The pqqC gene is essential for antifungal activity of Pseudomonas kilonensis JX22 against Fusarium oxysporum f. sp lycopersici

被引：8
|
作者：
Xu, Jianhong [1 ,2 ]
Deng, Peng [2 ]
Showmaker, Kurt C. [3 ]
Wang, Hui [3 ]
Baird, Sonya M. [2 ]
Lu, Shi-En [2 ]
机构：
[1] Jiangsu Acad Agr Sci, Minist Agr, Key Lab Control Technol & Stand Agroprod Safety &, Nanjing, Jiangsu, Peoples R China
[2] Mississippi State Univ, Dept Biochem Mol Biol Entomol & Plant Pathol, Mississippi State, MS 39762 USA
[3] Mississippi State Univ, Inst Genom Biocomp & Biotechnol, Mississippi State, MS 39762 USA
来源：
FEMS MICROBIOLOGY LETTERS | 2014年 / 353卷 / 02期
基金：
美国食品与农业研究所; 中国国家自然科学基金;
关键词：
bacteria; antimicrobial activity; fungi; mutagenesis; PYRROLOQUINOLINE QUINONE; BIOSYNTHESIS; 2,4-DIACETYLPHLOROGLUCINOL; PURIFICATION; PHYLOGENY; DIVERSITY; BACTERIA; SEQUENCE;
D O I：
10.1111/1574-6968.12411
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
Strain JX22, exhibiting a broad range of antimicrobial activities to fungal pathogens, was isolated and classified as representing Pseudomonas kilonensis. In this study, the mutant JX22MT1 was obtained by the EZ-Tn5 transposon mutation and showed no antifungal activity against Fusarium oxysporum f. sp. lycopersici as compared with wild-type strain JX22. The pqqC gene was disrupted in the mutant. Antifungal activity at the wild-type level was restored from the mutant JX22MT1 with the introduction of the functional pqqC gene, which encodes pyrroloquinoline-quinone synthesis protein C. The results suggest that pqqC is essential for antifungal activity of P.kilonensis JX22 against F.oxysporum f. sp. lycopersici.
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页码：98 / 105
页数：8
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