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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Screening of tropically derived, multi-trait plant growth- promoting rhizobacteria and evaluation of corn and soybean colonization ability

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Batista, Bruna Durante [1] ; Lacava, Paulo Teixeira [2] ; Ferrari, Andrea [1] ; Teixeira-Silva, Natalia Sousa [1] ; Bonatelli, Maria Leticia [1] ; Tsui, Sarina [1] ; Mondin, Mateus [1] ; Kitajima, Elliot Watanabe [3] ; Pereira, Jose Odair [4] ; Azevedo, Joao Ludo [1] ; Quecine, Maria Carolina [1]
Total Authors: 11
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Genet, 11 Padua Dias Av, BR-13418900 Piracicaba, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Morphol & Pathol, Ctr Biol & Hlth Sci, Sao Carlos, SP - Brazil
[3] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Plant Pathol & Hematol, Piracicaba, SP - Brazil
[4] Univ Fed Amazonas, Manaus, Amazonas - Brazil
Total Affiliations: 4
Document type: Journal article
Source: MICROBIOLOGICAL RESEARCH; v. 206, p. 33-42, 2018.
Web of Science Citations: 7

The present study assessed the plant growth-promoting (PGP) traits and diversity of culturable rhizobacteria associated with guarana (Paullinia cupana), a typical tropical plant. Ninety-six bacteria were isolated, subjected to biochemical tests, and identified by partial or total 16S rDNA sequencing. Proteobacteria and Firmicutes were the dominant rhizospheric phyla found, and Burkholderia and Bacillus were the most abundant genera. Thirteen strains exhibited the four PGP traits evaluated, and most of them belonged to the genus Burkholderia. Two multi trait PGP strains, RZ2MS9 (Bacillus sp.) and RZ2MS16 (Burkholderia ambifaria), expressively promoted corn and soybean growth under greenhouse conditions. Compared to the non-inoculated control, increases in corn root dry weight of 247.8 and 136.9% were obtained with RZ2MS9 and RZ2MS16 inoculation, respectively, at 60 days after seeding. The dry weights of corn and soybean shoots were significantly higher than those of non-inoculated plants, showing increases of more than 47% for both strains and crops. However, soybean root dry weight did not increased after bacterial inoculation with either strain. The colonization behavior of RZ2MS16 was assessed using GFP-labeling combined with fluorescence microscopy and a cultivation-based approach for quantification. RZ2MS16:gfp was able to colonize the roots and shoots of corn and soybean, revealing an endophytic behavior. (AU)

FAPESP's process: 11/05204-8 - Plant growth promotion by rhizobacteria of guarana.
Grantee:Bruna Durante Batista
Support type: Scholarships in Brazil - Master
FAPESP's process: 14/05420-0 - Monitoring of interaction between plant growth promoter rhizobacterium and rhizobium in soybeans [Glycine max (L.) Merr.]
Grantee:Andréa Ferrari
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 10/14382-4 - Culturable and nonculturable endophytic microorganisms of guarana and the anthracnose control.
Grantee:Maria Leticia Bonatelli
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/01188-9 - Phenotypic and genome-wide association studies of the interaction between Burkholderia ambifaria RZ2MS16, a plant growth promoter rhizobacteria, and the tropical maize
Grantee:João Lúcio de Azevedo
Support type: Regular Research Grants
FAPESP's process: 10/15192-4 - Study of the diversity of culturable endophytic bacteria associated with guarana [Paullinia cupana (Mart.) Ducke.] for the control of anthracnose
Grantee:Sarina Tsui
Support type: Scholarships in Brazil - Scientific Initiation