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Review
. 2022 Aug 8;14(4):843-856.
doi: 10.1007/s12551-022-00981-3. eCollection 2022 Aug.

The effects of secondary bacterial metabolites on photosynthesis in microalgae cells

O A Koksharova  1   2 , N A Safronov  1
Affiliations
Review

The effects of secondary bacterial metabolites on photosynthesis in microalgae cells

O A Koksharova et al. Biophys Rev. .

Abstract

Secondary metabolites of bacteria are regulatory molecules that act as "info-chemicals" that control some metabolic processes in the cells of microorganisms. These molecules provide the function of bacteria communication in microbial communities. As primary producers of organic matter in the biosphere, microalgae play a central ecological role in various ecosystems. Photosynthesis is a central process in microalgae cells, and it is exposed to various biotic and abiotic factors. Various secondary metabolites of bacteria confer a noticeable regulatory effect on photosynthesis in microalgae cells. The main purpose of this review is to highlight recent experimental results that demonstrate the impact of several types of common bacterial metabolites (volatile organic compounds, non-protein amino acids, and peptides) on photosynthetic activity in cells of microalgae. The use of these molecules as herbicides can be of great importance both for practical applications and for basic research.

Keywords: Allelopathic molecules; BMAA; Chlorophyll; Microcystins; Photosystems; Phytotoxicity; Secondary metabolites; VOCs.

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Conflict of interest statement

Competing interestsThe authors declare no competing interests.

Figures

Fig. 1
Fig. 1
The diagram shows photosynthetic protein complexes and the BMAA’s influence on the protein components of PS1, PS2, cytochrome b6/f complex, and ATP synthase that was observed in cyanobacterial cells grown in diazotrophic conditions. Red arrows indicate downregulated proteins under BMAA treatment. The diagram has been adapted with modifications from Koksharova et al. (2021). The diagram was performed by using the Inkscape graphics program
See this image and copyright information in PMC

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