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Genomic Insights and Functional Analysis Reveal Plant Growth Promotion Traits of Paenibacillus mucilaginosus G78

文献类型： 外文期刊

作者： Wang, Dan 1 ; Poinsot, Verena 2 ; Li, Wangxi 1 ; Lu, Yusheng 1 ; Liu, Chong 1 ; Li, Yaying 1 ; Xie, Kaizhi 1 ; Sun, Lili 1 ; Shi, Chaohong 1 ; Peng, Huanlong 1 ; Li, Wanling 1 ; Zhou, Changmin 1 ; Gu, Wenjie 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Guangdong Engn Res Ctr Soil Microbes & Cultivated, Key Lab Plant Nutr & Fertilizer South Reg,Minist A, Guangzhou 510640, Peoples R China

2.Univ Toulouse III Paul Sabatier, I2MC,Ave Prof Jean Poulhes,BP 84225, Inserm, F-31432 Toulouse 4, France

3.Guangdong Lab Lingnan Modern Agr, Maoming Branch, Maoming 525000, Peoples R China

关键词： Paenibacillus mucilaginosus; IAA; phosphate solubilization; Pel polysaccharide; genome analysis

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 2 期

页码：

收录情况： SCI

摘要： Paenibacillus mucilaginosus has widely been reported as a plant growth-promoting rhizobacteria (PGPR). However, the important genomic insights into plant growth promotion in this species remain undescribed. In this study, the genome of P. mucilaginosus G78 was sequenced using Illumina NovaSeq PE150. It contains 8,576,872 bp with a GC content of 58.5%, and was taxonomically characterized. Additionally, a total of 7337 genes with 143 tRNAs, 41 rRNAs, and 5 ncRNAs were identified. This strain can prohibit the growth of the plant pathogen, but also has the capability to form biofilm, solubilize phosphate, and produce IAA. Twenty-six gene clusters encoding secondary metabolites were identified, and the genotypic characterization indirectly proved its resistant ability to ampicillin, bacitracin, polymyxin and chloramphenicol. The putative exopolysaccharide biosynthesis and biofilm formation gene clusters were explored. According to the genetic features, the potential monosaccharides of its exopolysaccharides for P. mucilaginosus G78 may include glucose, mannose, galactose, fucose, that can probably be acetylated and pyruvated. Conservation of the pelADEFG compared with other 40 Paenibacillus species suggests that Pel may be specific biofilm matrix component in P. mucilaginosus. Several genes relevant to plant growth-promoting traits, i.e., IAA production and phosphate solubilization are well conserved compared with other 40 other Paenibacillus strains. The current study can benefit for understanding the plant growth-promoting traits of P. mucilaginosus as well as its potential application in agriculture as PGPR.

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