Project description:The plant growth-promoting rhizobacterium Pseudomonas protegens H78, which was isolated from the rhizosphere of oilseed rape in Shanghai, can produce a large array of antibiotics with a broad spectrum of activities. Here, we report the annotated complete genome sequence of P. protegens H78.
Project description:We report the complete genome sequence of the free-living bacterium Pseudomonas protegens (formerly Pseudomonas fluorescens) CHA0, a model organism used in plant-microbe interactions, biological control of phytopathogens, and bacterial genetics.
Project description:We report the draft genome sequence of Pseudomonas sp. strain LD120, which was isolated from a brown macroalga in the Baltic Sea. The genome of this marine Pseudomonas protegens subgroup bacterium harbors biosynthetic gene clusters for toxic metabolites typically produced by members of this Pseudomonas subgroup, including 2,4-diacetylphloroglucinol, pyoluteorin, and rhizoxin analogs.
Project description:ErfA is a transcription factor of Pseudomonas aeruginosa. We here define the genome-wide binding sites of ErfA by DAP-seq in Pseudomonas aeruginosa PAO1 and IHMA87, Pseudomonas chlororaphis PA23, Pseudomonas protegens CHA0 and Pseudomonas putida KT2440. Overall design: DAP-seq analysis of His-tagged purified ErfA protein binding to sheared genomic DNA of Pseudomonas aeruginosa PAO1 and IHMA87, Pseudomonas chlororaphis PA23, Pseudomonas protegens CHA0 and Pseudomonas putida KT2440. DAP-seq was performed with ErfA protein from P. aeruginosa or P. chlororaphis. Samples with P. chloroaphis ErfA include "chlo" in the sample title.
Project description:Orfamide-type cyclic lipopeptides (CLPs) are biosurfactants produced by Pseudomonas and involved in lysis of oomycete zoospores, biocontrol of Rhizoctonia and insecticidal activity against aphids. In this study, we compared the biosynthesis, structural diversity, in vitro and in planta activities of orfamides produced by rhizosphere-derived Pseudomonas protegens and related Pseudomonas species. Genetic characterization together with chemical identification revealed that the main orfamide compound produced by the P. protegens group is orfamide A, while the related strains Pseudomonas sp. CMR5c and CMR12a produce orfamide B. Comparison of orfamide fingerprints led to the discovery of two new orfamide homologs (orfamide F and orfamide G) in Pseudomonas sp. CMR5c. The structures of these two CLPs were determined by nuclear magnetic resonance (NMR) and mass spectrometry (MS) analysis. Mutagenesis and complementation showed that orfamides determine the swarming motility of parental Pseudomonas sp. strain CMR5c and their production was regulated by luxR type regulators. Orfamide A and orfamide B differ only in the identity of a single amino acid, while orfamide B and orfamide G share the same amino acid sequence but differ in length of the fatty acid part. The biological activities of orfamide A, orfamide B, and orfamide G were compared in further bioassays. The three compounds were equally active against Magnaporthe oryzae on rice, against Rhizoctonia solani AG 4-HGI in in vitro assays, and caused zoospore lysis of Phytophthora and Pythium. Furthermore, we could show that orfamides decrease blast severity in rice plants by blocking appressorium formation in M. oryzae. Taken all together, our study shows that orfamides produced by P. protegens and related species have potential in biological control of a broad spectrum of fungal plant pathogens.
Project description:We report the complete genome sequence of Pseudomonas protegens SN15-2, which was isolated from the rhizosphere of tomato roots in Shanghai, China, and can be used in the biological control of phytopathogens. This annotated version will be the basis for upcoming genomic studies.
Project description:We report here the complete annotated genome sequence of ?GP100, a lytic bacteriophage of the Podoviridae family. ?GP100 was isolated from rhizosphere soil in Switzerland and infects specifically strains of Pseudomonas protegens that are known for their plant-beneficial activities. Phage ?GP100 has a 50,547-bp genome with 76 predicted open reading frames.
Project description:Transcriptomic profiles of Pseudomonas protegens H78 and its rpoN-deleted mutant (H78ΔrpoN), which were grown to the late exponential phase (OD600 = 4.0 to 5.0) in the KMB media at 28 °C, were assessed by deep sequencing (RNA-seq) on BGISEQ-500 (illumina). Overall design: Two bacterial strains, Pseudomonas protegens H78 wild type strain and its rpoN-deleted mutant strain (H78ΔrpoN), each was replicated three times.
Project description:Transcriptomic profiles of Pseudomonas protegens H78 and its (p)ppGpp0 relA/spoT mutant, which were grown to the late exponential phase (OD600 = 5.0 to 6.0) in the KMB media at 28 °C, were assessed by deep sequencing (RNA-seq) on Illumina 2500. Overall design: Two bacterial strains, Pseudomonas protegens H78 wild type strain and its (p)ppGpp0 mutant strain, each was replicated three times.