亡。该物种在中国经常开花，造成巨大的经济损失（福建省，2012年超过20亿元人民币）。 mikimotoi可以适应各种光照，温度，盐度和营养条件，再加上其复杂的生活史，强大的运动能力和依赖密度的化感作用，使其能够形成几乎对所有海洋生物都具有致命性的花朵。但是，其毒性在亚种之间有所不同，并且还记录了一些针对特定目标物种的毒性。在受影响的鱼类中观察到明显的ill病，这是由于大量鱼类被杀死所致，而不是因为花朵衰落阶段发生的缺氧。但是，尽管该物种具有溶血性和细胞毒性，并会产生活性氧，但分离出的毒素或亲脂性提取物都没有像完整的藻类细胞那样具有极端的毒性作用。 mikimotoi的毒性作用与与完整细胞的接触密切相关。已经提出了几种合理的假设，说明该物种如何以及为何开花并导致大量死亡，但是还需要进一步的研究。

著录项

  • 来源
    《Harmful Algae》 |2019年第12期|101702.1-101702.18|共18页
  • 作者

    Li Xiaodong; Yan Tian; Yu Rencheng; Zhou Mingjiang;

  • 作者单位

    Fujian Agr & Forestry Univ Inst Oceanol Coll Anim Sci Key Lab Marine Biotechnol Fujian Prov Fuzhou 350002 Fujian Peoples R China|Chinese Acad Sci Inst Oceanol Key Lab Marine Ecol & Environm Sci Qingdao 266071 Shandong Peoples R China;

    Chinese Acad Sci Inst Oceanol Key Lab Marine Ecol & Environm Sci Qingdao 266071 Shandong Peoples R China|Qingdao Natl Lab Marine Sci & Technol Lab Marine Ecol & Environm Sci Qingdao 266071 Shandong Peoples R China|Chinese Acad Sci Ctr Ocean Mega Sci Qingdao Shandong Peoples R China;

    Chinese Acad Sci Inst Oceanol Key Lab Marine Ecol & Environm Sci Qingdao 266071 Shandong Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Harmful algal blooms; Karenia mikimotoi; Physiology; Toxicity; Toxic mechanism;

    机译：有害的藻华;ki菜生理;毒性;毒性机制;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号