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Article

Isolation and Characterization of Pseudomonas chlororaphis Strain ST9; Rhizomicrobiota and in Planta Studies

1
International Centre for Genetic Engineering and Biotechnology, 34149 Trieste, Italy
2
Council for Agricultural Research and Economics-Research Centre for Cereal and Industrial Crops, s.s. 11 to Torino, km 2.5, 13100 Vercelli, Italy
3
Institute for Sustainable Plant Protection, National Research Council, Strada delle Cacce 73, 10135 Turin, Italy
4
Council for Agricultural Research and Economics-Research Centre for Vegetable and Ornamental Crops, Corso Inglesi 508, 18038 Sanremo, Italy
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Omoanghe S. Isikhuemhen
Plants 2021, 10(7), 1466; https://doi.org/10.3390/plants10071466
Received: 25 June 2021 / Revised: 12 July 2021 / Accepted: 15 July 2021 / Published: 17 July 2021
(This article belongs to the Special Issue Plant Growth Promoting Bacteria)
The development of biotechnologies based on beneficial microorganisms for improving soil fertility and crop yields could help to address many current agriculture challenges, such as food security, climate change, pest control, soil depletion while decreasing the use of chemical fertilizers and pesticides. Plant growth-promoting (PGP) microbes can be used as probiotics in order to increase plant tolerance/resistance to abiotic/biotic stresses and in this context strains belonging to the Pseudomonas chlororaphis group have shown to have potential as PGP candidates. In this study a new P. chlororaphis isolate is reported and tested for (i) in vitro PGP features, (ii) whole-genome sequence analysis, and (iii) its effects on the rhizosphere microbiota composition, plant growth, and different plant genes expression levels in greenhouse experiments. Results showed that P. chlororaphis ST9 is an efficient rice root colonizer which integrates into the plant resident-microbiota and affects the expression of several plant genes. The potential use of this P. chlororaphis strain as a plant probiotic is discussed. View Full-Text
Keywords: rice; plant growth promoting bacteria; qPCR; microbiota; inoculum persistence; genome analysis rice; plant growth promoting bacteria; qPCR; microbiota; inoculum persistence; genome analysis
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MDPI and ACS Style

Bertani, I.; Zampieri, E.; Bez, C.; Volante, A.; Venturi, V.; Monaco, S. Isolation and Characterization of Pseudomonas chlororaphis Strain ST9; Rhizomicrobiota and in Planta Studies. Plants 2021, 10, 1466. https://doi.org/10.3390/plants10071466

AMA Style

Bertani I, Zampieri E, Bez C, Volante A, Venturi V, Monaco S. Isolation and Characterization of Pseudomonas chlororaphis Strain ST9; Rhizomicrobiota and in Planta Studies. Plants. 2021; 10(7):1466. https://doi.org/10.3390/plants10071466

Chicago/Turabian Style

Bertani, Iris, Elisa Zampieri, Cristina Bez, Andrea Volante, Vittorio Venturi, and Stefano Monaco. 2021. "Isolation and Characterization of Pseudomonas chlororaphis Strain ST9; Rhizomicrobiota and in Planta Studies" Plants 10, no. 7: 1466. https://doi.org/10.3390/plants10071466

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