Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg 40530, Sweden.
Department of Chemistry and Materials, RISE Research Institutes of Sweden, Borås 50115, Sweden.
Physiol Plant. 2019 May;166(1):438-450. doi: 10.1111/ppl.12951. Epub 2019 Mar 25.
Climate change, energy use and food security are the main challenges that our society is facing nowadays. Biofuels and feedstock from microalgae can be part of the solution if high and continuous production is to be ensured. This could be attained in year-round, low cost, outdoor cultivation systems using strains that are not only champion producers of desired compounds but also have robust growth in a dynamic climate. Using microalgae strains adapted to the local conditions may be advantageous particularly in Nordic countries. Here, we review the current status of laboratory and outdoor-scale cultivation in Nordic conditions of local strains for biofuel, high-value compounds and water remediation. Strains suitable for biotechnological purposes were identified from the large and diverse pool represented by saline (NE Atlantic Ocean), brackish (Baltic Sea) and fresh water (lakes and rivers) sources. Energy-efficient annual rotation for cultivation of strains well adapted to Nordic climate has the potential to provide high biomass yields for biotechnological purposes.
气候变化、能源利用和粮食安全是当今社会面临的主要挑战。如果要确保高产量和持续生产，生物燃料和微藻原料可以成为解决方案的一部分。这可以通过在全年、低成本、户外培养系统中使用不仅是理想化合物的冠军生产者，而且在动态气候下具有稳健生长的菌株来实现。在北欧国家，使用适应当地条件的微藻菌株可能是有利的。在这里，我们回顾了在北欧条件下，针对生物燃料、高价值化合物和水修复的本地菌株的实验室和户外规模培养的现状。从代表咸水（北大西洋）、半咸水（波罗的海）和淡水（湖泊和河流）来源的大量和多样化的微藻中，筛选出适合生物技术目的的菌株。对于适应北欧气候的菌株，采用节能的年度轮作方式进行培养，有可能为生物技术目的提供高生物量产量。
