Phosphomonoesterase and phosphodiesterase activities in the eastern Mediterranean in two contrasting seasonal situations

Van Wambeke, France; Conan, Pascal; Pujo-Pay, Mireille; Taillandier, Vincent; Crispi, Olivier; Pavlidou, Alexandra; Nunige, Sandra; Didry, Morgane; Salmeron, Christophe; Pulido-Villena, Elvira

doi:https://doi.org/10.5194/bg-21-2621-2024

Articles | Volume 21, issue 10

https://doi.org/10.5194/bg-21-2621-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-21-2621-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 10

Research article

|

29 May 2024

Research article |

| 29 May 2024

Phosphomonoesterase and phosphodiesterase activities in the eastern Mediterranean in two contrasting seasonal situations

France Van Wambeke, Pascal Conan, Mireille Pujo-Pay, Vincent Taillandier, Olivier Crispi, Alexandra Pavlidou, Sandra Nunige, Morgane Didry, Christophe Salmeron, and Elvira Pulido-Villena

Supplement

https://doi.org/10.5194/bg-21-2621-2024-supplement

Data sets

PERLE2 cruise, RV Pourquoi pas? Durrieu de Madron Xavier and Conan Pascal https://doi.org/10.17600/18000865

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Short summary

Phosphomonoesterase (PME) and phosphodiesterase (PDE) activities over the epipelagic zone are described in the eastern Mediterranean Sea in winter and autumn. The types of concentration kinetics obtained for PDE (saturation at 50 µM, high Km, high turnover times) compared to those of PME (saturation at 1 µM, low Km, low turnover times) are discussed in regard to the possible inequal distribution of PDE and PME in the size continuum of organic material and accessibility to phosphodiesters.