Plant  Growth  Promoting  Bacterial  Endophytes  Isolated From  Polish  Herbal  Plants

Goryluk-Salmonowicz, Agata; Orzeszko-Rywka, A.; Piórek, Monika; Rekosz-Burlaga, Hanna; Otłowska, Adrianna; Gozdowski, Dariusz; Błaszczyk, Mieczysław

doi:10.24326/asphc.2018.5.9

Cited by 8 publications

(5 citation statements)

References 31 publications

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“…Astorga-Eló et al [45] reported that B. laterosporus DSM 25 exhibited ACC deaminase activity in vitro. Also, several studies reported that P. azotoformans strains possess various growth promotion mechanisms, including N fixation, P and K solubilisation, the production of IAA, ammonium, and siderophores, and the exhibition of ACC deaminase activity [24,[26][27][28][29]43,47,59]. We previously found that B. amyloliquefaciens 33YE and Brevibacillus laterosporus 4YE produce a range of antimicrobial compounds, including antimicrobial peptides [35].…”

Section: Discussionmentioning

confidence: 99%

Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions

Shao,

Arkhipov,

Batool

et al. 2023

Agriculture

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Rhizosphere bacteria can provide multiple benefits to plants, including increased nutrient supply, pathogen/disease control, and abiotic stress tolerance, but results from pot trials do not always translate to field conditions. This study tested whether rhizosphere biocontrol bacteria can also provide plant growth promotion and how benefits can be provided at a commercial farm. Commercial lettuce seeds and plants were treated with rhizosphere biocontrol bacteria Bacillus velezensis UQ9000N, B. amyloliquefaciens 33YE, Brevibacillus laterosporus 4YE, and Pseudomonas azotoformans UQ4510An. 33YE increased the head diameter, plant height, and fresh weight of the Green Moon cultivar, while 33YE, UQ4510An, and UQ9000N increased the fresh and dry weight of Liston, a more heat-tolerant cultivar, via a single seed treatment or repeat root treatments under nursery and field conditions across different inoculation schedules and growth stages. Significant growth promotion was also demonstrated when inoculating field plants after transplanting (in particular for 33YE). Applications of these microbial biostimulants to lettuce seeds or plantlets potentially enable earlier transplanting and earlier harvests. Repeat inoculations using irrigation water and long-lasting formulations may further advance the benefits of these biostimulants as microbial biofertilisers for plant growth promotions in the field.

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Section: Discussionmentioning

confidence: 99%

Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions

Shao,

Arkhipov,

Batool

et al. 2023

Agriculture

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“…Most plant-associated bacteria can produce IAA ( Scott et al, 2013 ; Finkel et al, 2020 ) and there are a few reports of IAA production by E. persicina . For example, E. persicina 2-5b isolated from Chelidonium majus L. collected in Poland produced IAA while growing in LB medium ( Goryluk-Salmonowicz et al, 2018 ), and Liang et al (2021) reported that E. persicina isolated from Elymus nutans also exhibited IAA production ability. More importantly, IAA biosynthesis gene, iaaH , was discovered in the E. persicina Cp2 genome ( Okal et al, 1999 ).…”

Section: Discussionmentioning

confidence: 99%

Seed-Borne Erwinia persicina Affects the Growth and Physiology of Alfalfa (Medicago sativa L.)

et al. 2022

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Seed-borne Erwinia persicina can be transmitted globally via alfalfa (Medicago sativa L.) seed trade, but there is limited information about the impact of this plant-pathogenic bacterium on alfalfa plants. In this study, strain Cp2, isolated from alfalfa seeds, was confirmed by whole-genome sequencing to belong to E. persicina. Subsequently, the effects of Cp2 on alfalfa growth and physiology were evaluated by constructing a rhizosphere infection model. Strain Cp2 had a strong inhibitory effect on the elongation and growth of alfalfa roots, which was very unfavorable to these perennial plants. Furthermore, an increased number of leaf spots and yellowing symptoms were observed in plants of the Cp2 group from day 10 to day 21 and the strain Cp2 was re-isolated from these leaves. Correlation between growth and photosynthetic parameters was analyzed and the significant decreases in fresh weight and root and plant lengths in the Cp2 group were related to the marked reduction of chlorophyll b, carotenoid, transpiration rate, and stomatal conductance of leaves (r > 0.75). In addition, nine physiological indicators of root, stem, and leaf were measured in the plants 21 days after treatment with Cp2. The physiological response of root and leaf to Cp2 treatment was stronger than that of stem. The physiological indicators with the greatest response to Cp2 infection were further explored through principal component analysis, and superoxide dismutase, peroxidase, ascorbate peroxidase, and soluble protein showed the greatest changes in roots, stems, and leaves (P < 0.001). Among tissues, the commonality was the change of soluble protein. Therefore, soluble protein is speculated to be a physiological marker during alfalfa–E. persicina interactions. These findings indicate that once E. persicina spreads from alfalfa seeds to the rhizosphere, it can invade alfalfa roots and cause disease. This study demonstrates that this plant pathogenic bacterium may be a potential threat to new environment when they spread via seed trade and these “dangerous hitchhikers” warrant further attention, especially in the study of bacterial diseases in pasture-based production systems.

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“…Microorganisms inhabiting the internal tissues and intercellular spaces of plants without causing signs of pathogenesis are called endophytes [260]. Endophytes are commonly isolated from herbaceous plants [261][262][263]. The first study on the isolation of endophytic microorganisms resistant to TEs was published by Idris et al [264].…”

Section: Plant Endophytes Resistant To Tesmentioning

confidence: 99%

Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems

Mocek-Płóciniak

Mencel

Zakrzewski³

et al. 2023

Plants

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The pollution of soil by trace elements is a global problem. Conventional methods of soil remediation are often inapplicable, so it is necessary to search intensively for innovative and environment-friendly techniques for cleaning up ecosystems, such as phytoremediation. Basic research methods, their strengths and weaknesses, and the effects of microorganisms on metallophytes and plant endophytes resistant to trace elements (TEs) were summarised and described in this manuscript. Prospectively, bio-combined phytoremediation with microorganisms appears to be an ideal, economically viable and environmentally sound solution. The novelty of the work is the description of the potential of “green roofs” to contribute to the capture and accumulation of many metal-bearing and suspended dust and other toxic compounds resulting from anthropopressure. Attention was drawn to the great potential of using phytoremediation on less contaminated soils located along traffic routes and urban parks and green spaces. It also focused on the supportive treatments for phytoremediation using genetic engineering, sorbents, phytohormones, microbiota, microalgae or nanoparticles and highlighted the important role of energy crops in phytoremediation. Perceptions of phytoremediation on different continents are also presented, and new international perspectives are presented. Further development of phytoremediation requires much more funding and increased interdisciplinary research in this direction.

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Plant Growth Promoting Bacterial Endophytes Isolated From Polish Herbal Plants

Cited by 8 publications

References 31 publications

Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions

Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions

Seed-Borne Erwinia persicina Affects the Growth and Physiology of Alfalfa (Medicago sativa L.)

Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems

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