Biocontrol of Fusarium Crown and Root Rot and Promotion of Growth of Tomato by<i>Paenibacillus</i>Strains Isolated from Soil

Xu, Sheng Jun; Kim, Byung Sup

doi:10.5941/myco.2014.42.2.158

Cited by 56 publications

(33 citation statements)

References 29 publications

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“…Based on cultural and morphological characterization and 16S rRNA gene sequencing, SC09-21 was previously identified as a strain of P. polymyxa (Xu and Kim 2014). The isolated cells were incubated in tryptic soy broth (TSB; Difco) for 3 days at 28°C in a rotary shaker at 180 rpm.…”

Section: Bacterial and Fungal Strains And Inoculum Preparationmentioning

confidence: 99%

“…Many bacteria thrive in plant rhizospheres. However, spore-forming, plant growthpromoting rhizobacteria (PGPR) in particular, more than nonspore-forming bacteria, are relatively easy in terms of formulation and are more stable in soil (Emmert and Handelsman 1999;Xu and Kim 2014). Among these bacteria, Paenibacillus polymyxa strains isolated from the rhizosphere Section Editor: Wagner Bettiol of some vegetable crops have suppressed several plant diseases and promoted plant growth.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Paenibacillus polymyxa strain SC09-21 for biocontrol of Phytophthora blight and growth stimulation in pepper plants

Kim

2016

Trop. plant pathol.

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We assessed the efficacy of Paenibacillus polymyxa strain SC09-21 for reducing Phytophthora blight (caused by Phytophthora capsici) in pepper plants, and its ability to enhance plant growth. The results of in vitro studies indicated that SC09-21 effectively reduced the radial growth of eight plant pathogens in dual culture, and exerted the maximum antifungal activity against P. capsici. SC09-21 produced ammonia, cellulase, indole-3-acetic acid, protease, and siderophores, and solubilized calcium phosphate. Compared to the control, SC09-21 significantly (P = 0.05) reduced Phytophthora blight severity in pepper plants. After treatment with SC09-21, pepper leaves showed an increase in phenylalanine ammonia lyase (PAL), peroxidase (PO), polyphenol oxidase (PPO), and superoxide dismutase (SOD) activities. PAL, PPO, PO, and SOD activities were higher in treated seedlings than in untreated control. In addition, SC09-21 treatment enhanced pathogenesis-related (PR) protein gene expression in pepper plants, including those of CaPR4 and CaChi2, in the absence of P. capsici. Thus, SC09-21 enhanced different growth parameters. These results indicate that SC09-21 induces a defensive response against P. capsici and promotes growth in pepper plants. Therefore, it could be used as a potential agent for the biological control and growth promotion of plants.

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Section: Bacterial and Fungal Strains And Inoculum Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Paenibacillus polymyxa strain SC09-21 for biocontrol of Phytophthora blight and growth stimulation in pepper plants

Kim

2016

Trop. plant pathol.

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“…Plant growth promoting rhizobacteria (PGPR) are a heterogeneous group of bacteria that are present in the rhizosphere and exert beneficial effects on plant development (Kloepper et al, 1980; Lugtenberg and Kamilova, 2009). The rhizosphere is an extremely dynamic micro-niche in which complex interactions occur between plant roots and microorganisms (Molina et al, 2000; Uroz et al, 2010; Blom et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Genome-Guided Insights into the Plant Growth Promotion Capabilities of the Physiologically Versatile Bacillus aryabhattai Strain AB211

et al. 2017

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Bacillus aryabhattai AB211 is a plant growth promoting, Gram-positive firmicute, isolated from the rhizosphere of tea (Camellia sinensis), one of the oldest perennial crops and a major non-alcoholic beverage widely consumed all over the world. The whole genome of B. aryabhattai AB211 was sequenced, annotated and evaluated with special focus on genomic elements related to plant microbe interaction. It’s genome sequence reveals the presence of a 5,403,026 bp chromosome. A total of 5226 putative protein-coding sequences, 16 rRNA, 120 tRNA, 8 ncRNAs, 58 non-protein coding genes, and 11 prophage regions were identified. Genome sequence comparisons between strain AB211 and other related environmental strains of B. aryabhattai, identified about 3558 genes conserved among all B. aryabhattai genomes analyzed. Most of the common genes involved in plant growth promotion activities were found to be present within core genes of all the genomes used for comparison, illustrating possible common plant growth promoting traits shared among all the strains of B. aryabhattai. Besides the core genes, some genes were exclusively identified in the genome of strain AB211. Functional annotation of the genes predicted in the strain AB211 revealed the presence of genes responsible for mineral phosphate solubilization, siderophores, acetoin, butanediol, exopolysaccharides, flagella biosynthesis, surface attachment/biofilm formation, and indole acetic acid production, most of which were experimentally verified in the present study. Genome analysis and experimental evidence suggested that AB211 has robust central carbohydrate metabolism implying that this bacterium can efficiently utilize the root exudates and other organic materials as an energy source. Genes for the production of peroxidases, catalases, and superoxide dismutases, that confer resistance to oxidative stresses in plants were identified in AB211 genome. Besides these, genes for heat shock tolerance, cold shock tolerance, glycine-betaine production, and antibiotic/heavy metal resistance that enable bacteria to survive biotic/abiotic stress were also identified. Based on the genome sequence information and experimental evidence as presented in this study, strain AB211 appears to be metabolically diverse and exhibits tremendous potential as a plant growth promoting bacterium.

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“…There have been reports of role of bacteria in enhancing microalgal production. As an example, Rhizobium sp., is a part of a community of bacteria which promote plant growth and collectively termed as plant growth promoting rhizobacteria (PGPR) (Kloepper et al, 1980; Lee et al, 2013). Recent studies on PGPR revealed that they significantly enhance microalgal growth (Hernandez et al, 2009; Lee et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Phycospheric Native Bacteria Pelagibaca bermudensis and Stappia sp. Ameliorate Biomass Productivity of Tetraselmis striata (KCTC1432BP) in Co-cultivation System through Mutualistic Interaction

Park

Wang

et al. 2017

Front. Plant Sci.

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Effective sustainable algal cultivation techniques are essential for mass production of the marine microalga Tetraselmis for biofuel and array of co-products. The phycospheric communities affect the microalgal growth and metabolism through various allelochemical and nutrient interactions; hence, their potential to affect the quantity and quality of both biomass and bioproducts is significant. In the present study, we have screened the phycospheric communities of biofuel producing Tetraselmis striata (KCTC1432BP). A total of 26 bacterial strains were isolated and identified from the phycosphere of T. striata mass culture. Then, each bacterial strain was tested in co-cultivation conditions with T. striata for evaluating its growth promoting and inhibitory effects. Among these all strains, two promising strains (Pelagibaca bermudensis KCTC 13073BP and Stappia sp. KCTC 13072BP) were selected because of their maximum growth promoting effects and mutualistic interactions. The growth rate, biomass productivity, lipid contents, and fatty acids were analyzed during their combined growth in O3 media and compared with axenic growth of T. striata. Later, growth promoting mechanisms in the co-cultivation environment were investigated for these promising bacterial strains under replete and limited conditions of nutrients (nitrate, phosphate, and vitamin B12). The growth promoting potential of P. bermudensis was illustrated by the two fold enhancement in biomass productivity. These bacteria are promising for microalgal cultivation without any negative effects on the native seawater bacterial communities, as revealed by next generation sequencing analysis. This study represents, to date, the first report highlighting the role of phycospheric growth promoting bacteria of promising biofuel feedstock T. striata.

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Biocontrol of Fusarium Crown and Root Rot and Promotion of Growth of Tomato byPaenibacillusStrains Isolated from Soil

Cited by 56 publications

References 29 publications

Evaluation of Paenibacillus polymyxa strain SC09-21 for biocontrol of Phytophthora blight and growth stimulation in pepper plants

Evaluation of Paenibacillus polymyxa strain SC09-21 for biocontrol of Phytophthora blight and growth stimulation in pepper plants

Genome-Guided Insights into the Plant Growth Promotion Capabilities of the Physiologically Versatile Bacillus aryabhattai Strain AB211

Phycospheric Native Bacteria Pelagibaca bermudensis and Stappia sp. Ameliorate Biomass Productivity of Tetraselmis striata (KCTC1432BP) in Co-cultivation System through Mutualistic Interaction

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