A Desaturase Gene Involved in the Formation of 1,14-Nonadecadiene in Synechococcus sp. Strain PCC 7002 | Zendy

Daniel MendezPerez | Zendy; Nicolaus A. Herman | Zendy; Brian F. Pfleger | Zendy

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A Desaturase Gene Involved in the Formation of 1,14-Nonadecadiene in Synechococcus sp. Strain PCC 7002

Author(s) -

Daniel MendezPerez,

Nicolaus A. Herman,

Brian F. Pfleger

Publication year - 2014

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.01615-14

Subject(s) - strain (injury) , gene , double bond , synechococcus , biology , biosynthesis , biochemistry , genetics , chemistry , cyanobacteria , bacteria , anatomy , polymer chemistry

The marine cyanobacteriumSynechococcus sp. strain PCC 7002 synthesizes two alkenes, 1-nonadecene and 1,14-nonadecadiene. Whereas the genetic basis for the biosynthesis of the terminal double bond in both alkenes has been characterized, the origin of the internal double bond in 1,14-nonadecadiene has not. In this study, we demonstrate that a gene encoding an uncharacterized desaturase is involved in the formation of the internal double bond of 1,14-nonadecadiene. Further, at low temperatures, the desaturase gene is essential for growth, and in wild-type cells the levels of 1,14-nonadecadiene increase relative to that of cells grown at 38°C. These data suggest that 1,14-nonadecadiene plays a role in responding to cold stress.

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