Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Physiological and Comparative Proteomic Analyses Provide Insight Into the Differential Responses of Acanthus Ilicifolius and Its Relative, Acanthus Mollis, to Tidal Flooding Stress

Version 1 : Received: 5 December 2020 / Approved: 7 December 2020 / Online: 7 December 2020 (15:09:37 CET)

A peer-reviewed article of this Preprint also exists.

Liu, Y.-L.; Zheng, H.-L. Physiological and Proteomic Analyses of Two Acanthus Species to Tidal Flooding Stress. Int. J. Mol. Sci. 2021, 22, 1055. Liu, Y.-L.; Zheng, H.-L. Physiological and Proteomic Analyses of Two Acanthus Species to Tidal Flooding Stress. Int. J. Mol. Sci. 2021, 22, 1055.

Journal reference: Int. J. Mol. Sci. 2021, 22, 1055
DOI: 10.3390/ijms22031055

Abstract

The mangrove plant Acanthus ilicifolius and its relative, A. mollis, have been previously proved to possess diverse pharmacological effects. Therefore, evaluating the differentially expressed proteins of these species under tidal flooding stress is essential to fully exploit and benefit from their medicinal values. The roots of A. ilicifolius and A. mollis were exposed to 6 h of flooding stress per day for 10 days. The dry weight, hydrogen peroxide (H2O2) content, anatomical characteristics, carbon and energy levels, and two-dimensional electrophoresis coupled with MALDI-TOF/TOF MS technology were used to reveal the divergent flooding resistant strategies. A. ilicifolius performed better under tidal flooding stress, which was reflected in the integrity of the morphological structure, more efficient use of carbon and energy, and a higher percentage of up-regulated proteins associated with carbon and energy metabolism. A. mollis could not survive in flooding conditions for a long time, as revealed by incomplete cell structures of the roots, less efficient use of carbon and energy, and a higher percentage of down-regulated proteins associated with carbon and energy metabolism. Energy provision and flux balance played a role in the flooding tolerance of A. ilicifolius and A. mollis.

Subject Areas

Acanthus species; flooding stress; physiological; comparative proteomics analyses; carbon and energy metabolism

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