UV-A radiation increases biomass yield by enhancing energy flow and carbon assimilation in the edible cyanobacterium Nostoc sphaeroides.

ABSTRACT: Ultraviolet (UV) A radiation (315-400 nm) is the predominant component of solar UV radiation that reaches the Earth's surface. However, the underlying mechanisms of the positive effects of UV-A on photosynthetic organisms have not yet been elucidated. In this study, we investigated the effects of UV-A radiation on the growth, photosynthetic ability, and metabolome of the edible cyanobacterium Nostoc sphaeroides. Exposures to 5-15 W m^-2 (15-46 µmol photons m^-2 s^-1) UV-A and 4.35 W m^-2 (20 μmol photons m^-2 s^-1) visible light for 16 days significantly increased the growth rate and biomass production of N. sphaeroides cells by 18%-30% and 15%-56%, respectively, compared to the non-UV-A-acclimated cells. Additionall

SUBMITTER: Chen Z 

PROVIDER: S-EPMC10952460 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature