磷缺乏后补充对铜绿微囊藻生长及叶绿素荧光参数的影响

doi:10.19640/j.cnki.jtau.2021.04.008

Journal of Tianjin Agricultural University ›› 2021, Vol. 28 ›› Issue (4): 31-34.doi: 10.19640/j.cnki.jtau.2021.04.008

• Researches and Scientific Notes • Previous Articles Next Articles

Effects of phosphorus supplements on the growth and chlorophyll fluorescence parameters of phosphorus deficiency Microcystis aeruginosa

Zhang Dajuan, Zhang Shulin^{Corresponding Author}, Dai Wei, Bi Xiangdong, Xu Yingfang, Wei Lingling

Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, College of Fisheries, Tianjin Agricultural University, Tianjin 300392, China

Received:2020-04-14 Online:2021-12-31 Published:2022-01-05

Abstract

Abstract: Phosphorus, an important element in algal cells, plays a vital role in the growth of algal, and is also an important limiting factor of cyanobacteria bloom. Effects of Simulated phosphorus supplement after deficiency on the growth and chlorophyll fluorescence parameters under laboratory conditions were carried out in this study. The results showed that, the cell density of M. aeruginosa in the treatment group was 0.58×10⁷ cell/mL lower than that of control group significantly（P<0.05）after phosphorus deficiency 7 days. The Fv/Fm in the treatment group was also significantly lower than that of control group. After phosphorus supplement, M. aeruginosa grew fast, and the cell densities of both control and treatment groups were basically same by the end of the cultur, but the Fv/Fm, ΦPSⅡ and ETRmax of M. aeruginosa in the treatment group were significantly higher than that of the control group. The results of this study can be used as a reference for the prevention and control of M. aeruginosa bloom.

Key words: Microcystis aeruginosa, phosphorus deficiency, phosphorus supplement, chlorophyll fluorescence parameters

CLC Number:

S949

Zhang Dajuan, Zhang Shulin, Dai Wei, Bi Xiangdong, Xu Yingfang, Wei Lingling. Effects of phosphorus supplements on the growth and chlorophyll fluorescence parameters of phosphorus deficiency Microcystis aeruginosa[J]. Journal of Tianjin Agricultural University, 2021, 28(4): 31-34.

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Effects of phosphorus supplements on the growth and chlorophyll fluorescence parameters of phosphorus deficiency Microcystis aeruginosa

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