Effectiveness Of Bacillus Pumilus Pdslzg-1, A.n Innovative Hydrocarbon-Degrading Bacterium C onferring Antifungal And Plant Growth-Promoting Function
文献类型: 外文期刊
作者: Hao, K; Ullah, H; Qin, XH; Li, HN; Li, F; Guo, P
作者机构:
关键词: Antifungal; Plant hormones; Phyto-microbial remediation; Plant growth-promoting rhizobacteria
期刊名称: 3 BIOTECH
ISSN: 2190-572X
年卷期: 2019 年 9 卷 8 期
页码:
收录情况: JCR(2021版)
摘要: Genome of the hydrocarbon-degrading bacterium Bacillus pumilus PDSLzg-1 was analyzed. A group of gene clusters and pathways associated with nitrogen fixation, plant-bacterial interactions, plant growth-promoting hormone synthesis, antibiotics, secondary metabolite, and disease resistance were identified. In addition, 0.06mg/L of 3-indoleacrylic acid (IAA) and 2mg/L of gibberellin (GA) were, respectively, detected in PDSLzg-1 fermentation broth by high-performance liquid chromatography (HPLC). Up-regulated expression levels of 11 key genes related to GA and IAA biosynthesis pathways were detected after the induction of 0.2% n-hexadecane. Furthermore, bioassays showed that PDSLzg-1 fermentation could significantly promote the length and biomass of the stems and roots of Triticum aestivum L., while inhibited Colletotrichum truncatum colonization. Results indicated that B. pumilus PDSLzg-1 had plant growth-promoting and antifungal functions, besides its potential applications in phyto-microbial bioremediation combinations for oil-contaminated soil.
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