Usa Marine Biological Institute, Kochi University, 194 Inoshiri, Usa, Kochi, Tosa, 781-1164, Japan.
Graduate School of Kuroshio Science, Kochi University, 2-5-1 Akebono-cho, Kochi, 780-8520, Japan.
Sci Rep. 2020 Jul 28;10(1):12606. doi: 10.1038/s41598-020-69536-4.
Microalgae with high growth rates have been considered as promising organisms to replace fossil resources with contemporary primary production as a renewable source. However, their microscopic size makes it hard to be harvested for industrial applications. In this regard, multicellular macroalgae are more suitable for harvesting. Here, we show that Ulva meridionalis has the highest growth rate ever reported for a multicellular autotrophic plant. Contrasted to the known bloom-forming species U. prolifera growing at an approximately two-fold growth rate per day in optimum conditions, U. meridionalis grows at a daily rate of over fourfold. The high growth ability of this multicellular alga would provide the most effective method for CO fixation and biomass production.
具有高增长率的微藻被认为是有前途的生物，可以用现代初级生产力替代化石资源，作为可再生资源。然而，它们的微小尺寸使得它们很难被用于工业应用。在这方面，多细胞大型藻类更适合收获。在这里，我们表明，南方绿藻的生长速度是已知多细胞自养植物中最快的。与在最佳条件下每天以大约两倍的生长速度生长的已知形成水华的物种 U. prolifera 相比，南方绿藻的生长速度是其四倍以上。这种多细胞藻类的高生长能力将为 CO 固定和生物量生产提供最有效的方法。
