A research team led by LIU Jianguo from the Institute of Oceanology of the Chinese Academy of Sciences found that light-independent metabolic pathways, in addition to light-dependent metabolic pathways, can also regulate astaxanthin accumulation in Haematococcus. 

The study will help to improve astaxanthin yields in photobioreactors.

A model diagram of the regulation of astaxanthin synthesis by light-independent respiratory pathway (Image by IOCAS) 

CAS news release, December 23, 2021