Abstract
Halomonas elongata strain K4 is an endophytic bacterial strain that was isolated from roots of Cyperus conglomeratus collected at the Red Sea coast in Thuwal, Saudi Arabia. Here, we present a draft genome sequence of this strain, highlighting a number of pathways involved in plant growth promotion under salt stress.
Highlights
Within the framework of the Darwin21 project, an extensive microbial collection of isolates from roots of different desert plants was obtained and revealed a number of strains belonging to the Halomonadaceae family that have the ability to promote the growth of Arabidopsis thaliana plants under salt stress conditions
Halomonas elongata strain K4 was isolated from surfacesterilized roots of Cyperus conglomeratus, a naturally occurring plant in the desert of the Arabian Peninsula
Based on 16S rRNA gene analysis, the K4 strain was closely related to both H. elongata 1H9 (NR_074782) and H. elongata DSM 2581 (NC_014532) with 99% sequence similarity [2]
Summary
Within the framework of the Darwin21 project (http://www .darwin21.net), an extensive microbial collection of isolates from roots of different desert plants was obtained and revealed a number of strains belonging to the Halomonadaceae family that have the ability to promote the growth of Arabidopsis thaliana plants under salt stress conditions. Ectoine (1,4,5,6-tetrahydro-2-methyl-4pyrimidine carboxylic acid) is a widely distributed compatible solute accumulating in halophilic and halotolerant microorganisms to prevent osmotic stress in highly saline environments and is responsible for enhancing salt tolerance in bacteria [3, 4] and plants [5,6,7]. Halomonas elongata strain K4 was isolated from surfacesterilized roots of Cyperus conglomeratus, a naturally occurring plant in the desert of the Arabian Peninsula.
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