Pyrrolnitrin production by Burkholderia cepacia and biocontrol of Rhizoctonia stem rot of poinsettia

Hwang, Jaesoon; Chilton, William Scott; Benson, D. M.

doi:10.1016/s1049-9644(02)00044-0

Cited by 69 publications

(36 citation statements)

References 27 publications

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“…These results are also in agreement with the earlier studies on extracellular enzyme production (Fridlender et al 1993;McKevitt et al 1989;Ogawa et al 2002). Different strains of Bcc have been reported as the source of a large variety of antifungal compounds, such as cepacin (Parker et al 1984), pyrrolnitrin (Hwang et al 2002), and siderophores (Sokol et al 1992). In our recent research, the higher level of antifungal activity was found in extraction of filter-sterilized culture supernatants of strain JK-SH007 grown in NB medium with ethyl acetate.…”

Section: Discussionsupporting

confidence: 91%

Isolation and characterization of a new Burkholderia pyrrocinia strain JK-SH007 as a potential biocontrol agent

Ren

Liu

et al. 2011

World J Microbiol Biotechnol

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Poplar canker is a kind of serious disease of poplar branches in China and all over the world. In China, the poplar canker is mainly caused by three pathogens of Cytospora chrysosperma, Phomopsis macrospora and Fusicoccum aesculi, which is hard to control. A collection of 1,013 bacterial isolates obtained from the poplar stems in 9 regions of China. Of all the strains tested, 13 bacterial isolates inhibiting three pathogens (C. chrysosperma, P. macrospora and F. aesculi) growth were selected, whose inhibition zone width were more than 15 mm. Strain JK-SH007 exhibited the most obvious antagonistic activity. Besides, this strain also produced extracellular hydrolytic enzymes (b-1, 3-glucanases, proteases and chitinases). This bacterium had no pathogenicity and was identified as Burkholderia cepacia complex (Bcc) genomovar IX: B. pyrrocinia by the Biolog identification system combined with 16S rDNA and recA gene sequence analysis and morphological, physiological and biochemical methods characteristics. B. pyrrocinia JK-SH007 exhibited the highest biocontrol and colonization capabilities. After 3 months, plant height and ground diameter in poplar seedlings inoculated with JK-SH007 were significantly (P \ 0.05) higher than in control (non-inoculated) plants. The selected B. cepacia isolate colonized poplar stems and leaves endophytically, promoting plant growth and suppressing pathogenic activities of C. chrysosperma, P. macrospora and F. aesculi on seedling of poplar. This is one of the few reports dealing with isolation and characterization of B. cepacia strains with biocontrol activity against the poplar canker. The endophytic isolate also has the potential to perform as plant growth promoter.

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Section: Discussionsupporting

confidence: 91%

Isolation and characterization of a new Burkholderia pyrrocinia strain JK-SH007 as a potential biocontrol agent

Ren

Liu

et al. 2011

World J Microbiol Biotechnol

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“…Besides fluorescent pseudomonads, for which Phl þ strains have already been studied in Morens (for example, Stutz et al, 1986;Ramette et al, 2003;Frapolli et al, 2008), it is the case for the Burkholderia spp., for which certain strains produce various antifungal compounds and can antagonize fungal phytopathogens (Hwang et al, 2002;Compant et al, 2008). It applies also to taxa for which biocontrol ability has been less studied, noticeably Azospirillum spp.…”

Section: Discussionmentioning

confidence: 99%

Comparison of rhizobacterial community composition in soil suppressive or conducive to tobacco black root rot disease

et al. 2009

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Work on soils suppressive to Thielaviopsis basicola-mediated tobacco black root rot has focused on antagonistic pseudomonads to date. The role of non-Pseudomonas rhizosphere populations has been neglected, and whether they differ in black root rot-suppressive versus -conducive soils is unknown. To assess this possibility, tobacco was grown in a suppressive and a conducive soil of similar physicochemical properties, and rhizobacterial community composition was compared using a 16S rRNA taxonomic microarray. The microarray contains 1033 probes and targets 19 bacterial phyla. Among them, 398 probes were designed for Proteobacteria, Firmicutes, Actinomycetes, Cyanobacteria and Bacteroidetes genera/species known to include strains relevant for plant protection or plant growth promotion. Hierarchical clustering as well as principal component analysis of microarray data discriminated clearly between black root rot-suppressive and -conducive soils. In contrast, T. basicola inoculation had no impact on rhizobacterial community composition. In addition to fluorescent Pseudomonas, the taxa Azospirillum, Gluconacetobacter, Burkholderia, Comamonas and Sphingomonadaceae, which are known to comprise strains with plant-beneficial properties, were more prevalent in the suppressive soil. Mycobacterium, Bradyrhizobium, Rhodobacteraceae, Rhodospirillum and others were more prevalent in the conducive soil. For selected taxa, microarray results were largely corroborated by quantitative PCR and cloning/sequencing. In conclusion, this work identified novel bacterial taxa that could serve as indicators of disease suppressiveness in soil-quality assessments, and it extends the range of bacterial taxa hypothesized to participate in black root rot suppression.

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“…Some PGPR decrease or combat the adverse effects of pathogenic microorganisms, by colonizing plants in high population during pathogen attack (Nihorimbere et al 2011). These PGPR are capable of producing antagonistic metabolites such as antibiotics (Compant et al 2005;Haas and Défago 2005), siderophores (RodrÍgueza and Fragaa 1999), HCN (Ahmad et al 2008), phenazines (Pierson and Pierson 2010), pyoluteorin (NowakThompson et al 1999), pyrrolnitrin (Hwang et al 2002). Furthermore, the PGPR must be able to deliver the chemical constituents in right amount, time, and place to effectively combat the adverse effects of pathogenic attack (Lugtenberg and Kamilova 2009).…”

Section: Introductionmentioning

confidence: 99%

Plant-Growth-Promoting Rhizobacteria: Potential Candidates for Gibberellins Production and Crop Growth Promotion

Kang

Waqas

Khan

et al. 2013

Use of Microbes for the Alleviation of Soil Stresses, Volume 1

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Pyrrolnitrin production by Burkholderia cepacia and biocontrol of Rhizoctonia stem rot of poinsettia

Cited by 69 publications

References 27 publications

Isolation and characterization of a new Burkholderia pyrrocinia strain JK-SH007 as a potential biocontrol agent

Isolation and characterization of a new Burkholderia pyrrocinia strain JK-SH007 as a potential biocontrol agent

Comparison of rhizobacterial community composition in soil suppressive or conducive to tobacco black root rot disease

Plant-Growth-Promoting Rhizobacteria: Potential Candidates for Gibberellins Production and Crop Growth Promotion

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