Publication
The effect of phosphate-solubilizing rhizobacteria on Zea mays growth on P-deficient soils
| dc.contributor.author | Pereira, Sofia I. A. | |
| dc.contributor.author | Castro, Paula M. L. | |
| dc.date.accessioned | 2014-10-29T10:27:09Z | |
| dc.date.available | 2014-10-29T10:27:09Z | |
| dc.date.issued | 2013-12-06 | |
| dc.description.abstract | P-deficiency in soils is a limiting factor for plant growth. Several phosphate-solubilizing rhizobacteria (PSB) were used to enhance growth of Zea mays growing in a P-deficient soil. Strains were screened for their ability to solubilize P and to produce plant growth promoting (PGP) substances. The best-P solubilizing strains Rhodococcus sp EC35, Pseudomonas sp. EAV and Arthrobacter nicotinovorans EAPAA were inoculated in maize growing in P-deficient soils without P fertilization and amended with soluble (KH2PO4) and insoluble P (Ca3(PO4)2). Results showed that PSB significantly enhanced Z. mays biomass production in all P-treatments. Without P fertilization, bacterial inoculation increased plant dry biomass by ca. 20%, while under soluble P conditions the enhancement was higher. Pseudomonas sp. EAV was the strain that better performed improving root and shoot biomass by 104% and 60 %, respectively. In soils amended with insoluble P, plant biomass was also positive influenced by bacterial inoculation. Plant growth enhancement seems to be related not only to P-solubilization but also to other PGP traits, such as IAA and ACC-deaminase. This work shows that PSB may be used as bioinoculants and consequently constitute an attractive alternative to the phosphatic fertilizers amendments used to improve crop production. | por |
| dc.identifier.citation | PEREIRA, Sofia I.A.; CASTRO, Paula M.L. - The effect of phosphate-solubilizing rhizobacteria on Zea mays growth on P-deficient soils. In MicroBiotec’13, Aveiro, Portugal, 6-8 December 2013 - In MICROBIOTECH 2013: Book of Abstracts. p. 211. Available at: http://microbiotec13.web.ua.pt/docs/e-book%20Microbiotec%202013%20Aveiro.pdf | por |
| dc.identifier.uri | http://hdl.handle.net/10400.14/15369 | |
| dc.language.iso | eng | por |
| dc.relation | PTDC-AGR-CFL-111583-2009 | por |
| dc.subject | Phosphate-solubilizing bacteria | por |
| dc.subject | Plant growth promotion | por |
| dc.subject | P solubilization | por |
| dc.title | The effect of phosphate-solubilizing rhizobacteria on Zea mays growth on P-deficient soils | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| person.familyName | Castro | |
| person.givenName | Paula | |
| person.identifier | 2013444 | |
| person.identifier.ciencia-id | 7C1F-6C72-354A | |
| person.identifier.orcid | 0000-0001-8841-6606 | |
| person.identifier.rid | M-8241-2013 | |
| person.identifier.scopus-author-id | 7102781782 | |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | f2253992-dc8d-4042-9a0f-597ebcf0a1d6 | |
| relation.isAuthorOfPublication.latestForDiscovery | f2253992-dc8d-4042-9a0f-597ebcf0a1d6 |