Zhen Chen, Zu-Wen Yuan, Wei-Xin Luo, Xun Wu, Jin-Long Pan, Yong-Qi Yin, Hai-Chen Shao, Kui Xu, Wei-Zhi Li, Yuan-Liang Hu, Zhe Wang, Kun-Shan Gao, Xiong-Wen Chen
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...
February 23, 2024: Applied and Environmental Microbiology