赫氏圆石藻

赫氏圆石藻（学名：Emiliania huxleyi），经常被缩写为“EHUX”，是一种遍布全球水域的钙板金藻。它被用来研究夏季的温跃层后营养耗尽的水中形成的大范围水华。就像其他的钙板金藻一样，'赫氏圆石藻是一种包覆着独特碳酸钙盘状外壳的单细胞海洋浮游植物。虽然完整的钙板金藻个体很少见，但它们大量存在于海底沉积物中。至于“赫氏圆石藻”，不只是外壳，也是可能是被记录在沉积物里的柔软有机体。它能合成出一组具有很强的防腐能力的化学物质，这些化学物质，比如颗石藻标志物，可以在海底沉积物中那些早已腐烂的有机体中找到。颗石藻标志物成为地球科学中用来研究海洋表面温度的线索。 在被托马斯·亨利·赫胥黎和Cesare Emiliani命名后，赫氏圆石藻成为分布最广泛的钙板金藻，这种藻为无色透明，但它们的方解石外壳能在水柱中非常有效地折射光。从卫星照片可以看出该水华可以覆盖大面积海域(可能大于100,000平方公里)。据测定，赫氏圆石藻是迄今为止在这些条件下的優勢浮游植物。 该物种成为詹姆斯·洛夫洛克的盖亚假说的启示。 Amouroux, D.; P. S. Liss, E. Tessier, M. Hamren-Larsson, O. F. X. Donard. Role of oceans as biogenic sources of selenium. Earth and Planetary Science Letters. 2001, 189 (3-4): 277–283. Bibcode:2001E&PSL.189..277A. doi:10.1016/S0012-821X(01)00370-3.  引文使用过时参数coauthors (帮助) Andreae, Meinrat O.; Paul J. Crutzen. Atmospheric aerosols: biogeochemical sources and role in atmospheric chemistry. Science. 1997-05-16, 276 (5315): 1052–1058 [2008-03-21]. doi:10.1126/science.276.5315.1052. （原始内容存档于2009-11-19）.  引文使用过时参数coauthors (帮助) Araie, H.; T. Obata, Y. Shiraiwa. Metabolism of selenium in a coccolithophorid, Emiliania Huxleyi. J Plant Res. 2003, 116: 119.  引文使用过时参数coauthors (帮助) Boisson, F.; CS Karez, M. Henry, M. Romeo, M. Gnassia-Barelli. Ultrastructural observations on the marine coccolithophorid Cricosphaera elongata cultured in the presence of selenium or cadmium. Bulletin de l'Institut océanographique(Monaco). 1996: 239–247.  引文使用过时参数coauthors (帮助) Dacey, John W. H.; Stuart Wakeham. Oceanic dimethylsulfide: production during zooplankton grazing on phytoplankton. Science. 1986-09-19, 233 (4770): 1314–1316 [2008-03-21]. PMID 17843360. doi:10.1126/science.233.4770.1314. （原始内容存档于2020-05-28）.  引文使用过时参数coauthors (帮助) Dambara, A.; Y. Shiraiwa. Requirement of selenium for the growth and selection of adequate culture media in a marine coccolithophorid, Emiliania huxleyi.. Bulletin of the Society of Sea Water Science, Japan. 1999, 53 (6): 476–484.  引文使用过时参数coauthors (帮助) Danbara, A.; Y. Shiraiwa. The requirement of selenium for the growth of marine coccolithophorids, Emiliania huxleyi, Gephyrocapsa oceanica and Helladosphaera sp. (Prymnesiophyceae). Plant and Cell Physiology. 2007, 40 (7): 762–766.  引文使用过时参数coauthors (帮助) DeBose, Jennifer L.; Sean C. Lema, Gabrielle A. Nevitt. Dimethylsulfoniopropionate as a foraging cue for reef fishes. Science. 2008-03-07, 319 (5868): 1356 [2008-03-21]. PMID 18323445. doi:10.1126/science.1151109. （原始内容存档于2008-12-02）.  引文使用过时参数coauthors (帮助) Doblin, M. A.; S. I. Blackburn, G. M. Hallegraeff. Growth and biomass stimulation of the toxic dinoflagellate Gymnodinium catenatum (Graham) by dissolved organic substances. Journal of Experimental Marine Biology and Ecology. 1999, 236 (1): 33–47. doi:10.1016/S0022-0981(98)00193-2.  引文使用过时参数coauthors (帮助) Fabry, V. J. Calcium carbonate production by coccolithophorid algae in long-term carbon dioxide sequestration. California State University San Marcos (US). 2003.  Howard, Erinn C.; James R. Henriksen, Alison Buchan, Chris R. Reisch, Helmut Burgmann, Rory Welsh, Wenying Ye, Jose M. Gonzalez, Kimberly Mace, Samantha B. Joye, Ronald P. Kiene, William B. Whitman, Mary Ann Moran. Bacterial taxa that limit sulfur flux from the ocean. Science. 2006-10-27, 314 (5799): 649–652 [2008-03-21]. PMID 17068264. doi:10.1126/science.1130657. （原始内容存档于2010-06-09）.  引文使用过时参数coauthors (帮助) Norici, A.; R. Hell, M. Giordano. Sulfur and primary production in aquatic environments: an ecological perspective. Photosynthesis Research. 2005, 86 (3): 409–417. PMID 16307310. doi:10.1007/s11120-005-3250-0.  引文使用过时参数coauthors (帮助) Obata, T.; Y. Shiraiwa. A novel eukaryotic selenoprotein in the haptophyte alga Emiliania huxleyi. Journal of Biological Chemistry. 2005, 280 (18): 18462–8. PMID 15743763. doi:10.1074/jbc.M501517200.  引文使用过时参数coauthors (帮助) Obata, T.; H. Araie, Y. Shiraiwa. Kinetic studies on bioconcentration mechanism of selenium by a coccolithophorid, Emiliania huxleyi. Plant Cell Physiology. 2003, 44: S43.  引文使用过时参数coauthors (帮助) Obata, T.; H. Araie, Y. Shiraiwa. Bioconcentration mechanism of selenium by a coccolithophorid, Emiliania huxleyi. Plant Cell Physiology. 2004, 45 (10): 1434–1441 [2008-03-21]. PMID 15564527. doi:10.1093/pcp/pch164. （原始内容存档于2007-04-27）.  引文使用过时参数coauthors (帮助) Shiraiwa, Y. Physiological regulation of carbon fixation in the photosynthesis and calcification of coccolithophorids. Comparative Biochemistry and Physiology, Part B. 2003, 136 (4): 775–783. doi:10.1016/S1096-4959(03)00221-5.  Sorrosa, J. M.; M. Satoh, Y. Shiraiwa. Low temperature stimulates cell enlargement and intracellular calcification of coccolithophorids. Marine Biotechnology. 2005, 7 (2): 128–133. PMID 15782289. doi:10.1007/s10126-004-0478-1.  引文使用过时参数coauthors (帮助) Todd, Jonathan D.; Rachel Rogers, You Guo Li, Margaret Wexler, Philip L. Bond, Lei Sun, Andrew R. J. Curson, Gill Malin, Michael Steinke, Andrew W. B. Johnston. Structural and regulatory genes required to make the gas dimethyl sulfide in bacteria. Science. 2007-02-02, 315 (5812): 666–669 [2008-03-21]. PMID 17272727. doi:10.1126/science.1135370. （原始内容存档于2008-07-25）.  引文使用过时参数coauthors (帮助) Vallina, Sergio M.; Rafel Simo. Strong relationship between DMS and the solar radiation dose over the global surface ocean. Science. 2007-01-26, 315 (5811): 506–508 [2008-03-21]. PMID 17255509. doi:10.1126/science.1133680. （原始内容存档于2009-12-12）.  引文使用过时参数coauthors (帮助) Vila-Costa, Maria; Rafel Simo, Hyakubun Harada, Josep M. Gasol, Doris Slezak, Ronald P. Kiene. Dimethylsulfoniopropionate uptake by marine phytoplankton. Science. 2006-10-27, 314 (5799): 652–654 [2008-03-21]. PMID 17068265. doi:10.1126/science.1131043. （原始内容存档于2009-12-11）.  引文使用过时参数coauthors (帮助) Volkman, J. K.; S. M. Barrerr, S. I. Blackburn, E. L. Sikes. Alkenones in gephyrocapsa oceanica: implications for studies of paleoclimate. Geochimica et Cosmochimica Acta. 1995, 59 (3): 513–520. doi:10.1016/0016-7037(95)00325-T.  引文使用过时参数coauthors (帮助) Cocco Express - Coccolithophorids Expressed Sequence Tags (EST) & Microarray Database Emiliania huxleyi Home Page （页面存档备份，存于互联网档案馆）