1. Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Hangzhou 310012, China;
2. Key laboratory of Marine Ecosystem and Biogeochemistry of SOA, Second Institute of Oceanography, Hangzhou 310012, China
Abstract：The article is to explore the effects of inorganic nitrogen with various concentrations to the growth and cyst of Scrippsiella trochoidea.The study indicates NO3-N is favorable to cell growth,while NH4-N is preferable to absorb the vegetative cells.The antioxidant enzyme activities decreased along with rising concentration of nitrogen.But the different nitrogen source had different effects when the concentration and growth period were different.For example,compared with NO3-N,90 μM NH4-N could promote the antioxidant enzyme activities in the phases of exponential growth,and 10 μM NH4-N could promote the antioxidant enzyme activities in the phases of plateau.For other periods,these two nitrogen sources have less influence,which could be attributed to the prior absorption of NH4-N.
WANG Zhi-fu,FENG Wei-hua,XU Heng-tao et al. Effects of different nitrogen source on antioxidant enzymes activities of Scrippsilla trochodiea[J]. Marine Environmental Science, 2018, 37(2): 221-227.
BINDER B J,ANDERSON D M.Physiological and environmental control of germination in Scrippsiella trochoidea (Dinophyceae) resting cysts[J].Journal of Phycology,1987,23(2):99-107.
QI Y Z,CHEN J F,WANG Z H,et al.Some observations on harmful algal bloom (HAB) events along the coast of Guangdong,southern China in 1998[J].Hydrobiologia,2004,512(1/2/3):209-214.
[7]
WANG Z F,YU Z M,SONG X X,et al.Effects of ammonium and nitrate on encystment and growth of Scrippsiella trochoidea[J].Chinese Science Bulletin,2014,59(33):4491-4497.
L'HELGUEN S,MADEC C,LE CORRE P.Nitrogen uptake in permanently well-mixed temperate coastal waters[J].Estuarine,Coastal and Shelf Science,1996,42(6):803-818.
[13]
LOURENÇO S O,BARBARINO E,MANCINI-FILHO J,et al.Effects of different nitrogen sources on the growth and biochemical profile of 10 marine microalgae in batch culture:an evaluation for aquaculture[J].Phycologia,2002,41(2):158-168.
IWASAKI H,SASADA K.Studies on the red tide dinoflagellates-Ⅱ:on Heterosigma inlandica appeared in Gokasho Bay,Shima Peninsula[J].Bulletin of the Japanese Society of Scientific Fisheries,1969,35(10):943-947.
WANG C,ZHANG S H,WANG P F,et al.Metabolic adaptations to ammonia-induced oxidative stress in leaves of the submerged macrophyte Vallisneria natans (Lour.) Hara[J].Aquatic Toxicology,2008,87(2):88-98.
[19]
PFLUGMACHER S.Promotion of oxidative stress in the aquatic macrophyte Ceratophyllum demersum during biotransformation of the cyanobacterial toxin microcystin-LR[J].Aquatic Toxicology,2004,70(3):169-178.
