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N-acyl homoserine lactone mediating initial adhesion of microalgal biofilm formation. | LitMetric

N-acyl homoserine lactone mediating initial adhesion of microalgal biofilm formation.

Environ Res

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, 1 Xikang Road, Nanjing, 210098, PR China; College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, PR China. Electronic address:

Published: September 2023

AI Article Synopsis

Article Abstract

While pioneering methods have demonstrated that bacterial N-acyl homoserine lactone (AHL) signaling molecules can influence the growth and self-aggregation of suspended microalgae, whether AHLs can affect the initial adhesion to a carrier has remained an open question. Here we revealed that the microalgae exhibited different adhesion potential under AHL mediation, where the performance was affiliated to both AHL types and concentrations. The result can be well explained by the interaction energy theory, where the energy barrier between the carriers and the cells varied due to AHL mediation. Depth analyses revealed that AHL acted through modifying the properties of the surface electron donor of the cells, which were dependent upon three major components, i.e., extracellular protein (PN) secretion, the PN secondary structure, and the PN amino acid composition. These findings expand the known diversity of AHLs mediation on microalgal initial adhesion and metabolisms, which may interface with other major cycles and become helpful to theoretically guide the application of AHLs in microalgal culture and harvesting.

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Source
http://dx.doi.org/10.1016/j.envres.2023.116446DOI Listing

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