School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
Arch Microbiol. 2021 Mar;203(2):733-740. doi: 10.1007/s00203-020-02074-9. Epub 2020 Oct 12.
Iron and phosphorus (P) are the important micro- and macro-nutrient for microalgae growth, respectively. However, the effect of iron and P on microalgae growth in co-culture associating with the formation of dominate algae has not been investigated before. In the current study, Anabaene flos-aquae, Chlorella vulgaris and Melosira sp. were co-cultivated under the addition of different initial iron and P to reveal the effect of iron and phosphorus on the growth of microalgae. The results showed that the mean growth rate of A. flos-aquae, C. vulgaris and Melosira was 0.270, 0.261 and 0.062, respectively, indicating that the A. flos-aquae and C. vulgaris algae are liable to be the dominant algae while the growth of Melosira was restrained when co-cultured. The ratio of Fe to P has a significant impact on the growth of microalgae and could be regarded as an indicator of algae growth. Microalgae showed a much more obvious uptake of iron compared to that of P. The information obtained in the current study was useful for the forecast of water quality and the control of microalgae bloom.
铁和磷（P）分别是微藻生长的重要微量和常量营养素。然而，以前尚未研究过铁和 P 对与优势藻形成相关的共培养微藻生长的影响。在本研究中，将满江红、普通小球藻和眉藻在添加不同初始铁和 P 的条件下进行共培养，以揭示铁和磷对微藻生长的影响。结果表明，满江红、普通小球藻和眉藻的平均生长率分别为 0.270、0.261 和 0.062，表明满江红和普通小球藻藻类容易成为优势藻，而眉藻的生长受到抑制。铁与磷的比例对微藻的生长有显著影响，可作为藻类生长的指标。与 P 相比，微藻对铁的吸收更为明显。本研究获得的信息有助于水质预测和微藻水华的控制。
