Regulation of Photosynthesis in Bloom-Forming Cyanobacteria with the Simplest ß-Diketone.
Environ Sci Technol
; 55(20): 14173-14184, 2021 10 19.
Article
in En
| MEDLINE
| ID: mdl-34590827
ABSTRACT
Selective inhibition of photosynthesis is a fundamental strategy to solve the global challenge caused by harmful cyanobacterial blooms. However, there is a lack of specificity of the currently used cyanocides, because most of them act on cyanobacteria by generating nontargeted oxidative stress. Here, for the first time, we find that the simplest ß-diketone, acetylacetone, is a promising specific cyanocide, which acts on Microcystis aeruginosa through targeted binding on bound iron species in the photosynthetic electron transport chain, rather than by oxidizing the components of the photosynthetic apparatus. The targeted binding approach outperforms the general oxidation mechanism in terms of specificity and eco-safety. Given the essential role of photosynthesis in both natural and artificial systems, this finding not only provides a unique solution for the selective control of cyanobacteria but also sheds new light on the ways to modulate photosynthesis.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cyanobacteria
/
Microcystis
Language:
En
Journal:
Environ Sci Technol
Year:
2021
Type:
Article