DARWIN21, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
Arch Microbiol. 2020 Aug;202(6):1563-1569. doi: 10.1007/s00203-020-01859-2. Epub 2020 Mar 14.
Cellulosimicrobium sp. JZ28, a root endophytic bacterium from the desert plant Panicum turgidum, was previously identified as a plant growth-promoting bacterium. The genome of JZ28 consists of a 4378,193 bp circular chromosome and contains 3930 CDSs with an average GC content of 74.5%. Whole-genome sequencing analysis revealed that JZ28 was closely related to C. aquatile 3 bp. The genome harbors genes responsible for protection against oxidative, osmotic and salinity stresses, such as the production of osmoprotectants. It also contains genes with a role in the production of volatiles, such as hydrogen sulfide, which promote biotic and abiotic stress tolerance in plants. The presence of three copies of chitinase genes indicates a possible role of JZ28 as biocontrol agent against fungal pathogens, while a number of genes for the degradation of plant biopolymers indicates potential application in industrial processes. Genome sequencing and mining of culture-dependent collections of bacterial endophytes from desert plants provide new opportunities for biotechnological applications.
从沙漠植物粗须野麦中分离到的内生细菌 Cellulosimicrobium sp. JZ28 曾被鉴定为一种促生菌。JZ28 的基因组由一个 4378193bp 的环状染色体组成,包含 3930 个 CDS,GC 含量平均为 74.5%。全基因组测序分析表明,JZ28 与 C. aquatile 3bp 密切相关。基因组中存在许多与抗氧化、耐渗透压和耐盐等有关的基因,例如产生渗透保护剂。它还包含与挥发性物质产生有关的基因,如硫化氢,这有助于提高植物对生物和非生物胁迫的耐受性。几丁质酶基因的存在表明 JZ28 可能作为生防菌来对抗真菌病原体,而大量的植物生物聚合物降解基因则表明其在工业过程中有潜在的应用。对来自沙漠植物的培养依赖型内生细菌的基因组测序和挖掘为生物技术应用提供了新的机会。