Temperature-induced response in algal cell surface properties and behaviour: an experimental approach

• DOI: 10.1007/s10811-021-02591-0
• Publication Date: 2021-10-22T23:14:33Z
• Authors: N. Novosel; T. Mišić Radić; J. Zemla; M. Lekka; A. Čačković; D. Kasum; T. Legović; P. Žutinić; M. Gligora Udovič; N. Ivošević DeNardis
• Keywords: 0303 health sciences; 03 medical and health sciences; 13. Climate action; Algae ; Adhesion ; Hydrophobicity ; Morphology ; Motility ; Stifness; 14. Life underwater

Abstract Microalgae are considered an accurate indicator of ecosystem perturbations induced by global climate change. The present work aims to investigate the alteration temperature on surface properties and behaviour three algal species using complementary methods (electrochemical atomic force microscopy). results showed that temperature-induced response algae is species-specific due structural features cell envelope. Wall-less experience largest nanomechanical chemical change, while with silicified walls show pronounced change in degree hydrophobicity. Alterations suggest a molecular modification barrier cytoskeletal rearrangements size, morphology reveals no physiological activity cells different organisation released extracellular substances form fine fibrillar structures, aggregated particles, dense networks. Both types responses, activity, determine adhesion motility. This study highlights role cell-substrate cell–cell interactions, which important for understanding at natural interfaces mechanism biofilm aggregate formation aquatic systems under stress. Graphical abstract