文献类型：期刊文献

英文题名：Differences between Motile and Nonmotile Cells of Haematococcus pluvialis in the Production of Astaxanthin at Different Light Intensities

作者：Li, Feng[1,2,3,4];Cai, Minggang[1,2,3,4,5];Lin, Mingwei[4];Huang, Xianghu[6];Wang, Jun[5];Ke, Hongwei[4];Zheng, Xuehong[3,4];Chen, Ding[3,4];Wang, Chunhui[3,4];Wu, Shaoting[4];An, Yu[4]

机构：[1]Xiamen Univ, Fujian Prov Key Lab Coastal Ecol & Environm Studi, Xiamen 361101, Peoples R China;[2]Xiamen Univ, Coastal & Ocean Management Inst, Xiamen 361101, Peoples R China;[3]Key Lab Marine Chem & Appl Technol, Xiamen 361101, Peoples R China;[4]Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361101, Peoples R China;[5]Xiamen Ocean Vocat Coll, Xiamen 361101, Peoples R China;[6]Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524088, Peoples R China

年份：2019

卷号：17

期号：1

外文期刊名：MARINE DRUGS

收录：SCI-EXPANDED(收录号：WOS:000458053200039)、、WOS

基金：This research was mainly supported by Xiamen Southern Ocean Technology Center of China (grant number 14CZP035HJ09) and partly funded by Xiamen Scientific and Technologic Projects (grant number 3052Z20031086 and 3052Z20123004), Marine Science Base Scientific Research Training and Scientific Research Ability Enhancement Project of Xiamen University (grant number J1210050), Xiamen University Training Program of Innovation and Entrepreneurship for Undergraduates (grant number 2016X0619), and the Special Funds for Scientific Research of Marine Public Welfare Industry (grand number 201305016).

语种：英文

外文关键词：Haematococcus pluvialis; astaxanthin; light intensity; photooxidative stress

外文摘要：Haematococcus pluvialis, as the best natural resource of astaxanthin, is widely used in nutraceuticals, aquaculture, and cosmetic industries. The purpose of this work was to compare the differences in astaxanthin accumulation between motile and nonmotile cells of H. pluvialis and to determine the relationship between the two cells and astaxanthin production. The experiment design was achieved by two different types of H. pluvialis cell and three different light intensities for an eight day induction period. The astaxanthin concentrations in nonmotile cell cultures were significantly increased compared to motile cell cultures. The increase of astaxanthin was closely associated with the enlargement of cell size, and the nonmotile cells were more conducive to the formation of large astaxanthin-rich cysts than motile cells. The cyst enlargement and astaxanthin accumulation of H. pluvialis were both affected by light intensity, and a general trend was that the higher the light intensity, the larger the cysts formed, and the larger the quantity of astaxanthin accumulated. In addition, the relatively low cell mortality rate in the nonmotile cell cultures indicated that the nonmotile cells have a stronger tolerance to photooxidative stress. We suggest that applying nonmotile cells as the major cell type of H. pluvialis to the induction period may help to enhance the content of astaxanthin and the stability of astaxanthin production.