...
首页> 外文期刊>Marine biology >Temporary cyst enables long-term dark survival of Scrippsiella hangoei (Dinophyceae)
【24h】

Temporary cyst enables long-term dark survival of Scrippsiella hangoei (Dinophyceae)

机译:临时性囊肿可延长汉氏链球菌的黑暗生存期

获取原文
获取原文并翻译 | 示例
           

摘要

We examined the dark survival strategy of the cold-water dinoflagellate Scrippsiella hangoei from the Baltic Sea. Cultures of S. hangoei were placed in dark and light and we followed the morphological developmentand, determined respiration rate and activity of extracellular leu-cine aminopeptidase (LAP). S. hangoei had LAP activity in the light, but not in the dark, suggesting that the degradation and use of organic substrates is not part of the dark survival strategy. After prolonged time in darkness ( > 5 days), S. hangoei started to shed flagella and theca, and produced a previously undescribed temporary cyst. The transformation from vegetative cell into the temporary cyst initially increased respiration rate tenfold, but after the transformation the respiration rate decreased to almost undetectable levels. The presented temporary cyst enables survival through long periods in dark by reducing the respiration rate.
机译:我们研究了来自波罗的海的冷水鞭毛鞭毛甲藻的黑暗生存策略。 hangoei的培养物置于黑暗和明亮的环境中,我们追踪其形态发展,并测定呼吸速率和细胞外亮氨酸氨基肽酶(LAP)的活性。 hangoei S. hangoei在光照下具有LAP活性,而在黑暗中则不具有,这表明有机底物的降解和使用不是黑暗生存策略的一部分。在黑暗中长时间(> 5天)后,S。hangoei开始脱落鞭毛和卵泡膜囊,并产生了先前未描述的临时性囊肿。从营养细胞到临时囊肿的转化最初将呼吸速率提高了十倍,但是在转化之后,呼吸速率降低到了几乎无法检测到的水平。提出的临时性囊肿可通过降低呼吸频率在黑暗中长期存活。

著录项

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