Identification of the algal dimethyl sulfide–releasing enzyme: A missing link in the marine sulfur cycle

Author:

Alcolombri Uria12,Ben-Dor Shifra3,Feldmesser Ester4,Levin Yishai4,Tawfik Dan S.1,Vardi Assaf2

Affiliation:

1. Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.

2. Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.

3. Bioinformatics and Biological Computing Unit, Biological Services, Weizmann Institute of Science, Rehovot 76100, Israel.

4. Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of Science, Rehovot 76100, Israel.

Abstract

Sourcing the smell of the seaside Marine phytoplankton plays a critical role in the global sulfur cycle. Algae, for instance, are the main source of the aromatic compound dimethylsulfide (DMS) released from the oceans into the atmosphere. Alcolombri et al. identified the lyase enzyme responsible for DMS production in the bloom-forming marine phytoplankton Emiliania huxleyi (see the Perspective by Johnston). The presence of this gene in other globally distributed phytoplankton and corals suggests that it may serve as a reliable indicator of DMS production across diverse phyla. Because DMS gets oxidized to sulfur aerosols, which act as cloud condensation nuclei, this enzyme is a key global biogeochemical catalyst. Science , this issue p. 1466 ; see also p. 1430

Funder

European Research Council

Sasson and Marjorie Peress Philanthropic Fund

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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