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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.)

Endophytic bacteria isolated from orchid and their potential to promote plant growth

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Faria, Deise Cristina [1] ; Franco Dias, Armando Cavalcante [2] ; Melo, Itamar Soares [3] ; de Carvalho Costa, Francisco Eduardo [4]
Total Authors: 4
[1] Univ Vale do Sapucai. UNIVAS
[2] Univ Sao Paulo. Ctr Nucl Energy Agr
[3] Embrapa Meio Ambiente. Lab Environm Microbiol
[4] INATEL. Telecomunicat Natl Inst
Total Affiliations: 4
Document type: Journal article
Source: WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY; v. 29, n. 2, p. 217-221, FEB 2013.
Web of Science Citations: 13

Twelve endophytic bacteria were isolated from the meristem of in vitro Cymbidium eburneum orchid, and screened according to indole yield quantified by colorimetric assay, in vitro phosphate solubilization, and potential for plant growth promotion under greenhouse conditions. Eight strains with positive results were classified into the genus Paenibacillus by FAME profile, and evaluated for their ability to increase survival and promote the growth of in vitro germinated Cattleya loddigesii seedlings during the acclimatization process. The obtained results showed that all strains produced detectable indole levels and did not exhibit potential for solubilizing inorganic phosphate. Particularly, an increase of the total biomass and number of leaves was observed. Two strains of Paenibacillus macerans promoted plant growth under greenhouse conditions. None of the treatments had a deleterious effect on growth of inoculated plants. These results suggest that these bacterial effects could be potentially useful to promote plant growth during seedling acclimatization in orchid species other than the species of origin. (AU)

FAPESP's process: 04/13910-6 - Biodiversity and functional activities of microorganisms from mangrove of the State of São Paulo
Grantee:Itamar Soares de Melo
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 08/54013-8 - Diversity of archaea and bacteria involved in the nitrogen cycling in mangrove sediments
Grantee:Armando Cavalcante Franco Dias
Support type: Scholarships in Brazil - Doctorate