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Influence of microbiologically enriched mineral fertilizers on selected groups of microorganisms in the rhizosphere of strawberry plants

100%

Sas-Paszt L., Smolinska U., Kowalska B., Szczech M., Lisek A., Trzcinski P., Gluszek S., Gornik K., Derkowska E., Sumoruk B.

Journal of Horticultural Research

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2021

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tom 29

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nr 1

2

The effect of biopreparations on root growth and microbiology activity in the rhizosphere of apple trees

100%

Derkowska E., Sas Paszt L., Harbuzov A., Trzcinski P., Bogumil A.

Acta Scientiarum Polonorum. Hortorum Cultus

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2014

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tom 13

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nr 6

The aim of the study was to determine the effect of various biopreparations on the growth of the apple root system, the number of spores of AMF, the total number of bacteria and microscopic fungi in the rhizosphere soil, and the degree of mycorrhizal association in the roots of two apple tree cultivars. The experiment was established in the spring of 2009 in the Experimental Orchard of the Institute of Horticulture in Dąbrowice. The research objects were one-year-old maidens of the apple cultivars ‘Topaz’ and ‘Ariva’ grafted on M26 rootstock. The trees were treated with the following biopreparations: control, control NPK (standard NPK fertilization), manure, Micosat F + manure, Humus UP, Humus Active + Aktywit PM, BioFeed Amin + manure, BioFeed Quality + manure, Tytanit + manure, Vinassa + manure, Florovit Eko, and Florovit Pro Natura. Treatment of ‘Topaz’ and ‘Ariva’ apple trees with the biopreparations Micosat F, Humus UP, Humus Active + Aktywit PM, BioFeed Amin, Vinassa, Florovit Eko and Florovit Pro Natura produced positive effects on the growth of apple roots and their mycorrhizal frequency, and the size of the populations of microorganisms in the rhizosphere soil.

3

Verticillium spp. in the rhizosphere of pot plants

100%

Stankeviciene A., Lugauskas A., Snieskiene V., Juronis V., Varkuleviciene J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2008

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tom 529

From the rhizosphere of investigated pot plants six Verticillium species (V. alboatrum, V. dahliae, V. nigrescens, V. nubilum, V. album and V. fusisporum), potentially dangerous to plants, were isolated. Most often colonized rhizospheres of diseased pot plants by Verticillium album were those of Peperomia obtusifolia and Calathea picturata (relative density 8%). Relative density of Verticillim group in other sick plants rhizosphere was up to 4% whereas that of the healthy looking plants varied from 1 to 3%. Pot plants are very sensitive to factors unfavourable to their growth.

4

Screening and identification of abiotic stress-responsive efficient antifungal Pseudomonas spp. from rice rhizospheric soil

100%

Karnwal A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2021

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tom 102

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nr 1

5

Influence of Fusarium oxysporum f. sp. cubense [E. F.Smith] Snyder and Hansen on 2,4-diacetylphloroglucinol production by Pseudomonas fluorescens migula in banana rhizosphere

100%

Saravanan T., Muthusamy M.

Journal of Plant Protection Research

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2006

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tom 46

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nr 3

241-254

Influence of Fusarium oxysporum f. sp. cubense (E.F. Smith) Snyder and Hansen on 2,4-diacetylphloroglucinol (DAPG) production in the rhizosphere of banana cultivar Rasthali by Pseudomonas fluorescens was investigated. The purified extracts of Pfm strain of P. fluorescens isolated from banana rhizosphere inhibited the growth and spore germination of F. oxysporum f. sp. cubense under laboratory conditions. DAPG extracted from the cultures of the strain was observed as distinct spots in thin layer chromatographic plates at Rf value of 0.88. The extracts of soil inoculated with P. fluorescens and challenge inoculated with F. oxysporum f. sp. cubense eluted at retention time ranges from 20.00 min to 21.30 min. The quantity of DPAG production was less in the extracts of soil inoculated with P. fluorescens and challenge inoculated with F. oxysporum f. sp. cubense as compared to P. fluorescens alone inoculated soil. The talc formulation of Pfm strain also reduced vascular discolouration due to the pathogen in banana plants when inoculated at 15 g/plant.

6

Production of indole acetic acid by Kocuria rosea VB1 and Arthrobacter luteolus VB2 under the influence of L-tryptophan and maize root exudates

100%

Karnwal A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2019

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tom 100

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nr 1

7

Effect of age on the fatty acid composition of the Bacillus subtilis PO270 isolated from wheat rhizosphere

100%

Zarnowski R., Ellis R. J., Lewicka T., Pietr S. J.

Polish Journal of Microbiology

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2004

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tom 53

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nr 4

The changes of the composition of growing medium and the fatty acid composition of Bacillus subtilis PO270, a bacterium isolated from the wheat rhizosphere, was evaluated during different phases of growth. During growth alkalinity reaction of medium was observed and in late stationary phase of growth the release of proteins and phenolic acids from cells was observed. Twenty six fatty acids were detected. The most prominent fatty acids found in bacterial cells were 15:0 a, 15:0 i, 17:0 a and 17:0 i. Depending of a phase of bacterial growth, their contents varied from 86.5 to 88.9% of total fatty acids. The remaining fatty acids identified, including regular saturated and monounsaturated as well as iso- and anteiso-branched, 2- and 3-hydroxylated, cyclopropane and odd-numbered derivatives, were present in minor amounts. We have demonstrated that the fatty acid composition of this bacterium changes greatly in different growth phases. These structural changes represent re-arrangement of membranes, which keeps the bacterial cell fit during growth and counteracts the effects of the changing environment.

8

Effect of the herbicide Roundup on microorganisms in the rhizosphere of grasses

100%

Wachowska U., Banaszkiewicz T.

Natural Sciences

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1999

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tom 02

9

Changes in population of selected bacteria in the rhizosphere of potato under different farming systems

100%

Breza-Boruta B., Paluszak Z.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

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2003

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tom 06

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nr 2

The research was carried out on farms of the Bory Tucholskie Landscape Park near Tuchola. The aim of the research was to define the quantitative content of bacteria of Pseudomonas (the fluorescent subgroup), Arthrobacter, Azotobacter and the coryneform group in the rhizosphere of potato in different stages of its development. The Aster potato was grown in two farming systems: ecological and conventional. Microbiological analysis indicated that the bacteria of the coryneform group were the most numerous, and the next was Arthrobacter spp. More of investigated bacteria were isolated from the rhizosphere of potatoes grown in ecological farming system than in the conventional one. From the results obtained during three years study it is evident that the number of potentially antagonistic bacteria increased with the development of vegetation and was the highest in root zone area of the plants in harvest-mature tubers.

10

Fungal communities of the rhizosphere and the rhizoplane of yellow lupine in a crop rotation system

100%

Cwalina-Ambroziak B., Kurowski T. P.

Acta Mycologica

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2001

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tom 36

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nr 2

11

Testate amoebae communities in the rhizosphere of Rhododendron ponticum (Ericaceae) in an evergreen broadleaf forest in Southern Spain

84%

Vohnik M., Burdikova Z., Wilkinson D. M.

Acta Protozoologica

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2012

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tom 51

|

nr 3

12

Purification and partial characterization of pyoverdine synthesized by Pseudomonas putida

84%

Jankiewicz U., Kuzawinska O.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

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2009

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tom 12

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nr 1

13

Impact of genetically modified maize on the genetic diversity of rhizosphere bacteria: a two-year study in Slovakia

84%

Ondreickova K., Mihalik D., Ficek A., Hudcovicova M., Kraic J., Drahovska H.

Polish Journal of Ecology

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2014

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tom 62

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nr 1

Nowadays, genetically modified plants are cultivated in many countries and it is important to consider their safety for surrounding environment. So, the environmental risk assessments of genetically modified plants are evaluated. This assessment consists of an objective evaluation of risk and involves generating; collecting and assessing of information on a GM plant with the aim to determine its impact on human or animal health and the environment relative to non-genetically modified organisms. One of the numerous methods used to investigate the impact of GM plants on the environment is the Terminal Restriction Fragment Length Polymorphism. This method was used for comparison of genetic variation in populations of bacteria isolated from rhizosphere of genetically modified maize MON810 carrying the gene cry1Ab and genetically non-modified maize. Rhizosphere samples were collected in Slovakia during two years (2008, 2009) in July and September and 16S rRNA gene was amplified from metagenomic DNA using universal eubacterial primers. Differences in the number of terminal restriction fragments between control and GM maize hybrids were not detected. Additionally, variation within bacterial communities composition from rhizosphere of MON810 and non-GM hybrids was not observed, nevertheless negligible differences in composition of bacterial community were observed between two sampling periods (July and September). These changes were observed in non-GM as well as in GM maize hybrids and reflected effects of environment and conditions, no influence of genetic modification. The 16S rDNA clone library creation from rhizosphere sample of MON810 maize followed by DNA sequencing revealed that the Proteobacteria were major group of bacteria and Actinobacteria, Firmicutes, and Chloroflexi were less represented. This study did not confirm any changes in the soil ecosystem, which would have been larger than normal variations caused by external conditions.

14

Struktura zbiorowisk drobnoustrojow ryzosfery pszenicy ozimej chronionej chemicznie

84%

Wachowska U.

Progress in Plant Protection

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2007

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tom 47

|

nr 4

245-250

15

Occurrence and distribution of the Endogonaceae in cultivated soils of Poland

84%

Blaszkowski J.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1991

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tom 39

|

nr 1

16

Functional and transcriptomic characterization of a dye-decolorizing fungus from Taxus rhizosphere

84%

Hao D. C., Song S. M., Cheng Y., Qin Z. Q., Ge G. B., An B. L., Xiao P. G.

Polish Journal of Microbiology

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2018

|

tom 67

|

nr 4

We isolated three laccase-producing fungus strains from Taxus rhizosphere. Myrotheium verrucaria strain DJTU-sh7 had the highest laccase activity of 216.2 U/ml, which was increased to above 300 U/ml after optimization. DJTU-sh7 had the best decolorizing effect for three classes of reactive dyes. The DJTU-sh7-containing fungal consortium displayed the robust decolorizing ability. Both color removal efficiency and chemical oxygen demand were increased in the consortium mediated biotransformation. Transcriptome changes of M. verrucaria elicited by azo dye and phenolic were quantified by the high throughput transcriptome sequencing, and the activities of the selected oxidases and reductases were determined. The possible involvement of oxidases and reductases, especially laccase, aryl alcohol oxidase, and ferric reductase in the biotransformation of dye and phenolic compounds was revealed at both transcriptomic and phenotypic levels. Revealing the transcriptomic mechanisms of fungi in dealing with organic pollutants facilitates the fine-tuned manipulation of strains in developing novel bioremediation and biodegradation strategies.

17

16S microbial phylogeny of multifunctional plant-growth-promoting rhizobacteria from the rhizosphere of maize (Zea mays L.) for agricultural soil fortification

84%

Reena J., Jubu T.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2019

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tom 100

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nr 2

18

Production, characterization and iron binding affinity of hydroxamate siderophores from rhizosphere associated fluorescent Pseudomonas

84%

Deori M., Jayamohan N. S., Kumudini B. S.

Journal of Plant Protection Research

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2018

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tom 58

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nr 1

Fluorescent Pseudomonas (FP) is a major group of plant growth promoting rhizobacteria and a well-known synthesizer of siderophores, which imparts a selective advantage on rhizosphere competence and their biocontrol traits. The present study was aimed at examining the factors affecting the production of siderophores and their potential biocontrol traits. Sixteen FP isolates were shortlisted based on their siderophore-producing ability in chrome azural S medium. The isolates were checked for variations in siderophore production under varying incubation times, temperatures, pH, iron (Fe3+) concentrations and mutagens. In addition, the iron binding affinity of siderophores, mycelial inhibition assay and plant growth promotion traits were assessed. Results showed that the siderophore production was highly influenced by the time of incubation, changes in pH, temperature and iron concentration. Chemical characterization showed that the produced siderophores were hydroxamates. Maximum siderophore production was observed at pH 7 whereas UV and EtBr exposure invariably suppressed siderophore production drastically in all isolates. All FPs from maize rhizosphere showed excellent siderophore production which could be due to the competence in strategy-II of the plant rhizosphere and significant growth inhibition on Fusarium oxysporum. Our results suggest the inclination of siderophores to iron, in terms of various criteria affecting production and the possible role of environmental mutations that affect the natural iron harvesting mechanism.

19

Inhibitory effects of antagonistic bacteria inhabiting the rhizosphere of the sugarbeet plants, on Cercospora beticola Sacc., the causal agent of Cercospora leaf spot disease on sugarbeet

84%

Arzanlou M., Mousavi S., Bakhshi M., Khakvar R., Bandehagh A.

Journal of Plant Protection Research

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2016

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tom 56

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nr 1

In the present study, the antagonistic capability of bacterial agents inhabiting the rhizosphere of sugarbeet plants were evaluated against Cercospora beticola Sacc. under laboratory and greenhouse conditions. After preliminary screening using the dual culture method, 14 strains with higher antagonistic capability were selected for further inhibitory assays against C. beticola. Bacterial strains were identified based on the sequence data of the small subunit-rDNA (SSU-rDNA) gene. Based on the SSU sequence data, the identity of bacterial strains were determined as Bacillus (10 strains: RB1, RB2, RB3, RB4, RB5, RB6, RB7, RB8, RB9, RB10), Paenibacillus (two strains: RP1, RP2), Enterobacter (one strain: RE), and Pseudomonas (one strain: RPs). The results obtained in this study showed that in all of the assays (dual culture, volatile and non-volatile metabolites) bacterial antagonists significantly inhibited the growth of C. beticola compared to the control. Bacillus (RB2) showed the highest inhibition rate on C. beticola in all of the assays. Based on the results of the laboratory assays, three bacterial strains RB2 (Bacillus), RPs (Pseudomonas), and RE (Paenibacillus) were selected for greenhouse assays. The experiment was designed based on a completely randomised design (CRD) with the application of antagonists prior to, simultaneously, and after inoculation with C. beticola on sugarbeet leaves. The reduction in disease severity was evaluated seven days after inoculation. The results of greenhouse assays were consistent with the results of laboratory studies. The obtained results showed that bacterial antagonists significantly reduced the disease severity when compared to the control.

20

Role of alkylresorcinols in colonization of wheat by Pseudomonas sp. strain 150

84%

Magnucka E. G., Pietr S. J.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

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2018

|

tom 21

|

nr 2

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