Cultivable actinomycetes from rhizosphere of birch (<i>Betula pendula</i>) growing on a coal mine dump in Silets, Ukraine

Ostash, Bohdan; Gren, Tetiana; Hrubskyy, Yaroslav; Tistechok, Stepan; Beshley, S.; Baranov, V.; Fedorenko, Victor

doi:10.1002/jobm.201200551

Cited by 11 publications

(10 citation statements)

References 29 publications

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“…Organic acid-producers and rare phosphate solubilizers were present in both populations and were not significantly different. The production of siderophores by Streptomyces isolates has already been shown by Ostash et al (2013) . The genetically and enzymatically based siderophore biosynthesis and transport are well-described in Streptomyces ( Cruz-Morales et al, 2017 ).…”

Section: Resultsmentioning

confidence: 86%

“…Isolates from our soils were restricted to the genera Streptomyces, Arthrobacter , and Rhodococcus , as previously described ( Álvarez-López et al, 2015 ). Streptomyces was also isolated from Mn-contaminated soils ( Mo et al, 2017 ) and from the birch rhizosphere collected on the coal mining dump ( Ostash et al, 2013 ). The rhizosphere from the Ni-hyperaccumulating plant Alyssum serpyllifolium hosts Ni-resistant bacteria that were predominantly belonging to the Arthrobacter and Streptomyces genera ( Becerra-Castro et al, 2011b ).…”

Section: Resultsmentioning

confidence: 99%

“…Despite these recognized traits, the plant growth promoting (PGP) rhizospheric potential of Streptomyces has been poorly studied, although there are widely recognized as efficient root colonizers and able to cope with unfavorable growth conditions by forming spores. Actinomycetes strains were isolated from birch rhizospheric soils, birch being one of the few native tree able to succeed on a coal mine dump ( Ostash et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

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Streptomyces Dominate the Soil Under Betula Trees That Have Naturally Colonized a Red Gypsum Landfill

et al. 2018

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The successful restoration of well-engineered tailings storage facilities is needed to avoid mine tailings problems. This study characterized the bacterial communities from vegetated and non-vegetated soils from a red gypsum landfill resulting from the industrial extraction of titanium. A set of 275 bacteria was isolated from vegetated soil and non-vegetated soil areas and taxonomically characterized using BOX-PCR. The study also evaluated the ability of a subset of 88 isolated bacteria on their ability to produce plant growth promoting (PGP) traits [indoleacetic acid (IAA) production, phosphate solubilization, and siderophore production] and their tolerance to potentially toxic elements (PTEs). Twenty strains were chosen for further analysis to produce inoculum for birch-challenging experiments. Principal component analysis (PCA) showed that the set of pedological parameters (pH, granulometry, carbon, organic matter, and Mg content) alone explained approximately 40% of the differences between the two soils. The highest density of total culturable bacteria was found in the vegetated soil, and it was much higher than that in the non-vegetated soil. The Actinobacteria phyla dominated the culturable soil community (70% in vegetated soil and 95% in non-vegetated soil), while the phyla Firmicutes (including the genus Bacillus) and Bacteroides (including the genera Pedobacter and Olivibacter) were found only in the vegetated soil fraction. Additional genera (Rhizobium, Variovorax, and Ensifer) were found solely in the vegetated soil. The vegetated soil bacteria harbored the most beneficial PGP bacteria with 12% of the isolates showing three or more PGP traits. The strains with higher metal tolerances in our study were Phyllobacterium sp. WR140 (RO1.15), Phyllobacterium sp. WR140 (R01.34), and Streptomyces sp. (R04.15), all isolated from the vegetated soil. Among the isolates tested in challenging experiments, Phyllobacterium (R01.34) and Streptomyces sp. (R05.33) have the greatest potential to act as PGP rhizobacteria and therefore to be used in the biological restoration of tailings dumps.

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Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Streptomyces Dominate the Soil Under Betula Trees That Have Naturally Colonized a Red Gypsum Landfill

et al. 2018

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“…Amycolatopsis are isolated from the rhizosphere of various plants such as rice (Thawai et al, 2018), canola (Lay et al, 2018), birch (Ostash et al, 2014), Panax notoginseng (Peng et al, 2019), eucalyptus (Himaman et al, 2016).…”

Section: Loliam Et Al (2012) Andmentioning

confidence: 99%

Isolation and identification of Amycolatopsis sp. strain 1119 with potential to improve cucumber fruit yield and induce plant defense responses in commercial greenhouse

et al. 2021

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Background and aimsThe application of chemical fungicides is the rst strategy to control plant fungal diseases. This approach is highly polluting for the environment and affects human health. Arti cial introduction of bene cial rhizobacteria into the soil can be an economical and practical way to control phytopathogenic fungi in commercial greenhouses. Here, we recount the travel of a rare Actinomycete (Amycolatopsis strain 1119) from a maize eld to a commercial cucumber greenhouse. Methods and resultsCulturable bacteria from rhizosphere and bulk soils of dicot and monocot crops were isolated and screened. About 20% of the representative colonies showed Actinomycetes appearance. 106 Actinomycetes that had antagonistic activity against Phytophthora capsici and were able to produce IAA were selected for further analysis. Two Streptomyces strains (432 and 615) and 2 Amycolatopsis strains (3513 and 1119) that showed a positive effect on plant growth in greenhouse conditions were selected to evaluate for biocontrol potential. Strains 432, 3513, 615 and 1119 controlled incidence of the damping-off by 65%, 42%, 83% and 100% respectively. Application of strain 1119 under commercial greenhouse conditions resulted in an increase in fruit yield (20%) and a decrease in fruit nitrate content (70%). Increased antioxidant enzymes activity and increased LOX and APX transcription and also, increased expression of two genes PR1-1a and GLU (SAR genes) showed that strain 1119 could induce both ISR and SAR in cucumber without pathogen exposure. ConclusionOur results demonstrate that the Amycolatopsis strain 1119, has a great potential to enter the market as a bio-stimulator.

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“…could colonize the roots of Betula pendula Roth (silver birch) in a red gypsum landfill in unfavorable conditions, forming spores and favoring the growth of the plant. A similar approach (birch and strains of actinomycetes as rooting agents) was also successful in the restoration of coal mine landfills (Ostash et al 2014).…”

Section: Streptomyces Spp As Plant-growth Promoters and Biofertilizersmentioning

confidence: 98%

Síntesis de nuevos antifúngicos de origen natural para su uso en agricultura

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Cultivable actinomycetes from rhizosphere of birch (Betula pendula) growing on a coal mine dump in Silets, Ukraine

Cited by 11 publications

References 29 publications

Streptomyces Dominate the Soil Under Betula Trees That Have Naturally Colonized a Red Gypsum Landfill

Streptomyces Dominate the Soil Under Betula Trees That Have Naturally Colonized a Red Gypsum Landfill

Isolation and identification of Amycolatopsis sp. strain 1119 with potential to improve cucumber fruit yield and induce plant defense responses in commercial greenhouse

Síntesis de nuevos antifúngicos de origen natural para su uso en agricultura

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