High-intensity pulsed-light cultivation of unicellular algae: Photosynthesis continues in the dark.

ABSTRACT: Experiments have shown that photon exploitation efficiency in unicellular algal biomass production under a pulsed-light regime with a high-photon flux is higher than the efficiency under continuous illumination with the same flux. This observation has been explained theoretically to be a consequence of the improved efficiency of exploitation of photons by Photosystem II (PS II) thanks to the combined effect of photon-absorption statistics, a rate-limiting time scale and the size of the PQ pool. Exploiting the same ideas, it is shown in this paper that, under a pulsed-light regime, there is a pulse-time length, for which the average exploitation efficiency of PS II absorbed photons is maximal. Under ideal conditions, this maximum is close to 100%. The optimal pulse-time length is roughly pr

SUBMITTER: Zarmi Y 

PROVIDER: S-EPMC10943342 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature