Regulation Mechanism Mediated by Trans -Encoded sRNA Nc117 in Short Chain Alcohols Tolerance in Synechocystis sp. PCC 6803

Frontiers in Microbiology
Yanqi BiWeiwen Zhang

Abstract

Microbial small RNAs (sRNAs) play essential roles against many stress conditions in cyanobacteria. However, little is known on their regulatory mechanisms on biofuels tolerance. In our previous sRNA analysis, a trans-encoded sRNA Nc117 was found involved in the tolerance to ethanol and 1-butanol in Synechocystis sp. PCC 6803. However, its functional mechanism is yet to be determined. In this study, functional characterization of sRNA Nc117 was performed. Briefly, the exact length of the trans-encoded sRNA Nc117 was determined to be 102 nucleotides using 3' RACE, and the positive regulation of Nc117 on short chain alcohols tolerance was further confirmed. Then, computational target prediction and transcriptomic analysis were integrated to explore the potential targets of Nc117. A total of 119 up-regulated and 116 down-regulated genes were identified in nc117 overexpression strain compared with the wild type by comparative transcriptomic analysis, among which the upstream regions of five genes were overlapped with those predicted by computational target approach. Based on the phenotype analysis of gene deletion and overexpression strains under short chain alcohols stress, one gene slr0007 encoding D-glycero-alpha-D-manno-heptose ...Continue Reading

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Citations

Nov 9, 2018·Frontiers in Microbiology·Jinlu Hu, Qiang Wang

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Datasets Mentioned

BETA
SRP130885

Methods Mentioned

BETA
PCR
RNA-seq
environmental stresses
environmental stress

Software Mentioned

IntaRNA
Burrows
GOseq R package
DESeq2
HiSeq Control Software ( HCS ) OLB + GAPipeline
NGS QC Toolkit
HTSeq
StepOnePlus
R
Wheeler Alignment

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