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Growth responses of Ulva prolifera to inorganic and organic nutrients: Implications for macroalgal blooms in the southern Yellow Sea, China.
Li, Hongmei; Zhang, Yongyu; Han, Xiurong; Shi, Xiaoyong; Rivkin, Richard B; Legendre, Louis.
Afiliação
  • Li H; Research Center for Marine Biology and Carbon Sequestration, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
  • Zhang Y; Research Center for Marine Biology and Carbon Sequestration, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
  • Han X; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China.
  • Shi X; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China.
  • Rivkin RB; National Marine Hazard Mitigation Service, Beijing, 100194, China.
  • Legendre L; Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
Sci Rep ; 6: 26498, 2016 05 20.
Article em En | MEDLINE | ID: mdl-27199215
The marine macrophyte Ulva prolifera is the dominant green-tide-forming seaweed in the southern Yellow Sea, China. Here we assessed, in the laboratory, the growth rate and nutrient uptake responses of U. prolifera to different nutrient treatments. The growth rates were enhanced in incubations with added organic and inorganic nitrogen [i.e. nitrate (NO3(-)), ammonium (NH4(+)), urea and glycine] and phosphorus [i.e. phosphate (PO4(3-)), adenosine triphosphate (ATP) and glucose 6-phosphate (G-6-P)], relative to the control. The relative growth rates of U. prolifera were higher when enriched with dissolved organic nitrogen (urea and glycine) and phosphorus (ATP and G-6-P) than inorganic nitrogen (NO3(-) and NH4(+)) and phosphorus (PO4(3-)). In contrast, the affinity was higher for inorganic than organic nutrients. Field data in the southern Yellow Sea showed significant inverse correlations between macroalgal biomass and dissolved organic nutrients. Our laboratory and field results indicated that organic nutrients such as urea, glycine and ATP, may contribute to the development of macroalgal blooms in the southern Yellow Sea.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Fosfatos / Ulva / Nitratos / Fenômenos Fisiológicos da Nutrição País como assunto: Asia Idioma: En Ano de publicação: 2016 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Fosfatos / Ulva / Nitratos / Fenômenos Fisiológicos da Nutrição País como assunto: Asia Idioma: En Ano de publicação: 2016 Tipo de documento: Article