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    Tytuł:
    The impact of plant growth promoting bacteria (PGPB) on the development of phytopathogenic fungi
    Autorzy:
    Grobelak, Anna
    Napora, Anna
    Kacprzak, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/765025.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    plant growth promoting bacteria (PGPB)
    soil
    pathogenic fungi
    Opis:
    Bakterie promujące wzrost roślin (PGPB) to wolno żyjące organizmy glebowe, które mogą bezpośrednio lub pośrednio ułatwiać wzrost roślin w biotycznych lub abiotycznych warunkach stresowych. Mogą także produkować fitohormony i syntezować związki lub enzymy, które mogą modulować wzrost i rozwój (Glick et al. 2007). Pośrednie promowanie wzrostu roślin obejmuje wiele mechanizmów, dzięki którym bakterie mogą ograniczać rozwój patogenów roślinnych. Korzystny wpływ na wzrost roślin zmienia się znacznie w zależności od indywidualnych szczepów bakteryjnych oraz warunków wzrostu. Ważnym zjawiskiem jest produkcja antybiotyków przez bakteryjne endofity roślinne, w szczególności obserwowane u licznych gatunków Pseudomonas. Substancje te skutecznie ograniczają wzrost patogenów roślinnych (Klama, 2004). Celem badań było wyizolowanie bakterii strefy korzeniowej i ocena inhibicji wzrostu grzybów będących patogenami roślin wobec wyizolowanych szczepów bakteryjnych. W przeprowadzonych badaniach wykorzystano rośliny (Festuca rubra, Morus alba, Arabidopsis thaliana) rosnące w pobliżu huty cynku w Miasteczku Śląskim na glebie zanieczyszczonej metalami ciężkimi i nawożonej komunalnymi osadami ściekowymi. Bakterie izolowano z korzeni roślin stosując trzy długości czasu dezynfekcji (0, 2.5, 10 min). Po uzyskaniu czystych kultur bakteryjnych prowadzono testy zahamowania wzrostu w warunkach in vitro wobec czterech szczepów grzybów: FO – Fusarium oxysporum, FC – F. culmorum, AA1 – Alternaria alternata 1, AA2 – A. alternata 2. Wyniki eksperymentu wskazują, że bakterie izolowane po czasie 2.5 i 10 minut sterylizacji, czyli głównie bakterie endofityczne, hamowały rozwój badanych grzybów – potencjalnych patogenów roślin. Badania wykazały także, że z rzodkiewnika pospolitego (Arabidopsis thaliana), znanego halofita, pozyskano najwyższą liczbę mikroorganizmów, które także wykazywały najlepsze właściwości inhibitujące wzrost grzybni wszystkich badanych patogenów.
    The main purpose of this study was to evaluate impact of plant growth promoting bacteria (PGPB) on the development of phytopathogenic fungi and correlate it with a potential effects on the growth of plants under unfavorable conditions, in order to improve the efficiency of a phytoremediation process. The conducted research focused on the antifungal properties of PGPB. In this study, 51 isolates of bacteria were obtained after diversified disinfection time from plants growing on soil after sewage sludge amendment. The results revealed that some isolated bacteria, mainly endophytic ones, inhibited the development of Fusarium oxysporum, F. culmorum and Alternaria alternata.
    Źródło:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2014, 10; 107-112
    1730-2366
    2083-8484
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bacterial ACC Deaminase Activity in Promoting Plant Growth on Areas Contaminated with Heavy Metals
    Autorzy:
    Grobelak, A.
    Kokot, P.
    Świątek, J.
    Jaskulak, M.
    Rorat, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/124256.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    ACC deaminase
    endophytes
    heavy metals
    plant growth promoting bacteria
    PGPB
    Opis:
    The objective of this study was to explore the possible improvement of plant growth using the activity of the bacterial enzyme ACC (1-aminocyclopropane-1-carboxylate) deaminase (endophytes and rhizobacteria). The beneficial effect of ACC deaminase activity was tested on the plants growing under stress conditions (high concentrations of heavy metals: cadmium, lead, zinc in the soil). The bacteria were isolated from three plants species: Festuca rubra L., Agrostis capillaris L., Arabidopsis thaliana L. Heynh, acquired from the area contaminated with heavy metals. The strains with the highest ACC deaminase activity were used to prepare a bacterial consortium and inoculate the plants. It has been shown that inoculation of plants with ACC producing bacteria has a positive effect on their growth under stress conditions. The bacterial entophytes strains showed a higher activity of ACC deaminase, which resulted in a higher biomass growth of inoculated plants. The PGPB bacteria may limit the toxicity of harmful ions and thus the increase the adaptive properties of plants. Moreover, it was discovered that the bacteria mainly belonging to genus Bacillus and Pseudomonas had the highest ACC deaminase activity in the environment contaminated with multiple heavy metals. The use of selected microorganisms and plants will provide results in an increasing efficiency of phytoremediation.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 5; 150-157
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Liquid Organic Fertilizers and Soil Moisture Status on Some Biological and Physical Properties of Soil
    Autorzy:
    Moridi, Ameneh
    Zarei, Mehdi
    Moosavi, Ali Akbar
    Ronaghi, Abdolmajid
    Powiązania:
    https://bibliotekanauki.pl/articles/2088180.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    maize
    plant growth-promoting bacteria
    postharvest soil
    vermicompost tea
    vermiwash
    Opis:
    This study was conducted to evaluate the effects of liquid organic fertilizers (LOFs) and soil moisture status on some biological and physical properties of postharvest soil of maize cultivation. For this purpose, a factorial greenhouse experiment was performed based on the completely randomized design with three replications. Treatments consisted of five levels of LOFs (control, vermicompost tea, vermiwash, plant growth-promoting rhizobacteria [PGPR] enriched vermicompost tea and PGPR enriched vermiwash) and three levels of soil moisture status (field capacity [FC], 0.8 FC and 0.6 FC). The results showed LOFs caused an increase of soil biological properties (soil microbial respiration, soil microbial biomass, dehydrogenase activity and the number of aerobic heterotrophic bacteria) and the improvement of soil physical condition. LOFs increased aggregate stability, hydrophobicity and total porosity, while decreased bulk density and soil penetration resistance. Increasing water stress levels reduced soil biological activity and made soil physical properties more unfavorable. In general, LOFs improved soil conditions by enhancing soil physical and biological properties and decreased the negative effects of water stress. In addition, results showed that LOFs enriched with PGPR could be more effective than non-enriched ones.
    Źródło:
    Polish Journal of Soil Science; 2021, 54, 1; 41-58
    0079-2985
    Pojawia się w:
    Polish Journal of Soil Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plant growth promoting properties of Serratia fonticola ART-8 and Pseudomonas putida ART-9 and their effect on the growth of spring wheat (Triticum aestivum L.)
    Autorzy:
    Przemieniecki, S. W.
    Kurowski, T. P.
    Kotlarz, K.
    Krawczyk, K.
    Damszel, M.
    Karwowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/363300.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    Fusarium
    plant growth promoting bacteria
    Pseudomonas putida
    Serratia fonticola
    spring wheat
    Opis:
    Two bacterial strains, Serratia fonticola ART-8 and Pseudomonas putida ART-9, were isolated from soil sown with rye in a monoculture. Although the S. fonticola strain produced more chitinase than the P. putida strain, P. putida produced more cellulase, lipase, HCN, and fluorescent siderophores. P. putida also solubilized more phosphate, and was the only strain to produce pyoverdine. Neither bacteria produced indoleacetic acid (IAA), nor did they produce siderophores on the CAS medium. Neither of the strains was highly effective at inhibiting Fusarium culmorum (~5%) or F. oxysporum (~24%). Wheat plants inoculated with these bacterial strains had higher (5.7-10.0%) thousand kernel weight and there appeared to be a positive association between thousand kernel weight and ear length.
    Źródło:
    Environmental Biotechnology; 2016, 12, 2; 35-39
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bacterial endophytes of Trans-Ili Alatau regions plants as promising components of a microbial preparation for agricultural use
    Autorzy:
    Mukasheva, Togzhan
    Berzhanova, Ramza
    Ignatova, Lyudmila
    Omirbekova, Anel
    Brazhnikova, Yelena
    Sydykbekova, Raikhan
    Shigaeva, Maya
    Powiązania:
    https://bibliotekanauki.pl/articles/1038821.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    bacterial endophytes
    growth-stimulating effect
    plant growth-promoting bacteria
    3-indolylacetic acid
    barley
    soybean
    Opis:
    In this study, 382 isolates of bacterial endophytes from tissues of plants grown in the foothills and piedmont plains of the Trans-Ili Alatau were isolated. It was found that certain strains actively produce indole-3-acetic acid (IAA) in a medium containing l-tryptophan. Among the strains studied, 26 strains (66%) showed a positive response to production of IAA. Bacteria synthesized IAA in the range of 18.6 ± 1.1 to 82.4 ± 2.3 µg/ml. IAA was synthesized more actively by Streptosporangium sp. KK1 (44.1 µg/ml), Rhodococcus sp. KK 2 (42.5 µg/ml), Streptomyces tendae KK3 (44.9 µg/ml) strains. The most active auxin's producer is a Jeotgalicoccus halotolerans BAK1 strain, whose total level of IAA production reached 82.4 µg/ml. Such strains as Streptomyces griseorubiginosis KK4, Streptomyces sp. KK5 and Jeotgalicoccus halotolerans BAK1 were found to have a significant stimulating effect which was reflected in the increase of the length of the roots of soybean and barley. As a result, 8 promising strains with fungicidal, growth-stimulating, phosphorus dissolving and enzymatic activities were selected for the further development of highly microbiological preparations for crop research.
    Źródło:
    Acta Biochimica Polonica; 2016, 63, 2; 321-328
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of Enterococcus italicus ONU547 on the growth and acclimatization of micropropagated Rubus fruticosus L. and Paulownia tomentosa Steud. plants to ex vitro conditions
    Autorzy:
    Tytarenko, Nadiia
    Tesliuk, Nataliia
    Merlich, Andrii
    Haertle, Thomes
    Ivanytsia, Volodymyr
    Powiązania:
    https://bibliotekanauki.pl/articles/16712861.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Paulownia tomentosa
    Rubus fruticosus
    ex vitro acclimatization
    Enterococcus italicus
    antagonism
    plant growth-promoting bacteria
    Opis:
    Clonal micropropagation is an effective method for plant reproduction, applicable in both scientific and industrial domains. However, a significant number of microclones are lost during the ex vitro acclimatization process. To address this, the introduction of beneficial microorganisms into the rhizosphere of micropropagated plants could have a positive effect on the survival rates and external characteristics of acclimatized plantlets. The aim of this study was to determine the protective and growth promoting potential of Enterococcus italicus ONU547 and its effect on micropropagated plants during acclimatization. The antagonistic activity of the bacteria was determined using the agar block method. Lepidium sativum L. seeds were inoculated with bacterial suspensions at concentrations of 106, 107, and 108 CFU/ml. Subsequently, the roots of the microclones were treated with suspensions of 106 and 107 CFU/ml, and biometric characteristics were measured. The results demonstrated antagonistic properties against various phytopathogenic fungi, including Aspergillus niger, Cladosporium cladosporioides, Alternaria alternata, Alternaria tenuissima, Rhizoctonia cerealis, Penicillium expansum, and Paecilomyces variotii. Inoculation of L. sativum L. seeds resulted in improved germination rates, increased root numbers, and enhanced root and shoot lengths. Similarly, the effects of the studied bacteria on Rubus fruticosus L. and Paulownia tomentosa Steud. during the acclimatization stage led to higher survival rates, increased shoot lengths, greater node numbers, and larger leaf areas. A concentration of 107 CFU/ml was identified as optimal for inoculating the microclones. The findings indicate that E. italicus ONU547 holds promise for the inoculation of micropropagated plants during the acclimatization process. Further research is recommended to establish the specific interaction mechanisms between these bacteria and plants.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2023, 104, 3; 301-313
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of plant growth promoting bacteria on transplants growth and lettuce yield in organic production
    Autorzy:
    Szczech, M.
    Szafirowska, A.
    Kowalczyk, W.
    Szwejda-Grzybowska, J.
    Wlodarek, A.
    Maciorowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1080383.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    plant growth promoting bacteria
    organic production
    lettuce
    bacterial strain
    Enterobacter
    Bacillus
    transplant production
    yield quality
    Opis:
    Application of beneficial bacterial strain B125 (Enterobacter sp.) and strain PZ9 (Bacillus sp.) in lettuce transplants production significantly enhanced seed germination and plant biomass. The best effect was obtained when the mixture of B125 and PZ9 was used. Combined application of these bacteria significantly increased transplants biomass, which was about 45% higher than that in the control. However, after planting these transplants in organic field, generally, there were no differences in yield and nutrient content in plants treated and not treated with the bacteria, except for nitrogen and vitamin C. The lettuce grown from transplants treated with bacterial mixture B125 + PZ9 contained significantly higher nitrogen than plants from other treatments. Opposite to nitrogen, bacterial applications decreased the amount of vitamin C. The growth and organic lettuce composition was affected by planting time. The yield was higher in spring, but the concentration of nutrients in these plants was lower than that in plants harvested in autumn. Climatic and light conditions in the late season were the reasons for increased dry matter content, minerals, phenolic compounds, and vitamin C, as well as high concentration of nitrates.
    Źródło:
    Journal of Horticultural Research; 2016, 24, 2; 101-107
    2300-5009
    Pojawia się w:
    Journal of Horticultural Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exploration of phytate-mineralizing bacteria with multifarious plant growth-promoting traits
    Autorzy:
    Kaur, Rajinder
    Kaur, Sukhminderjit
    Powiązania:
    https://bibliotekanauki.pl/articles/16648096.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    phytate-mineralizing bacteria
    phosphate solubilization
    plant growth-promoting potential
    biofertilizers
    bioformulations
    phosphorus
    Opis:
    Phytate-mineralizing bacteria (PMB) with plant growth-promoting activity can be considered as a potential biofertilizer for plant nutrition. PMB catalyzes the conversion of insoluble sugar phosphates, inositols, nucleic acids, phospholipids, nucleotides, phytate, and phytin into soluble forms that can be assimilated by plants. The present study aimed to isolate potential PMB from rhizospheric soils and to study their plant growth-promoting potential for the possible development of a potential phosphobacterium biofertilizer. For this purpose, 34 PMB isolates were isolated that showed potent phytate-mineralizing potential. These isolates were tested for their potential to solubilize tricalcium phosphate (TCP) and for various other plant growth-promoting activities. Significant differences were found among the isolates with regard to phytate mineralization and other plant growth-promoting characteristics. The bacterial isolates biochemically identified as Bacillus, Paenibacillus, Arthrobacter, and Burkholderia exhibited high/medium P solubilization, medium/high phytohormone production, and medium/low siderophore and ammonia production. Among all these isolates, isolate A14 (Burkholderia cenocepacia strain FDAARGOS_7) was the promising isolate with high TCP solubilization, medium phytate mineralization, high enzyme production, medium/high phytohormone production, and medium ammonia production. This strain also showed nitrogen fixation activity, zinc solubilizing potential, potassium solubilization, ACC deaminase production, and catalase production. Hence, it can be concluded that B. cenocepacia can be the potential candidate for biofertilizer development. Future studies are planned for exploring the role of PMB in biofertilizer formulations.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2022, 103, 2; 99-112
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seed bio-priming with phosphate-solubilizing bacteria strains to improve rice (Oryza sativa L. var. FARO 44) growth under ferruginous ultisol conditions
    Autorzy:
    Musa, Saheed I.
    Ikhajiagbe, Beckley
    Powiązania:
    https://bibliotekanauki.pl/articles/16688832.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    bio-priming
    ferruginous soil
    phosphate-solubilizing bacteria
    plant-growth-promoting capabilities
    sustainable agriculture
    rice
    scanning electron microscopy
    Opis:
    This study investigated the possibility of using phosphate-solubilizing bacteria (PSB) with plant-growth-promoting (PGP) capabilities to improve the growth properties of rice plants under ferruginous ultisol (FU) conditions through bio-priming. The following PSB with PGP properties were used in this study: Bacillus cereus strain GGBSU 1, Proteus mirabilis strain TL14-1, and Klebsiella variicola strain AUH-KAM-9, which were previously isolated and characterized based on 16S rRNA gene sequencing. Biosafety analysis of the PSB isolates was conducted using blood agar. The rice seeds were then bio primed with the PSB for 3, 12, and 24 h and then sown in a composite FU soil sample. Differences in germinat ion bioassay were investigated 15 weeks after bio-priming using scanning electron microscopy (SEM), morphology, physiology, and biomass parameters. The composite FU soil used in this study had high pH, low bioavailable phosphorus, low water-holding capacity, and high iron levels, which resulted in low growth properties of rice seeds without bio-priming in the FU soil. Germination parameters were improved in seeds bio primed with the PSB, especially after 12 h of priming, compared with seeds without priming. SEM showed higher bacterial colonization in bio primed seeds. Bio-priming of rice seeds with the studied PSB under FU soil conditions significantly improved seed microbiome, rhizocolonization, and soil nutrient properties, thereby enhancing the growth properties of rice. This indicated the ability of PSB to solubilize and mineralize soil phosphate and improve phosphorus availability and soil properties for optimum plant usage in phosphate-stressed and iron toxic soils.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2023, 104, 1; 33-51
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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