Back to Search Start Over

Picochlorum celeri as a model system for robust outdoor algal growth in seawater

Picochlorum celeri as a model system for robust outdoor algal growth in seawater

Authors :
Anagha Krishnan
Maria Likhogrud
Melissa Cano
Scott Edmundson
Jenna B. Melanson
Michael Huesemann
John McGowen
Joseph C. Weissman
Matthew C. Posewitz
Source :
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Publication Year :
2021
Publisher :
Nature Portfolio, 2021.

Abstract

Abstract With fast growth rates, broad halotolerance and the ability to thrive at high temperatures, algae in the genus Picochlorum are emerging as promising biomass producers. Recently, we isolated a remarkably productive strain, Picochlorum celeri, that attains > 40 g m−2 day−1 productivities using simulated outdoor light. To test outdoor productivities, Picochlorum celeri was cultivated in 820 L raceway ponds at the Arizona Center for Algae Technology and Innovation. Picochlorum celeri demonstrated the highest outdoor biomass productivities reported to date at this testbed averaging ~ 31 g m−2 day−1 over four months with a monthly (August) high of ~ 36 g m−2 day−1. Several single day productivities were > 40 g m−2 day−1. Importantly for sustainability, Picochlorum celeri achieved these productivities in saline water ranging from seawater to 50 parts per thousand sea salts, without any biocides or pond crashes, for over 143 days. Lastly, we report robust genetic engineering tools for future strain improvements.

Subjects

Subjects :
Medicine
Science

Details

Language :
English
ISSN :
20452322
Volume :
11
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Scientific Reports
Publication Type :
Academic Journal
Accession number :
edsdoj.29dfffa23cca41a6a95a3a20b0b6a63b
Document Type :
article
Full Text :
https://doi.org/10.1038/s41598-021-91106-5