6S-Like scr3559 RNA Affects Development and Antibiotic Production in Streptomyces coelicolor

Author:

Bobek Jan,Mikulová Adéla,Šetinová Dita,Elliot Marie,Čihák MatoušORCID

Abstract

Regulatory RNAs control a number of physiological processes in bacterial cells. Here we report on a 6S-like RNA transcript (scr3559) that affects both development and antibiotic production in Streptomyces coelicolor. Its expression is enhanced during the transition to stationary phase. Strains that over-expressed the scr3559 gene region exhibited a shortened exponential growth phase in comparison with a control strain; accelerated aerial mycelium formation and spore maturation; alongside an elevated production of actinorhodin and undecylprodigiosin. These observations were supported by LC-MS analyses of other produced metabolites, including: germicidins, desferrioxamines, and coelimycin. A subsequent microarray differential analysis revealed increased expression of genes associated with the described morphological and physiological changes. Structural and functional similarities between the scr3559 transcript and 6S RNA, and its possible employment in regulating secondary metabolite production are discussed.

Funder

Jan Evangelista Purkyně University in Ústí nad Labem

Charles University

Natural Sciences and Engineering Research Council

Publisher

MDPI AG

Subject

Virology,Microbiology (medical),Microbiology

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