Effects of cobalt on spore germination, gametophyte growth and development, and juvenile sporophyte growth of Saccharina japonica (Phaeophyceae)

doi:10.1007/s10811-019-01955-x

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	Effects of cobalt on spore germination, gametophyte growth and development, and juvenile sporophyte growth of Saccharina japonica (Phaeophyceae)
	Wang, Xuemei 1,2,3,4; Shan, Tifeng 2,3,4; Pang, Shaojun 2,3,4
刊名	JOURNAL OF APPLIED PHYCOLOGY
	2019-11-05
页码	8
关键词	Radionuclide pollution Kelp Life cycle Relative growth rate Chlorophyll fluorescence
ISSN号	0921-8971
DOI	10.1007/s10811-019-01955-x
通讯作者	Shan, Tifeng(shantifeng@qdio.ac.cn) ; Pang, Shaojun(sjpang@qdio.ac.cn)
英文摘要	Cobalt (Co), an essential element that is toxic in excess amounts, is a major component of wastewater that has accidentally been released from nuclear power plants. However, the effects of Co in seawater on the life cycle of macroalgae have seldom been investigated. Here, we tested the effects of different Co concentrations (1, 10, 50, 100, 200, 500, and 1000 mu g L-1) on spore germination, gametophyte growth and development, and juvenile sporophyte growth of the brown alga Saccharina japonica. Sterilized natural seawater with a known Co concentration was used as the control. The spore germination percentage in the 1000 mu g L-1 group was significantly reduced after 1 and 2 days of exposure. The gametophyte growth in the 1 mu g L-1 group was significantly accelerated, while that of the >= 50 mu g L-1 groups was significantly inhibited after 9 days of exposure. The relative growth rate and maximum quantum yield (F-v/F-m) of photosystem II of the juvenile sporophytes in the 1 mu g L-1 group were significantly higher, while those of the >= 10 mu g L-1 groups were significantly lower after 2 weeks of exposure. By culturing the sporophytes in the control medium, F-v/F-m values recovered from Co stress within 4 days. These results highlight the potentially severe impact of accidentally released Co from nuclear power plants on the life cycle of S. japonica. Further studies should focus on the toxic mechanism of Co in S. japonica and the phytoremediation potential of seaweeds to alleviate Co pollution.
资助项目	State's Key Project of Research and Development Plan[2016YFC1402507] ; National Key Technology Support Program[2015BAD13B05] ; China Agriculture Research System[CARS-50] ; Taishan Scholar Program of Shandong Province ; Foundation for Huiquan Scholar of Institute of Oceanology, Chinese Academy of Sciences
WOS研究方向	Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000494403000002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/164799]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Shan, Tifeng; Pang, Shaojun
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xuemei,Shan, Tifeng,Pang, Shaojun. Effects of cobalt on spore germination, gametophyte growth and development, and juvenile sporophyte growth of Saccharina japonica (Phaeophyceae)[J]. JOURNAL OF APPLIED PHYCOLOGY,2019:8.
APA	Wang, Xuemei,Shan, Tifeng,&Pang, Shaojun.(2019).Effects of cobalt on spore germination, gametophyte growth and development, and juvenile sporophyte growth of Saccharina japonica (Phaeophyceae).JOURNAL OF APPLIED PHYCOLOGY,8.
MLA	Wang, Xuemei,et al."Effects of cobalt on spore germination, gametophyte growth and development, and juvenile sporophyte growth of Saccharina japonica (Phaeophyceae)".JOURNAL OF APPLIED PHYCOLOGY (2019):8.