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Nitrogen uptake and assimilation preferences of the main green tide alga Ulva prolifera in the Yellow Sea, China
Li, Hongmei1; Zhang, Yongyu1,2; Chen, Jing1; Zheng, Xuan1; Liu, Feng3; Jiao, Nianzhi2
2019-02-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
ISSN0921-8971
Volume31Issue:1Pages:625-635
Corresponding AuthorZhang, Yongyu(zhangyy@qibebt.ac.cn) ; Jiao, Nianzhi(Jiao@xmu.edu.cn)
AbstractThe successive outbreak of large-scale Ulva prolifera green tides in the Yellow Sea, China, from 2007 to 2017, is a serious regional environmental issue that attracts worldwide attention. The competitive advantage in nitrogen uptake and utilization is an important factor, making U. prolifera the dominant green-tide-forming seaweed. However, the detailed preference characteristics of U. prolifera for nitrogen uptake and assimilation in common inorganic and organic nitrogen sources is poorly understood and is studied using stable nitrogen isotope (N-15) analysis. Our results reveal that various nitrogen sources can be simultaneously and directly taken up by U. prolifera. The uptake rates are in the sequence of NO3- (nitrate)>NH4+ (ammonium)>CO(NH2)(2) (urea)>C2H5NO2 (glycine) and C3H7NO2 (alanine). In other words, U. prolifera mostly prefers inorganic nitrogen, such as nitrate and ammonium, although it can also utilize different organic nitrogen sources simultaneously. Moreover, the assimilation of NH4+ is inhibited and its uptake cannot be fitted by the Michaelis-Menten equation when the alga is exposed to multiple nitrogen sources. We propose that at the early and middle stages of green tides the rich inorganic nitrogen sources (especially NO3-) in seawater are very important to support the fast growth of U. prolifera, while at the later stage of green tides, when inorganic nitrogen sources have been exhausted, organic nitrogen sources may contribute importantly to maintaining the growth of U. prolifera, thus lengthening the duration of green tides.
KeywordHarmful macroalgal blooms Nitrogen species Nutrient uptake Stable isotopes Chlorophyta Ulva prolifera
DOI10.1007/s10811-018-1575-2
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC1402101-03] ; Key Laboratory of Marine Ecology and Environmental Science and Engineering SOA[MESE-2016-02] ; National Natural Science Foundation of China[41606092] ; National Key Research and Development Programs of China[2016YFA0601402] ; Key R&D Project of the Shandong Province[2016GSF115011] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-DQC023]
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS IDWOS:000458698200055
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155497
Collection实验海洋生物学重点实验室
Corresponding AuthorZhang, Yongyu; Jiao, Nianzhi
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Shandong Prov Key Lab Energy Genet, Qingdao 266101, Peoples R China
2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361100, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Li, Hongmei,Zhang, Yongyu,Chen, Jing,et al. Nitrogen uptake and assimilation preferences of the main green tide alga Ulva prolifera in the Yellow Sea, China[J]. JOURNAL OF APPLIED PHYCOLOGY,2019,31(1):625-635.
APA Li, Hongmei,Zhang, Yongyu,Chen, Jing,Zheng, Xuan,Liu, Feng,&Jiao, Nianzhi.(2019).Nitrogen uptake and assimilation preferences of the main green tide alga Ulva prolifera in the Yellow Sea, China.JOURNAL OF APPLIED PHYCOLOGY,31(1),625-635.
MLA Li, Hongmei,et al."Nitrogen uptake and assimilation preferences of the main green tide alga Ulva prolifera in the Yellow Sea, China".JOURNAL OF APPLIED PHYCOLOGY 31.1(2019):625-635.
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